RAA207703GBM Datasheet, PDF (1/18 Pages) Renesas Technology Corp – Synchronous Buck Regulator with Internal Power MOSFETs

Preliminary Datasheet
RAA207703GBM/7704GBM/7705GBM
Synchronous Buck Regulator with
Internal Power MOSFETs
R07DS0892EJ0001
Rev.0.01
Nov 29, 2012
Description
The RAA207703GBM is monolithic synchronous buck regulator with power MOSFETs in extremely small package.
The RAA207703GBM delivers high output current by small Rds(on) Power MOSFETs. Constant on time control
architecture provides fast transient response, and minimize external components. The RAA207703GBM operates skip
mode at light load, it provides high efficiency in all load condition. The RAA207703GBM incorporates internal 5V
LDO, so the regulator can operates single power supply. Three current ability products can be selected.
Features
 Input voltage range: 5.5 V to 16 V
 Constant-On-Time control
 Built-in power MOSFETs suitable for PC, Server application
 Internal 5 V LDO for single power supply operation
 5 V LDO / external 5 V input selectable (LDO remote ON/OFF)
 Switching frequency: Adjustable up to 2 MHz
 High average output current, up to 15 A (7703GBM), 10 A (7704GBM), 5 A (7705GBM)
 Controllable driver: Remote on/off
 Power Good function
 Over current protection/Over voltage protection/Thermal shutdown function
 Built-in bootstrapping diode
 Soft Start period adjustable
 Enhanced light load mode function for higher efficiency
 Extremely small chip size package with solder bump
 Pb-Free/Halogen-Free
Application Circuit
VIN
VCC
SET _BOOT
V5_IN
VIN
ON/OFF
SS ^RAA207703GBM
RAA207704GBM SW
RAA207705GBM
PGOOD
LDO_EN#
SGND
FB
PGND
VOUT
R07DS0892EJ0001 Rev.0.01
Nov 29, 2012
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