G5762 Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – 2A Step-down DC/DC

Global Mixed-mode Technology Inc. _G5762/G5762A
2A Step-down DC/DC
Features
„ 2A Output Current
„ 0.15Ω Internal Power MOSFET Switch
„ Stable with Low ESR Output Ceramic Capaci-
tors
„ Up to 95% Efficiency
„ 30µA Shutdown Mode
„ Fixed 385kHz Frequency
„ Thermal Shutdown
„ Cycle-by-Cycle Over Current Protection
„ Wide 6.5V to 24V Operating Input Range
„ Output Adjustable from 1.22V to 21.6V(G5762)
„ Output Adjustable from 0.92V to 21.6V(G5762A)
„ Available in SOP-8 Package
Applications
„ PC Monitors
„ DSL Modems
„ Distributed Power Systems
„ Pre-Regulator for Linear Regulators
General Description
The G5762 is a monolithic step-down switch mode
regulator with a built in internal power MOSFET. It
achieves 2A continuous output current over a wide input
supply range with excellent load and line regulation.
Current mode operation provides fast transient re-
sponse and eases loop stabilization.
Fault condition protection includes cycle-by-cycle cur-
rent limiting, output short circuit protection and thermal
shutdown. In shutdown mode the regulator draws
30µA of supply current. Programmable soft-start over-
writes the internal soft-start for various requirement of
output power up ramp and minimizes the inrush supply
current at initial startup.
The G5762 requires a minimum number of readily
available standard external components. It is available
in a SOP-8 package.
Ordering Information
ORDER
NUMBER
G5762P11U
G5762AP11U
Note: P1: SOP-8
1: Bonding Code
U : Tape & Reel
MARKING
G5762
G5762A
TEMP.
RANGE
-40°C to +85°C
-40°C to +85°C
PACKAGE
(Green)
SOP-8
SOP-8
Pin Configuration
G5762/G5762A
BS ₁
8 SS
IN 2
7 EN
LX ₃
6 COMP
GND ₄
SOP-8
5 FB
Typical Application Circuit
INPUT
6.5V to 24V
OFF _ON
C1
10µF
35V
C4
10nF
C5
10nF
2
1
IN
7
EN
BS
3
LX
G5762
8
SS
FB ⁵
GND
4
COMP
6
C6
OPEN
C3
3.9nF
R3
3.9kΩ
L1
15µH
D1 ^R1
10.5kΩ
1%
R2
10kΩ
1%
OUTPUT
2.5V/2A
C2
22µF/35V
CERAMIC
INPUT
6.5V to 24V
OFF _ON
C1
10µF
35V
C4
10nF
C5
10nF
2
1
IN
7
EN
BS
3
LX
G5762A
8
SS
FB ⁵
GND
COMP
4
6
C6
OPEN
C3
3.9nF
R3
3.9kΩ
L1
15µH
D1 ^R1
4.7kΩ
1%
R2
24kΩ
1%
OUTPUT
1.1V/2A
C2
22µF/35V
CERAMIC
Ver: 0.1
Aug 24, 2009
TEL: [phone]
http://www.gmt.com.tw
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