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SGSC34063
Elektronische Bauelemente
RoHS Compliant Product
Universal DC To DC Converter
SOP-8
Description
The SGSC34063 is a monolithic regulator subsystem, intended for use as DC to DC conv erter. This device contains a temperature put switch. It can be used for step down, compensated band gap reference, a duty-cycle control oscillator, driver and high current out step-up or inverting switching regulators as well as for series pass regulators.
6.20 5.80
0.40 0.90
0.19 0.25
45
o
0.375 REF
0.25
3.80 4.00
0.35 0.49
1.27 Typ. 4.80 5.00 0.10 0.25
0 o 8
o
1.35 1.75
Features
*Operation from 3.0V to 40V. *Short circuit current limiting. *Low standby current. *Output switch current of 1.5A without external transistors. *Frequency of operation from 100Hz to 100kHz. *Step-up, step-down or inverting switch regulators.
Date Code
Dimensions in millimeters
8
7
6
5
34063
1
2
3
4
Pin Configuration & Representative Schematic Diagram
rogrammed by pacitor CT to ground .Operation 500kHz nts up to
This is the reference output .It provides charging current for capacitor CT
http://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 1 of 5
SGSC34063
Elektronische Bauelemente
Universal DC To DC Converter
Absolute Maximum Ratings at Ta = 25 C
Parameter Operating Junction Temperature Operating Ambient Temperature Range Storage Temperature Range Supply Voltage Comparator Input Voltage Range Switch Collector Voltage Switch Emitter Voltage Switch Collector to Emitter Voltage Switch Current Power Dissipation Thermal Resistance Symbol Tj Ta Tstg Vcc Vi(comp) Vc(sw) Ve(sw) Vce(dr) Isw Pd RJA Value 150 0 ~ 70 -65 ~ 150 40 -0.3 ~ +40 40 40 40 1.5 625 160 Unit C C C V V V V V A mW C / W
Electrical Characteristics (0 COTAO70C, Vcc=5V unless otherwise specified)
Parameter Oscillator Frequency Charging Current Discharging Current Discharge to Chart Current Ratio Current Limit Sense Voltage Output Switch Saturation Voltage 1 (note) Saturation Voltage 2 (note) DC Current Gain (note) Collect Off State Current (note) Comparator Vcc = 5V, Ta = 25C Threshold Voltage Vth 34063A 34063B 34063C Threshold Voltage Line Regulation Input Bias Current Total Device Vcc = 5 ~ 40V, Ct = 0.001, Pin7 to Vcc, Vc > Vth, Pin2 = GND Vth Ibias Vcc = 3 ~ 40V Vi = 0V 1.241 1.237 1.225 1.25 1.25 1.25 2 50 1.259 1.262 1.275 5 400 V V V mV nA Vce(sat)1 Vce(sat)2 Gi(DC) Ic(off) Isw = 1A, Vc(driver) = Vc(sw) Isw = 1A, Vc(driver) = 50mA Isw = 1A, Vce = 5V, Ta = 25C Vce = 40V, Ta = 25C 50 0.95 0.45 180 0.01 100 uA 1.3 0.7 V V fosc Ichg Idischg K Vsense VPin5=0 V, CT=1.0 nF, Ta=25C Vcc = 5 to 40, Ta = 25C Vcc = 5 to 40, Ta = 25C Pin7 to Vcc, Ta = 25C Ichg = Idischg, Ta = 25C 24 22 140 5.2 250 42 31 190 6.1 300 48 42 260 7.5 350 mV kHz uA uA Symbol Test Conditions Min. Typ. Max. Unit.
Supply Current
Icc
2.7
4
mA
Note : Output switch tests are performed under pulsed conditions to minimize power dissipation.
ht tp://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 2 of 5
SGSC34063
Elektronische Bauelemente
Universal DC To DC Converter
Characteristics Curve
(UVLO)
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Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 3 of 5
SGSC34063
Elektronische Bauelemente
Application Circuit
(1) Step-Up Converter
Universal DC To DC Converter
Test Line Regulation Load Regulation Output Ripple Efficiency Output Ripple With Optional Filter
Conditions Vin = 8V to 16V, Io = 175mA Vin = 12V, Io = 75mA to 175mA Vin = 12V,Io = 175Ma Vin = 12V, Io = 175mA Vin = 12V, Io = 175mA
30mV = 0.05% 10mV = 0.017% 400mVp-p 87.7% 40mVp-p
Results
External Current Boost Connections for Ic Peak Greater than 1.5A
External NPN Switch
External NPN Saturated Switch (NOTE)
NOTE
If the switch is driven into hard saturation (non-Darlington configuration) at low switch currents ( 300mA) and high driver currents ( 30mA) it may take up to 2.0 us to come out of saturation. This condition will shorten the off time at frequencies 30kHz, and is magnified at high temperatures. This condition does not occur with a Darlington configuration, since the output switch cannot saturate. If a non-Darlington configuration is used, the following output drive condition is recommended.
http://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 4 of 5
SGSC34063
Elektronische Bauelemente
Universal DC To DC Converter
(2) Step-Down Converter
Test Line Regulation Load Regulation Output Ripple Short Circuit Current Efficiency Output Ripple With Optional Filter
Conditions Vin = 15V to 25V, Io = 50mA Vin = 25V, Io = 50mA to 500mA Vin = 25V,Io = 500mA Vin = 25V, RL = 0.1 Vin = 25V, Io = 500mA Vin = 25V, Io = 500mA
12mV = 0.12% 3mV = 0.03% 120mVp-p 1.1A 83.7% 40mVp-p
Results
External Current Boost Connections for Ic Peak Greater than 1.5A
External NPN Switch
External PNP Saturated Switch
ht tp://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 5of 5
SGSC34063
Elektronische Bauelemente
Voltage Inverting Converter
Universal DC To DC Converter
Test Line Regulation Load Regulation Output Ripple Short Circuit Current Efficiency Output Ripple With Optional Filter
Conditions Vin = 4.5V to 6.0V, Io = 100mA Vin = 5V, Io = 10mA to 100mA Vin = 5V,Io = 100mA Vin = 5V, RL = 0.1 Vin = 5V, Io = 100mA Vin = 5V, Io = 100mA
Results 3mV = 0.12% 0.022V = 0.09% 500mVp-p 910mA 62.2% 70mVp-p
External Current Boost Connections for Ic Peak Greater than 1.5A
External NPN Switch
External PNP Saturated Switch
ht tp://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 6 of 6

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