Global Mixed-mode Technology Inc.
G9338
Ultra Low Output Voltage Linear N-FET Controller
Features
0.5V±2% Reference Voltage
Adjustable Output Voltage Down to 0.5V
MLCC and POSCAP Stable
Enable Control
Power Good Signal Output
Under Voltage Short Circuit Protection
Drive N-Channel MOSFETs
Output Voltage Discharge (G9338-XXX)
SOT-23-6 Package
General Description
The G9338 series are ultra low output voltage linear
N-FET controllers designed to simplify power manage-
ment for notebook computers. Both voltage adjustable
(G9338-ADJ) version and voltage fixed (G9338-XXX)
version are available for SOT23-6 package. The output
voltage can be adjusted from 0.5V to 2.5V for
G9338-ADJ. And there are four fixed voltage (1.05V,
1.35V, 1.5V, 1.8V) available for G9338-XXX.
Both versions feature a 0.5V reference voltage with
±2% accuracy providing tight regulation of the output
voltage, enable control, open drain power good signal,
under-voltage protection and soft start. The G9338-
XXX features additional output voltage discharge func-
tion during shutdown.
Applications
Notebook or Desknote Computers
Motherboards
Graphic Cards
Ultra-Low-Dropout Voltage Regulators
Ordering Information
ORDER
NUMBER
G9338-ADJTBU
G9338-105TBU
G9338-135TBU
G9338-150TBU
G9338-180TBU
ORDER NUMBER
(Pb free)
G9338-ADJTBUf
G9338-105TBUf
G9338-135TBUf
G9338-150TBUf
G9338-180TBUf
MARKING
938Ax
938Bx
938Cx
938Dx
938Ex
TEMP. RANGE
-40°C to 85°C
-40°C to 85°C
-40°C to 85°C
-40°C to 85°C
-40°C to 85°C
PACKAGE
SOT-23-6
SOT-23-6
SOT-23-6
SOT-23-6
SOT-23-6
Pin Configuration
Typical Application Circuit
G9338-ADJ
VCC
1
6
DRV
VCC
C3:0.1µF
G9338-ADJ
VCC
GND
DRV
R3*
ADJ
C4*
PGD
PGD
EN
R2:100
R1:110
VIN 1.5V
C1:4.7µF
VOUT 1.05V,0~3A
C2: MLCC 10µF~22µF or
POSCAP 100µF~220µF
GND
2
5
ADJ
PGD
3
SOT-23-6
4
EN
G9338-XXX
VCC
1
6
DRV
VCC
C3:0.1µF
G9338-XXX
VCC
DRV
R3*
GND
VOUT
C4*
PGD
PGD
EN
VIN 1.5V
C1:4.7µF
VOUT 1.05V,0~3A
C2: MLCC 10µF~22µF or
POSCAP 100µF~220µF
GND
2
5
VOUT
PGD
3
SOT-23-6
4 EN
R4:200 minimum load
*R3/C4 are options when using MLCC output capacitor
Ver: 0.3 Preliminary
Feb 17, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
1
GMT [ GLOBAL MIXED-MODE TECHNOLOGY INC ]
