G9182/G9183
Global Mixed-mode Technology
300mA Low Dropout Regulator with External Bias
Supply
Features
General Description
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The G9183 is a high performance positive voltage
regulator designed for use in applications requiring
very low Input voltage and very low dropout voltage at
up to 300mA. It operates with a VIN as low as 1.25V
and VBIAS voltage 3V with output voltage programmable as low as 0.8V. The G9183 features ultra low
dropout, ideal for applications where VOUT is very close
to VIN. Additionally, the G9183 has an enable pin to
further reduce power dissipation while shutdown. The
G9183 provides excellent regulation over variations in
line, load and temperature. The G9183 provides a
power OK signal to indicate if the voltage level of VO
reaches 92% of its rating value.
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Input Voltage as Low as 1.25V and 5V Input
Bias Supply current
100mV Dropout @ 300mA, as VO is 1.2V
±2% Output Voltage
Adjustable Output Low to 0.8V
0.9V, 1.0V, 1.2V, 1.5V and 1.8V Options by Setting ADJ Pin Below 0.2V and Adjustable Externally Using Resistors
VO Power OK Signal with 2ms Rising Edge
Propagation delay
Over Current and Over Temperature Protection
Enable Pin
TSOT-23-6, SOT-23-6 and SOP-8 Packages
Applications
The G9183 is available in the power TSOT-23-6,
SOT-23-6 and SOP-8 package. It is available with
0.9V, 1.0V, 1.1V, 1.2V, 1.5V, 1.6V, 1.7V and 1.8V internally preset outputs that are also adjustable using
external resistors.
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VID Power Supplies
„ PDAs
„ Notebook Computers
„ Cell Phones
Pin Configuration
Typical Application Circuit
G9182
VBIAS 1
G9183
6 VIN
100kΩ
VBIAS (5V)
GND 2
5 VO
VEN 3
4 POK
1
8
GND
TSOT-23-6
VEN
2
7
ADJ
G9183
VIN
3
6
VO
VBIAS
4
5
NC
6 VIN
GND 2
5 VO
VEN 3
4 ADJ
VBIAS
VEN
G9183
POK
VBIAS 1
VBIAS POK
VIN
VIN
VO
VO
R1
CPP
1µF
C1
10µF
GND
ADJ
C2
10µF
R2
SOP-8
VO =
0.8 (R1+R2)
Volts
R2
TSOT-23-6/SOT-23-6
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.9
Sep 16, 2013
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