Document
Preliminary Datasheet
RAA207700GBM/7701GBM/7702GBM
Synchronous Buck Regulator with Internal Power MOSFETs
Description
The RAA207700GBM is monolithic synchronous buck regulator with power MOSFETs in extremely small package. The RAA207700GBM delivers high output current by small Rds(on) Power MOSFETs. Constant on time control architecture provides fast transient response, and minimize external components. The RAA207700GBM operates skip mode at light load, it provides high efficiency in all load condition. Three current ability products can be selected. R07DS0891EJ0001 Rev.0.01 Nov 29, 2012
Features
Wide input voltage range: 3 V to 16 V Constant-On-Time control Built-in power MOSFETs suitable for PC, Server application Very low stand-by current: 0.1 A (typ.) Very low quiescent current :320 A (typ. at no load) Switching frequency: Adjustable up to 2 MHz High average output current, up to 15 A (7700GBM), 10 A (7701GBM), 5 A (7702GBM) 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 High drivability built-in line switch driver for low-loss line switch driving Extremely small chip size package with solder bump Pb-Free/Halogen-Free
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Application Circuit
VCIN VIN
VCIN ON/OFF
SET
BOOT VIN
SS RAA207700GBM
PGOOD
RAA207701GBM SW RAA207702GBM
FB
VOUT_1
Line SW control signal
LS_IN PGND LS_OUT SGND
Discrete Line SW
VOUT_2
R07DS0891EJ0001 Rev.0.01 Nov 29, 2012
Page 1 of 17
Datasheet pdf - http://www.DataSheet4U.co.kr/
RAA207700GBM/7701GBM/7702GBM
Preliminary
Pin Arrangement
Top View
1 VCIN 2 SGND 3 FB 4 LS_ IN 5 LS_ OUT A 1 VCIN
2 SGND 3 FB 4 LS_ IN 5 LS_ OUT A 1 VCIN
2 SGND 3 FB 4 LS_ IN 5 LS_ OUT A
BOOT
SET
PGO OD
SS
ON/ OFF
B
BOOT
SET
PGO OD
SS
ON/ OFF
B
BOOT
SET
PGO OD
SS
ON/ OFF
B
SW
VIN
VIN
VIN
VIN
C
SW
VIN
VIN
VIN
VIN
C
SW
SW
VIN
VIN
VIN
C
SW
SW
SW
SW
VIN
D
SW
SW
SW
SW
VIN
D
SW
SW
PGND
PGND
PGND
D
SW
PGND
PGND
PGND
PGND
E
SW
PGND
PGND
PGND
PGND
E
SW
SW
SW
PGND
PGND
F
SW
SW
SW
PGND
PGND
F
SW
PGND
PGND
PGND
PGND
G
Bottom View
5 LS_ OUT 4 LS_ IN 3 FB 2 SGND 1 VCIN A 5 LS_ OUT
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1 VCIN A 5 LS_ OUT 4 LS_ IN 3 FB 2 SGND 1 VCIN A
4 LS_ IN
3 FB
2 SGND
ON/ OFF
SS
PGO OD
SET
BOOT
B
ON/ OFF
SS
PGO OD
SET
BOOT
B
ON/ OFF
SS
PGO OD
SET
BOOT
B
VIN
VIN
VIN
VIN
SW
C
VIN
VIN
VIN
VIN
SW
C
VIN
VIN
VIN
SW
SW
C
VIN
SW
SW
SW
SW
D
VIN
SW
SW
SW
SW
D
PGND
PGND
PGND
SW
SW
D
PGND
PGND
PGND
PGND
SW
E
PGND
PGND
PGND
PGND
SW
E
PGND
PGND
SW
SW
SW
F
PGND
PGND
SW
SW
SW
F
PGND
PGND
PGND
PGND
SW
G
CSP 35-pin package 2.7 mm × 3.9 mm
CSP 30-pin packag.