G5321 Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – Current Mode Boost Controller

Global Mixed-mode Technology
G5321
Current Mode Boost Controller
Features
„ Input Voltage: 4.5V to 27V
„ Adjustable Oscillator Frequency
„ Fixed Frequency Current Mode Control
„ Integrated Low-Side Driver
„ ^{Programmable Soft Start}
„ ^{Over Current Protection}
„ ^{Reference 700mV}
„ Low Power Shutdown Function
Applications
„ ^{LED Lighting}
„ Industrial Control Systems
„ Battery Powered Systems
Ordering Information
ORDER
NUMBER
G5321P71U
Note:P7: MSOP-10
1: Bonding Code
U: Tape & Reel
MARKING
G5321
General Description
The G5321 is a wide input voltage (4.5V to 27V),
non-synchronous boost controller. It is suitable for
topologies including boost, flyback, SEPIC and
various LED Driver applications which require a
grounded source N-channel FET. The device fea-
tures include programmable soft start, over current
protection with automatic retry, programmable os-
cillator frequency and integrated Low-side driver.
Current mode control provides improved transient
response and simplified loop compensation.
TEMP.
RANGE
-40°C to +125°C
PACKAGE
(Green)
MSOP-10
Pin Configuration
Typical Application Circuit
RC 1
SS 2
SHDN 3
COMP 4
FB 5
G5321
MSOP-10
10 VDD
9 BP
8 GDRV
7 ISNS
6 GND
VIN
RVDD
10Ω
1
RC
VDD ¹⁰
2
SS
9
BP
G5321
3 _SHDN
GDRV ⁸
4
COMP
ISNS ⁷
5 _FB
GND ⁶
CVDD
1µF
RSENSE
VOUT
Ver: 0.1
Aug 21, 2012
TEL: [phone]
http://www.gmt.com.tw
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