G5321

G5321
Global Mixed-mode Technology
Current Mode Boost Controller
Features
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General Description
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
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 features include programmable soft start, over current
protection with automatic retry, programmable oscillator frequency and integrated Low-side driver.
Current mode control provides improved transient
response and simplified loop compensation.
Applications
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LED Lighting
Industrial Control Systems
Battery Powered Systems
Ordering Information
ORDER
NUMBER
MARKING
TEMP.
RANGE
PACKAGE
(Green)
G5321P71U
G5321
-40°C to +125°C
MSOP-10
Note:P7: MSOP-10
1: Bonding Code
U: Tape & Reel
Pin Configuration
Typical Application Circuit
VIN
RVDD
10Ω
G5321
RC
1
10
1
VDD
SS
2
9
BP
SHDN
3
8
GDRV
COMP
4
7
ISNS
FB
5
6
GND
2
3
4
MSOP-10
5
VDD
RC
SS
BP
G5321
SHDN
GDRV
COMP
ISNS
FB
GND
CVDD
1µF
10
VOUT
9
8
7
6
RSENSE
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.1
Aug 21, 2012
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