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XC6211 Series
Preliminary
High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
July 4, 2003 Ver. 3
Low Power Consumption Dropout Voltage Output Current
: 25 A (TYP)
: 60mV (IOUT=30mA) 200mV (IOUT=100mA) : 150 mA (VOUT < 1.7V) 240 mA ( VOUT 1.8V) (300mA limit)
Applications
Mobile phones Cordless phones and radio communication equipment Portable games Cameras, Video recorders Reference Voltage Source Battery Powered Equipment
Highly Accurate : 2% (30mV when VOUT=1.5V) Output Voltage Range : 0.9V ~ 5.0 V (50mV Step) Low ESR capacitor compatible
General Description
The XC6211 series are highly accurate, low noise, CMOS LDO Voltage Regulators. Offering low output noise, high ripple rejection ratio, low dropout and very fast turn-on times, the XC6211 series is ideal for today's cutting edge mobile phone. Internally the XC6211 includes a reference voltage source, error amplifiers, driver transistors, current limiters and phase compensators. The XC6211's current limiters' foldback circuit also operates as a short protect for the output current limiter and the output pin. The output voltage is set by laser trimming. Voltages are selectable in 50mV steps within a range of 0.9V to 5.0V. The XC6211 series is also fully compatible with low ESR ceramic capacitors, reducing cost and improving output stability. This high level of output stability is maintained even during frequent load fluctuations, due to the excellent transient response performance and high PSRR achieved across a broad range of frequencies. The CE function allows the output of regulator to be turned off, resulting in greatly reduced power consumption. The XC6211 series is available in the SOT-23-5 package.
Features
Maximum Output Current
: 150 mA (VOUT < 1.7V) 240 mA ( VOUT 1.8V) (300mA limit)
Dropout Voltage Operating Voltage Range Output Voltage Range Highly Accurate Low Power Consumption Standby Current High Ripple Rejection Operating Temperature Range Low ESR Capacitor Compatible Ultra Small Packages
: 200mV (IOUT=100mA) : 2.0V ~ 6.0V : 0.9V ~ 5.0V (50mV Step) : 2% (VOUT>1.5V) : 30mV (VOUT1.5V) : 25 A (TYP.) : Less than 0.1A (TYP.) : 65dB (10kHz) : -40OC ~ +85OC : Ceramic capacitor : SOT-23-5
Typical Applications
1
CE
VIN
5
2
VSS
CIN 1F
3
NC
VOUT
4 CL 1F
1
XC6211 Series
Preliminary
High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
Pin Configuration
VIN 5 VOUT 4
Pin Assignment
PIN NUMBER
PIN NAME CE VSS NC VOUT1 VIN
FUNCTION On/Off Control 1 Ground No Connection Output 1 Power Input
SOT-25 1 2
1 CE 2 VSS 3 NC
3 4 5
SOT-23-5 (TOP VIEW)
Block Diagram
VIN CE
ON/OFF Control
each circuit
Current Limit
VOUT
R2 R1
VSS
Voltage Reference
2
XC6211 Series
Preliminary
Product Classification
High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
Selection Guide The following options for the CE pin logic and internal pull-up/down are available: Active 'High' + no pull-down resistor built-in (standard) Active 'High' + 2.0M pull-down resistor built-in (semi-custom) Active 'Low' + no pull-up resistor built-in (semi-custom) Active 'Low' + 2.0M pull-up resistor built-in (semi-custom) Note: *With the pull-up resistor or pull-down resistor built-in types, the supply current during operation will increase by VIN / 2.0M (TYP.) Ordering Information DESIGNATOR
XC6211123456
SYMBOL CE Pin Logic : DESCRIPTION Active 'High' (pull-down resistor built in) Active 'High' (no pull-down resistor built in) Active 'Low' (pull-up resistor built in) Active 'Low' (no pull-up resistor built in) Output Voltage : e.g. 2=3, 3=0, 3.0V Output Voltage: 100mV increments, 2% accuracy e.g. 2=2, 3=8, 4=2 2.80V, 2% Output Voltage : 50mV increments, 2% accuracy e.g. 2=2, 3=8, 4=A 2.85V Package Type : SOT-25 (SOT-23-5) Device Orientation : Embossed Tape : Standard Feed Embossed Tape : Reverse Feed
1
A B C D
2
3
Integer 2
4
A
5 6
M R L
Absolute Maximum Rating
Ta = 25OC PARAMETER Input Voltage Output Current Output Voltage CE Pin Voltage Power Dissipation Operating Ambient Temperature Storage Temperature SYMBOL VIN IOUT VOUT VCE Pd Topr Tstg RATINGS 7.0 500 VSS -0.3 ~ VIN +0.3 VSS -0.3 ~ VIN +0.3 250 -40 ~ +85 -55 ~ +125 UNITS V mA V V mW
O O
C C
3
XC6211 Series
Preliminary
Electrical Characteristics
PARAMETER Output Voltage Maximum Output Current Load Regulation Dropout Voltage Supply Current Standby Current Line Regulation Input Voltage Output Voltage Temperature Characteristics Ripple Rejection Rate Current Limiter Short-circuit Current EN "High" Voltage EN "Low" Voltage EN "High" Current EN "Low" Current NOTE
(NOTE 1) (NOTE 2) (NOTE 3) (NOTE 4) (NOTE 5) (NOTE 6)
High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
XC6211B Series
Ta=25OC SYMBOL VOUT (E) IOUTMAX VOUT Vdif1 Vdif2 IDD Istby VOUT / CONDITIONS IOUT=30mA *1 1mAIOUT100mA IOUT=30mA IOUT=100mA VCE=VIN VCE=VSS VOUT(T)+1.0VVIN7.0V IOUT=30mA 2.0 IOUT=30mA -40OCTopr85OC IOUT=50mA, f=10kHz 100 65 300 50 1.60 VCE=VIN VCE=VSS -0.10 -0.10 VIN 0.25 0.10 0.10 MIN x 0.98 150 15 E-1 E-2 25 0.01 0.01 50 0.10 0.20 6.0 50 TYP VOUT(T) MAX x 1.02
UNITS CIRCUIT
V mA mV mV mV A A %/V V ppm/ O C dB mA mA V V A A
1 1 1 1 2 2 1 1 4 1 1 1 2 2 2
VIN VOUT VIN VOUT / Topr VOUT PSRR Ilim Ishort VCEH VCEL ICEH ICEL
*1 : 150mA (VOUT<1.7V), 240mA (VOUT1.8V) VOUT(T)=Specified Output Voltage VOUT(E)=Effective Output Voltage (I.e. the output voltage when "VOUT(T)+1.0V" is provided at the VIN pin while maintaining a certain IOUT value). Vdif={VIN1(NOTE5)-VOUT1(NOTE4)} VOUT1=A voltage equal to 98% of the Output Voltage whenever an amply stabilized IOUT {VOUT(T)+1.0V} is input. VIN1=The Input Voltage when VOUT1 appears as Input Voltage is gradually decreased. Unless otherwise stated, VIN=VOUT(T)+1.0V
Dropout Voltage
E-1 SYMBOL PARAMETER Vdif 1 E-2 Vdif 2
MAX MIN TYP MAX MIN TYP OUTPUT VOLTAGE 1110 1100 0.90 1100 1100 1200 1150 1.50 550 600 500 500 510 500 200 200 210 200 300 400 1.80 ~ 1.85 280 380 150 1.90 ~ 1.95 100 120 100 350 2.00 ~ 2.05 80 120 240 2.10 ~ 2.25 120 240 330 80 2.30 ~ 2.45 80 120 240 310 2.50 ~ 2.75 70 100 220 290 2.80 ~ 2.95 70 100 220 270 3.00 ~ 3.05 60 90 200 270 3.10 ~ 3.95 60 90 200 250 4.00 ~ 4.95 60 80 180 230 5.00 50 70 160 210 * The input voltage 2.0V (Min.) is needed to operate the series. When the output voltage is less than 2.0V, 2.0V-VOUT(T) of dropout voltage is needed at minimum. 4
XC6211 Series
Preliminary
Test Circuits
Circuit 1
VIN
CIN=1.0F (ceramic)
High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
VOUT
CL=1.0F (ceramic)
A
CE
V V
VSS
V
RL
Circuit 2
A A
VIN
VOUT
OPEN
CE
VSS
Circuit 3
VIN
CIN=1.0F (ceramic)
VOUT
CL=1.0F (ceramic)
CE
VSS
F.F.T
IOUT=10mA
Circuit 4
VIN
VOUT
CL=1.0F (ceramic)
IOUT=50mA
CE
V
VIN={VOUT+1}VDC +0.5Vp-pAC
VSS
V
5
XC6211 Series
Preliminary
Operational Explanation
High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
Output voltage control with the XC6211 series: The voltage divided by resistors R1 & R2 is compared with the internal reference voltage by the error amplifier. The P-Channel MOSFET, which is connected to the VOUT pin, is then driven by the subsequent output signal. The output voltage at the VOUT pin is controlled and stabilized by a system of negative feedback. The current limit circuit and short protect circuit operate in relation to the level of output current. Further, the IC's internal circuitry can be shutdown via the CE pin's signal.
VIN CE
ON/OFF Control
each circuit
Current Limit
VOUT
R2 R1
VSS
Voltage Reference
Low ESR Capacitors
With the XC6211 series, a stable output voltage is achievable even if used with low ESR capacitors as a phase compensation circuit is built-in. In order to ensure the effectiveness of the phase compensation, we suggest that an output capacitor (CL) is connected as close as possible to the output pin (VOUT) and the VSS pin. Please use an output capacitor with a capacitance value of at least 1F. Also, please connect an input capacitor (CIN) of 0.1F between the VIN pin and the VSS pin in order to ensure a stable power input. Current Limiter, Short-Circuit Protection The XC6211 series includes a combination of a fixed current limiter circuit & a foldback circuit which aid the operations of the current limiter and circuit protection. When the load current reaches the current limit level, the fixed current limiter circuit operates and output voltage drops. As a result of this drop in output voltage, the foldback circuit operates, output voltage drops further and output current decreases. When the output pin is shorted, a current of about 50mA flows. CE Pin The IC's internal circuitry can be shutdown via the signal from the CE pin with the XC6211 series. In shutdown mode, output at the VOUT pin will be pulled down to the VSS level via R1 & R2. The operational logic of the IC's CE pin is selectable (please refer to the selection guide on page 3). Note that as the standard XC6211B type's regulator 1 and 2 are both ' High Active/No Pull Down', operations will become unstable with the CE pin open. Although the CE pin is equal to an inverter input with CMOS hysteresis, with either the pull-up or pull-down options, the CE pin input current will increase when the IC is in operation. We suggest that you use this IC with either a VIN voltage or a VSS voltage input at the CE pin. If this IC is used with the correct specifications for the CE pin, the operational logic is fixed and the IC will operate normally. However, supply current may increase as a result of through current in the IC's internal circuitry.
Notes on Use
1 Please use this IC within the stated absolute maximum ratings. The IC is liable to malfunction should the ratings be exceeded. 2 Where wiring impedance is high, operations may become unstable due to noise and/or phase lag depending on output current. Please keep the resistance low between VIN and VSS wiring in particular. 3 Please wire the input capacitor (CIN) and the output capacitor (CL) as close to the IC as possible.
6
XC6211 Series
Preliminary
! Typical Performance Characteristics (1) Output Voltage vs. Output Current XC6211x182
2.0 Output Voltage VOUT (V) VIN=2.8V, CIN=1F(Ceramic), CL=1F(ceramic) Output Voltage VOUT (V)
High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
XC6211x182
CIN=1F(ceramics), CL=1F(ceramics) 2.0 VIN=2.8V 1.5 VIN=4.8V VIN=3.8V
1.5
1.0 Topr = 85OC 25OC - 40OC 0 50 100 150 200 250 300 350 400 Output Current IOUT (mA)
1.0
0.5
0.5 VIN=2.1V 0.0 0 50 100 150 200 250 300 350 400 Output Current IOUT (mA)
0.0
XC6211x252
3.0 Output Voltage VOUT (V) 2.5 2.0 1.5 1.0 0.5 0.0 0 50 100 150 200 250 300 350 400 Output Current IOUT (mA) Topr = 85OC 25OC - 40OC VIN=3.5V CIN=1F(ceramics), CL=1F(ceramics) Output Voltage VOUT (V) 3.0 2.5 2.0 1.5 1.0
XC6211x252
CIN=1F(ceramics), CL=1F(ceramics) VIN=4.5V
VIN=5.5V
VIN=3.5V 0.5 0.0 0 50 100 150 200 250 300 350 400 Output Current IOUT (mA) VIN=2.8V
XC6211x302
4.0 Output Voltage VOUT (V) 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 50 100 150 200 250 300 350 400 Output Current IOUT (mA) Topr = 85OC 25OC - 40OC VIN=4.0V, CIN=1F(ceramic), CL=1F(ceramic) Output Voltage VOUT (V) 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0
XC6211x302
CIN=1F(ceramic), CL=1F(ceramic) VIN=4V VIN=5V VIN=6V VIN=3.3V
50 100 150 200 250 300 350 400 Output Current IOUT (mA)
7
XC6211 Series
Preliminary
High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
(2) Output Voltage vs. Input Voltage XC6211x182
2.0 Output Voltage VOUT (V) 1.8 1.6 1.4 1.2 1.0 1.3 1.8 Input Voltage VIN (V) 2.3 IOUT=0mA =1mA =30mA =100mA Topr=25OC, CIN=1uF (ceramics), CL=1uF(ceramics) Output Voltage VOUT (V) 1.90 1.85 1.80 1.75 1.70 1.65 3.0 IOUT=0mA =1mA =30mA 4.0 5.0 6.0
XC6211x182
Topr=250C, CIN=1uF (ceramics), CL=1uF(ceramics)
Input Voltage VIN (V)
XC6211x252
2.7 Output Voltage VOUT (V) 2.5 2.3 2.1 1.9 1.7 2 2.5 Input Voltage VIN (V) 3 Topr=25OC, CIN=1uF (ceramics), CL=1uF(ceramics) Output Voltage VOUT (V) 2.60 2.55 2.50 2.45 2.40 2.35 3.0
XC6211x252
Topr=25OC, CIN=1uF (ceramics), CL=1uF(ceramics)
IOUT=0mA =1mA =30mA =100mA
IOUT=0mA =1mA =30mA 3.5 4.0 4.5 5.0 5.5 6.0
Input Voltage VIN (V)
XC6211x302
3.2 Output Voltage VOUT (V) 3.0 2.8 2.6 2.4 2.2 2.5 3 Input Voltage VIN (V) 3.5 Topr=25OC, CIN=1uF (ceramics), CL=1uF(ceramics) Output Voltage VOUT (V) 3.10 3.05 3.00 2.95 2.90 2.85 4.0
XC6211x302
Topr=25OC, CIN=1uF (ceramics), CL=1uF(ceramics)
IOUT = 0mA = 1mA = 30mA = 100mA
IOUT = 0mA = 1mA = 30mA 4.5 5.0 5.5 6.0
Input Voltage VIN (V)
8
XC6211 Series
Preliminary
High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
(3) Dropout Voltage vs. Output Current XC6211x182
1.0 Dropout Voltage Vdif (V) 0.8 0.6 0.4 0.2 0.0 0 40 80 120 160 200 Output Current IOUT (mA) Topr= 85OC = 25OC = -40OC CIN=1uF (ceramics), CL=1uF(ceramics) Dropout Voltage Vdif (V) 1.0 0.8 0.6 0.4 0.2 0.0 0 40 80 120 160 200 Output Current IOUT (mA) Topr= 85OC = 25OC = -40OC
XC6211x252
CIN=1uF (ceramics), CL=1uF(ceramics)
XC6211x302
1.0 Dropout Voltage Vdif (V) 0.8 0.6 0.4 0.2 0.0 0 40 80 120 160 200 Topr= 85OC = 25OC = -40OC CIN=1uF (ceramics), CL=1uF(ceramics)
Output Current IOUT (mA)
(4) Supply Current vs. Input Voltage XC6211x182
50.0 Supply Current ISS (A) 40.0 30.0 20.0 10.0 0.0 0 1 2 3 4 5 6 Input Voltage VIN (V) Topr= 85OC = 25OC = -40OC Supply Current ISS (A) 50.0 40.0 30.0 20.0 10.0 0.0 0 1 2 3 4 5 6 Input Voltage VIN (V) Topr= 85OC = 25OC = -40OC
XC6211x252
9
XC6211 Series
Preliminary
High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
(4) Supply Current vs. Input Voltage (Continued) XC6211x302
50.0 Supply Current ISS (A) 40.0 30.0 20.0 10.0 0.0 0 1 2 3 4 5 6 Input Voltage VIN (V) Topr= 85OC = 25OC = -40OC
(5) Output Voltage vs. Ambient Temperature
VIN=2.8V CIN=1uF (ceramics), CL=1uF(ceramics) Output Voltage VOUT (V)
XC6211x182
1.90 Output Voltage VOUT (V) 1.85 1.80 1.75 1.70 1.65 1.60
2.60 2.55 2.50 2.45 2.40 2.35 2.30
VIN=3.2V CIN=1uF (ceramics), CL=1uF(ceramics)
XC6211x252
IOUT = 0mA 1mA 30mA 100mA -40 -20 0 20 40 60 80
O
IOUT = 0mA 1mA 30mA 100mA -40 -20 0 20 40 60 80
O
100
100
Ambient Temperature Topr ( C)
Ambient Temperature Topr ( C)
3.10 Output Voltage VOUT (V) 3.05 3.00 2.95 2.90 2.85 2.80
VIN=4.0V CIN=1uF (ceramics), CL=1uF(ceramics)
XC6211x302
IOUT = 0mA 1mA 30mA 100mA -40 -20 0 20 40 60 80
O
100
Ambient Temperature Topr ( C)
10
XC6211 Series
Preliminary
High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
(6) Supply Current vs. Ambient Temperature XC6211x182
50.0 VIN=2.8V 50.0 40.0 30.0 20.0 10.0 0.0 -40 -20 0 20 40 60 80 100 -40 -20 0 20 40 60
O
XC6211x252
VIN=3.5V
Supply Current ISS (A)
40.0
30.0
20.0
10.0
0.0 Ambient Temperature Topr (OC)
Supply Current ISS (A)
80
100
Ambient Temperature Topr ( C)
XC6211x302
50.0 Supply Current ISS (A) 40.0 30.0 20.0 10.0 0.0 -40 -20 0 20 40 60 80 100 Ambient Temperature Topr (OC) VIN=4.0V
11
XC6211 Series
Preliminary
High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
(7) Input Transient Response XC6211x182
5 4 Input Voltage VIN (V) 3 2 1 0 -1 Time (40usec/div) Output Voltage Input Voltage tr = tf = 5use, CL=1uF (ceramics), IOUT=1mA 1.88 Output Voltage VOUT (V) 1.86 1.84 1.82 1.80 1.78 1.76 5 4 Input Voltage VIN (V) Input Voltage 3 2 1 0 -1 Time (40usec/div) Output Voltage 1.84 1.82 1.80 1.78 1.76
XC6211x182
tr = tf = 5use, CL=1uF (ceramics), IOUT=10mA 1.88 1.86 Output Voltage VOUT (V) Output Voltage VOUT (V) Output Voltage VOUT (V)
XC6211x182
5 Input Voltage VIN (V) 4 3 2 1 0 -1 Time (40usec/div) Output Voltage Input Voltage tr = tf = 5use, CL=1uF (ceramics), IOUT=100mA 1.88 1.86 1.84 1.82 1.80 1.78 1.76 Output Voltage VOUT (V) 5 4 Input Voltage VIN (V) 3 2 1
XC6211x252
tr = tf = 5use, CL=1uF (ceramics), IOUT=1mA 2.58 2.56 2.54 2.52 2.50 Output Voltage 0 -1 Time (40usec/div) 2.48 2.46
Input Voltage
XC6211x252
5 4 Input Voltage VIN (V) 3 2 1 Output Voltage 0 -1 Time (40usec/div) 2.48 2.46 tr = tf = 5use, CL=1uF (ceramics), IOUT=10mA 2.58 2.56 2.54 2.52 2.50 Output Voltage VOUT (V) 5 4 Input Voltage VIN (V) 3 2 1 0 -1
XC6211x252
tr = tf = 5use, CL=1uF (ceramics), IOUT=100mA 2.58 2.56 2.54 2.52 2.50 2.48 2.46 Time (40usec/div)
Input Voltage
Input Voltage
Output Voltage
12
XC6211 Series
Preliminary
High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
(7) Input Transient Response (Continued) XC6211x302
6 5 Input Voltage VIN (V) Input Voltage 4 3 2 1 0 Time (40usec/div) Output Voltage 3.04 3.02 3.00 2.98 2.96 tr = tf = 5use, CL=1uF (ceramics), IOUT=1mA 3.08 Output Voltage VOUT (V) 3.06 6 5 Input Voltage VIN (V) 4 3 2 1 0 Time (40usec/div) Output Voltage Input Voltage
XC6211x302
tr = tf = 5use, CL=1uF (ceramics), IOUT=10mA 3.08 3.06 3.04 3.02 3.00 2.98 2.96 Output Voltage VOUT (V) Output Current IOUT (mA)
XC6211x302
6 5 Input Voltage VIN (V) Input Voltage 4 3 2 1 0 Time (40usec/div) 3.04 3.02 3.00 2.98 2.96 tr = tf = 5use, CL=1uF (ceramics), IOUT=100mA 3.08 3.06 Output Voltage VOUT (V)
Output Voltage
(8) Load Transient Response XC6211x182
2.0 Output Voltage VOUT (V) 1.9 Output Voltage 200 150 100 50mA 10mA 1.4 Time (40usec/div) 0 1.4 Time (40usec/div) 0 Output Current 50 1.8 1.7 1.6 1.5 VIN=2.8V, tr = tf = 5use, CIN=1uF (ceramics), CL=1uF (ceramics) 300 Output Current IOUT (mA) 250 2.0 Output Voltage VOUT (V) 1.9 Output Voltage 200 150 Output Current 100mA 50mA 100 50 1.8 1.7 1.6 1.5
XC6211x182
VIN=2.8V, tr = tf = 5use, CIN=1uF (ceramics), CL=1uF (ceramics) 300 250
13
XC6211 Series
Preliminary
High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
(8) Load Transient Response (Continued) XC6211x182
2.0 1.9 Output Voltage 200 150 Output Current 100mA 50 10mA 1.4 Time (40usec/div) 0 2.1 Time (40usec/div) 100 1.8 1.7 1.6 1.5 VIN=2.8V, tr = tf = 5use, CIN=1uF (ceramics), CL=1uF (ceramics) 300 Output Current IOUT (mA) 250 2.7 2.6 Output Voltage OUT (V) Output Voltage 2.5 2.4 2.3 Output Current 2.2 50mA 10mA 0 50 200 150 100
XC6211x252
VIN=3.5V, tr = tf = 5use, CIN=1uF (ceramics), CL=1uF (ceramics) 300 250
Output Voltage VOUT (V)
XC6211x252
2.7 Output Voltage VOUT (V) 2.6 2.5 2.4 Output Current 2.3 2.2 2.1 Time (40usec/div) 100mA 50mA Output Voltage VIN=3.5V, tr = tf = 5use, CIN=1uF (ceramics), CL=1uF (ceramics) 300 Output Current IOUT (mA) 250 200 150 100 50 0 2.7 Output Voltage VOUT (V) 2.6
XC6211x252
VIN=3.5V, tr = tf = 5use, CIN=1uF (ceramics), CL=1uF (ceramics) 300 Output Current IOUT (mA) Output Current IOUT (mA) 250 Output Voltage 200 150 Output Current 100 100mA 50 10mA 2.1 Time (40usec/div) 0
2.5 2.4 2.3 2.2
XC6211x302
VIN=4.0V, tr = tf = 5use, 3.2 CIN=1uF (ceramics), CL=1uF (ceramics) 300 Output Voltage VOUT (V) Output Current IOUT (mA) 3.1 Output Voltage 3.0 2.9 2.8 2.7 2.6 Time (40usec/div) 50mA 10mA 0 2.6 Output Current 200 150 100 50 250 3.2 Output Voltage VOUT (V) 3.1
XC6211x302
VIN=4.0V, tr = tf = 5use, CIN=1uF (ceramics), CL=1uF (ceramics) 300 250 Output Voltage 200 150 100mA 50mA 50 0 Time (40usec/div) Output Current 100
3.0 2.9 2.8 2.7
14
Output Current IOUT (mA)
XC6211 Series
Preliminary
High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
(8) Load Transient Response (Continued) XC6211x302
3.2 3.1 Output Voltage 3.0 2.9 Output Current 2.8 2.7 10mA 2.6 Time (40usec/div) 0 100mA 100 50 200 150 VIN=4.0V, tr = tf = 5use, CIN=1uF (ceramics), CL=1uF (ceramics) 300 250
(9) Ripple Rejection Rate XC6211x182
100 Ripple Rejection Rate RR (dB) 90 80 70 60 50 40 30 20 10 0 0.01 0.1 1 10 100 Ripple Frequency f (kHz) VIN=2.8V, DC + Vp-pAC, IOUT=50mA, CL=1uF (ceramics) Ripple Rejection Rate RR (dB) 100 90 80 70 60 50 40 30 20 10 0 0.01 0.1 1 10 100 Ripple Frequency f (kHz) VIN=3.5V, DC + Vp-pAC, IOUT=50mA, CL=1uF (ceramics)
Output Current IOUT (mA)
Output Voltage VOUT (V)
XC6211x252
XC6211x302
100 Ripple Rejection Rate RR (dB) 90 80 70 60 50 40 30 20 10 0 0.01 0.1 1 10 Ripple Frequency f (kHz) 100 VIN=3.0V, DC + Vp-pAC, IOUT=50mA, CL=1uF (ceramics)
15

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