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G5675 Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – 5A Synchronous Step-Down DC/DC | |||
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Global Mixed-mode Technology Inc.
G5675
5A Synchronous Step-Down DC/DC
Features
5A Output Current*
75m⦠Internal Power MOSFET Switch
Stable with Low ESR Output Ceramic Capacitors
or POSCAPs
Less Than 1µA Shutdown Current
1MHz Switching Frequency
Power Good Opened Drain Output
Thermal Shutdown
Cycle-by-Cycle Over Current Protection
Output Adjustable from 0.6V to VIN
Available in TDFN3X3-10 Package
*The output voltage should be less then 1.8V. If the Vout set-
ting is larger then 1.8V, the output current will be less then
5A because of thermal protection.
Applications
NB
Distributed Power Systems
Pre-Regulator for Linear Regulators
General Description
The G5675 is a monolithic step-down switch mode
regulator with a built in internal power MOSFET. It
achieves a continuous output current at 1MHz switch-
ing frequency with excellent load and line regulation.
Current mode operation provides fast transient re-
sponse and eases of loop stabilization. Power good
function delivers power supply ready signal to the load.
Fault condition protection includes cycle-by-cycle cur-
rent limiting, output short circuit protection and thermal
shutdown. In shutdown mode the regulator ground
current is controlled less than 1µA. An Internal
soft-start minimizes the inrush supply current at initial
startup.
The G5675 requires a minimum number of readily
available standard external components. It is available
in TDFN3X3-10 package.
Ordering Information
ORDER
NUMBER
G5675RE1U
Note: RE: TDFN3X3-10
1 : Bonding Code
U : Tape & Reel
Pin Configuration
MARKING
5675
TEMP.
RANGE
-40°C to +85°C
PACKAGE
(Green)
TDFN3X3-10
Typical Application Circuit
LX 1
LX 2
LX 3
PG 4
EN 5
G5675
Thermal
Pad
10 PVIN
9 PVIN
8 SVIN
7 NC
6 FB
TDFN3X3-10
Note: Recommend connecting the Thermal Pad
to the Ground for excellent power dissipation.
VIN
20µF
10â¦
0.1µF
OFF ON
G5675
PVIN
LX
SVIN
FB
EN
PG
PGND GND
2.2µH
R1
40kâ¦
VOUT
1.8V/5A
22µFx2
R2
20kâ¦
10kâ¦
VIN
Ver: 0.1
Jul 22, 2011
TEL: 886-3-5788833
http://www.gmt.com.tw
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