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What is G5201?

This electronic component, produced by the manufacturer "Global Mixed-mode Technology", performs the same function as "5V/12V Input Voltage-Mode Buck PWM Controller".


G5201 Datasheet PDF - Global Mixed-mode Technology

Part Number G5201
Description 5V/12V Input Voltage-Mode Buck PWM Controller
Manufacturers Global Mixed-mode Technology 
Logo Global Mixed-mode Technology Logo 


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Global Mixed-mode Technology Inc.
G5201
5V/12V Input Voltage-Mode Buck PWM Controller
Features
„ Drives Two N-Channel MOSFETs
„ Operates at 5V to 12V Supply Voltage
„ Voltage-Mode PWM Control
„ Fast Transient Response
„ 0.8V, 2% Accuracy Reference Voltage
„ Internal Soft Start
„ Constant 300kHz Switching Frequency
„ Over-Current Fault Monitors by Using
Low-Side MOSFET RDS(ON)
„ Output Under-Voltage Protection
Applications
„ High Power DC-DC Regulators
„ Low-Voltage Distributed Power Supplies
Ordering Information
ORDER
NUMBER
G5201P11U
Note: P1: SOP-8
1: Bonding Code
U: Tape & Reel
MARKING
G5201
General Description
The G5201 provides complete control and protection
for a DC-DC converter for high power applications. It is
designed to drive two N-channel MOSFETs in a syn-
chronous-rectified buck topology. The G5201 inte-
grates all of the control, and protection functions into a
single package.
The G5201 provides simple, single feedback loop,
voltage-mode control with fast transient response. It
includes a 300kHz free-running triangle-wave oscilla-
tor. The error amplifier features a 15MHz gain-band-
width product which provides high converter band-
width for fast transient performance. The resulting
PWM duty ratio ranges from 0% to 80%. The refer-
ence voltage is 0.8V, 2% accuracy.
The G5201 has internal soft start and executes cy-
cle-by-cycle current limit during soft start interval. The
G5201 monitors the current by using the RDS(ON) of the
low-side MOSFET which eliminates the need for a
current sensing resistor. The under-voltage protection
function monitors voltage at FB pin. The over-current
and under-voltage events after soft-start interval trig-
ger hiccup mode protection.
TEMP.
RANGE
-40°C~ +85°C
PACKAGE
(Green)
SOP-8
Pin Configuration
Typical Application Circuit
BOOT 1
UGATE 2
GND 3
LGATE 4
G5201
SOP-8
8 LX
7 OCSET
6 FB
5 VCC
ROCSET
SHDN
G5201
10Ω
VCC
4.7µF
BOOT
OCSET
FB
UGATE
LX
LGATE
GND
5V~12V
3V~12V
220µF
0.1µF
6µH
VO=2.5V
2000µF
68Ω
32Ω
10nF
Ver: 1.5
Jan 24, 2011
TEL: 886-3-5788833
http://www.gmt.com.tw
1


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1. Buck PWM Controller - GMT

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Featured Datasheets

Part NumberDescriptionMFRS
G5201The function is 5V/12V Input Voltage-Mode Buck PWM Controller. Global Mixed-mode TechnologyGlobal Mixed-mode Technology

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