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GM34063 fiches techniques PDF

Gamma Microelectronics - 1.5A DC-TO-DC CONVERTER CONTROL CIRCUIT

Numéro de référence GM34063
Description 1.5A DC-TO-DC CONVERTER CONTROL CIRCUIT
Fabricant Gamma Microelectronics 
Logo Gamma Microelectronics 





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GM34063 fiche technique
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AA
MICROELECTRONICS
Power Management
GM34063
1.5A DC-TO-DC CONVERTER CONTROL CIRCUIT
Description
GM34063 has all the functions required for DC-to-DC
converters: an internal temperature- compensated ref-
erence, comparator, controlled duty cycle oscillator
with an active current limit circuit, driver, and high-
current output switch.
GM34063 is designed for step-down, step-up and volt-
age-inverting applications by using a minimum number
of external components.
Features
3.0V to 40V input
Adjustable Output Voltage
Current Limiting
Output Switch Current to 1.5A
Low Standby Current
Operating Frequency to 100kHz
Precision 2% Reference
Application
CD-ROM
Motherboards
SMPS Power Supply
Battery Chargers
DSL Modem
SCHEMATIC DIAGRAM
8
Driver Collector
7
Ipk Sense
6
VCC
5
Comparator
Inverting Input
Ipk Oscillator
CT
SQ
Q2
R
100
Comparator
+
-
1.25V
Reference
Regulator
(Bottom View)
1
Switch Collector
Q1
2
Switch Emitter
3
Timing Capacitor
4
GND
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