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AP2006
200KHz, PWM Buck DC/DC & Linear Controller Features
- Provides two regulated voltages -one PWM Controller( Drive PMOS) -one Linear Controller (Drive NPN and NMOS) - Adjustable version: 1.23+/- 2.5%. - 250KHz +10% fixed switching frequency - Thermal-shutdown and current-limit protection - SS/EN Soft-Start/Enable Function. - Operating voltage can be up to 22V - Low power standby mode - Pb-Free Package: SOP8,DIP8
General Descriptions
The AP2006 series are monolithic IC's containing a PWM and a linear power controller. The PWM driving a external PMOS. Due to the reduction of the number of external components, board space can be saved easily. The external shutdown function can be controlled by logic level. It switchs the IC into the standby mode. The internal compensation provides a good line and load regulation without external component. Short circuit protection prohibits the over current in the output switchs. The AP2006 series operate at the switching frequency of 250KHz. Therefore, it is able to use the smaller sized filters than what used to be used with the lower frequency switching regulators. Other features include a guaranteed +3% tolerance on output voltage under specified input voltage and output load conditions, and +20% on the oscillator frequency. The linear controller is able to drive an external NPN transistor, with 30mA current limit pre-driver. The ICs are available in a standard SOP8/DIP8 package.
Applications
- Simple High-efficiency step-down regulator - On-card switching regulators - XDSL...
Pin Assignments
Pin Descriptions
Name Description Operating voltage input Short circuit protect Connecting PMOS's Gate Ground Output voltage feedback control Soft-start/Enable function Linear Controller Driving External NPN
(Top View) SS/EN 1 SCP 2 GND 3 OUT1 4
SOP-8/DIP-8 AP2006
VCC SCP
8 OUT2 7 FB2 6 FB1 5 VCC
OUT1 GND FB1 FB2 SS/EN OUT2
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product.
Rev.1.1 Nov 17, 2004 1/7
AP2006
200KHz, PWM Buck DC/DC & Linear Controller Ordering Information
AP2006 X X
Package
S : SOP-8L N : DIP-8L
Packing
Blank : Tube A : Taping
Block Diagram
SS/EN
VCC
Current Source bias
1.23V Reference
2.5V Regulator
Start up
+
10A
SCP
1.5V
+ _
+
FB2
Amp
_
LPF
Anachip Corp. www.anachip.com.tw 2/7
_
FB1
_
Amp
LPF
+
Comp
Pre-driver
OUT1
250kHz OSC.
GND
Current Limit Buffer
OUT2
EN
Rev. 1.1 Nov 17, 2004
AP2006
200KHz, PWM Buck DC/DC & Linear Controller Absolute Maximum Ratings
Symbol VCC VEN VFB VOUT1/2 Parameter Supply Voltage EN Pin Input Voltage Feedback Pin Voltage Output Voltage to Ground SO8 Power Dissipation DIP8 Storage Temperature Operating Temperature Operating Voltage Rating 22 -0.3V22 -0.3V22 -0.3V22 400 1000 -65 to 150 -40 to +125o 4.5 to 20 Unit V V V V
PD TST TOP VOP
mW
o o
C C V
Electrical Characteristics (All Output Voltage Versions & Channels)
Unless otherwise specified AP2006, Vin=12V, ILOAD = 0.2A.
Symbol Parameter VCC Supply Voltage IB1/2 Feedback Bias Current FOSC Oscillator Frequency
Conditions
VFB1/2=1.23V(FB1,adj Version)
Min. 4.5 200
Typ. 100 250
Max. 22 1000 300
Unit V nA KHz
VSAT2 DC IQ VIL IL ICL2 VFB1/2 VUT VLWT VHT VIT VSTB VLT ISCP ILEAK IDRV VSAT ISC VSS ISS
IOUT=20mA(no external NPN or N-MOS) VFB1=0V force driver on Max. Duty Cycle(ON) VFB1 =0V force driver on Min. Duty Cycle(OFF) VFB1 =12V force driver off Quiescent Current (VCC) VFB1/2=12V force driver off Shutdown Logic Input Threshold Low (regulator OFF) Voltage High (regulator ON) 1.0 EN pin Input Current VLOGIC =0.5V (regulator OFF) Current Limit (OUT2) VCC=5V, VOUT2=VFB2=0V 25 AP2006 OUT1 Feedback 1.20 4.75V < VCC1 < 20V Voltage 3.0V < VCC2 < 20V AP2006 OUT2 Feedback 1.17 Voltage Upper Threshold Voltage (VCC) IO(REF) = 0.1mA Lower Threshold Voltage (VCC) TA = 25C Hysteresis (VCC) Input Threshold Voltage (SCP) TA = 25C 0.60 Standby Voltage (SCP) No pull up 100 Latched Input Voltage (SCP) No pull up Input (source) Current (SCP) VI = 0.7V, TA = 25C -5 Leakage current (OUT1) FB=12V Sink Current (OUT1) VIN= 12V Source Current (OUT1) VIN= 12V Output Saturation Voltage IO = 10 mA (OUT1) Short-circuit Output Current VO = 6V, VFB=12V (OUT1) Soft-start Voltage Constant Charge Current Saturation Voltage (VCC-VOUT2)
1.2 100 0 6 20 1.23 1.20 4.3 4.1 200 0.67 130 50 -10 300 200 1.0 120 2.4 10
0.2 1.26
V % % mA V uA mA V
1.23 0.75 160 100 -20 10 1.5 V V mV V mV mV A A mA mA V mA V A
Anachip Corp. www.anachip.com.tw 3/7
Rev. 1.1 Nov 17, 2004
AP2006
200KHz, PWM Buck DC/DC & Linear Controller Typical Application Circuit
(1) VOUT2 Drive NPN
V
CC2
=3.3V
VOUT2 =1.8V 220F R1 50 R2 100 100nF 1 2 1nF 3 V CC1 470 F PMOS VOUT1=3.3V 220 F AP2006 220F 4 GND OUT1 FB1 VCC 6 5 V SS/EN SCP OUT2 FB2 8 7
CC1
R3 170 R4 100
47uH Schottcky
AP2006=> VOUT1=1.25*(1+R3/R4) VOUT2=1.25*(1+R1/R2)
Anachip Corp. www.anachip.com.tw 4/7
Rev. 1.1 Nov 17, 2004
AP2006
200KHz, PWM Buck DC/DC & Linear Controller Typical Application Circuit (Continued)
(2) VOUT2 Drive NMOS
V NMOS R1 50 R2 100
CC2
=3.3V
VOUT2 =1.8V 220F
100nF
1 2
SS/EN SCP GND OUT1 AP2006
OUT2 FB2 FB1 VCC
8 10K 7 6 5 V
1nF 3 V CC1 4
CC1
470 F PMOS VOUT1=3.3V 220 F 220F
R3 170 R4 100
47uH Schottcky
AP2006=> VOUT1=1.25*(1+R3/R4) VOUT2=1.25*(1+R1/R2)
Anachip Corp. www.anachip.com.tw 5/7
Rev. 1.1 Nov 17, 2004
AP2006
200KHz, PWM Buck DC/DC & Linear Controller Marking Information
( Top View ) 8 5
Logo Part number AP2006 YY WW X ID code: internal Xth week: 01~52 Year: "01" = 2001 "02" = 2002 ~
1
4
Package Information
(1) SOP-8L
E
H
L VIEW "A" D 7 (4X) A2 A 0.015x45
7 (4X)
A1
e
B y
C
VIEW "A"
Symbol
A A1 A2 B C D E e H L y
Dimensions In Millimeters Min. Nom. Max. 1.40 1.60 1.75 0.10 0.25 1.30 1.45 1.50 0.33 0.41 0.51 0.19 0.20 0.25 4.80 5.05 5.30 3.70 3.90 4.10 1.27 5.79 5.99 6.20 0.38 0.71 1.27 0.10 0O 8O
Dimensions In Inches Min. Nom. Max. 0.055 0.063 0.069 0.040 0.100 0.051 0.057 0.059 0.013 0.016 0.020 0.0075 0.008 0.010 0.189 0.199 0.209 0.146 0.154 0.161 0.050 0.228 0.236 0.244 0.015 0.028 0.050 0.004 0O 8O
Anachip Corp. www.anachip.com.tw 6/7
Rev. 1.1 Nov 17, 2004
AP2006
200KHz, PWM Buck DC/DC & Linear Controller
(2) DIP-8L
D
E-PIN O0.118 inch
E1
E 15 (4X) PIN #1 INDENT O0.025 DEEP 0.006-0.008 inch
7 (4X) eB A2 A
C
L
B S e B1 B2
Symbol
A A1 A2 B B1 B2 C D E E1 e L eB S
Dimensions in millimeters Min. Nom. Max. 5.33 0.38 3.1 3.30 3.5 0.36 0.46 0.56 1.4 1.52 1.65 0.81 0.99 1.14 0.20 0.25 0.36 9.02 9.27 9.53 7.62 7.94 8.26 6.15 6.35 6.55 2.54 2.92 3.3 3.81 8.38 8.89 9.40 0.71 0.84 0.97
A1
Dimensions in inches Min. Nom. Max. 0.210 0.015 0.122 0.130 0.138 0.014 0.018 0.022 0.055 0.060 0.065 0.032 0.039 0.045 0.008 0.010 0.014 0.355 0.365 0.375 0.300 0.313 0.325 0.242 0.250 0.258 0.100 0.115 0.130 0.150 0.330 0.350 0.370 0.028 0.033 0.038
Anachip Corp. www.anachip.com.tw 7/7
Rev. 1.1 Nov 17, 2004

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