GMT G914 Datasheet
Global Mixed-mode Technology Inc.
150mA Low-Dropout Linear Regulators
Features
Low, 52µA Ground Current
Guaranteed 150mA Output Current
Dropout Voltage is 100mV @ 50mA Load
Over-Temperature Protection and Short-Circuit
Protection
Adjustable Mode: from 2.5V to 5.5V
Max. Supply Current in Shutdown Mode < 1µA
Low Output Noise is 170 µV
Applications
Notebook Computers
Cellular Phones
PDAs
Digital still Camera and Video Recorders
Hand-Held Devices
Bar Code Scanners
RMS
G914
General Description
The G914 is a low supply current, low dropout linear
regulator that comes in a space saving SOT23-5 package. The supply current at no-load is 52µA. In the
shutdown mode, the maximum supply current is less
than 1µA. Operating voltage range of the G914 is from
2.5V to 5.5V. The over-current protection limit is set at
370mA typical and 150mA minimum. An overtemperature protection circuit is built-in in the G914 to
prevent thermal overload. These power saving features make the G914 ideal for use in the battery-powered applications such as notebook computers, cellular phones, and PDA’s.
The G914 is a adjustable output version in a small
SOT 23-5 package.
Ordering Information
Pin Configuration
1
1
1
IN
IN
IN
2
2
2
GND
GND
GND
SHDN
SHDN
SHDN
3
3
3
G914
G914
G914
SOT23-5
SOT23-5
SOT23-5
PART MARKING VOLTAGE
TEMP.
RANGE
PIN-
PACKAGE
G914 14 Adjustable -40°C~ +85°C SOT 23-5
OUTPUT
OUTPUT
C
C
C
1µF
1µF
1µF
OUT
OUT
OUT
OUTPUT
VOLTAGE
VOLTAGE
VOLTAGE
OUT
OUT
G914
G914
G914
GND
GND
GND
OUT
ADJ
ADJ
ADJ
R1
R1
R1
R2
R2
R2
470pF
470pF
470pF
IN
IN
5
5
5
OUT
OUT
OUT
＋
＋
＋
C
C
－
－
－
BATTERY
BATTERY
BATTERY
4
4
4
ADJ
ADJ
ADJ
V
V
V
OUT
OUT
OUT
C
1µF
1µF
1µF
=1.250 X ( R2/R1+1)
=1.250 X ( R2/R1+1)
=1.250 X ( R2/R1+1)
IN
SHDN
SHDN
SHDN
IN
IN
IN
Adjustable mode
Adjustable mode
Adjustable mode
Ver 0.2 Preliminary
Jul 19, 2002
1
TEL: 886-3-5788833
http://www.gmt.com.tw
Absolute Maximum Ratings
VIN to GND……………………………………-0.3V to +7V
Output Short-Circuit Duration………………….….Infinite
SET to GND.……………………………..…..-0.3V to +7V
SHDN to GND…………………..………….-0.3V to +7V
SHDNto IN….…………………..…………..-7V to +0.3V
OUT to GND…………………………-0.3V to (V
Stresses beyond those li sted under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stres s ratings only, and functional operat i on of the device at these or any other condit i ons beyond those indicated in the operational sections of
the specifications is not implied. Exposure to absolute maximum rating c ondi tions for extended periods may affect devi ce reliability.
Global Mixed-mode Technology Inc.
Continuous Power Dissipation (T
SOT23-5……………………………………...…..568 mW
Operating Temperature Range………...-40°C to +85°C
Junction Temperature……………………….……+150°C
….…..……………….…………….…..…..220°C/Watt
θ
JA
Storage Temperature Range………….-65°C to +160°C
Lead Temperature (soldering, 10sec)..…………+300°C
+ 0.3V)
IN
= +25°C)
A
G914
Electrical Characteristics
(V
= V
OUT
+1V;
IN
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input Voltage (Note 2) VIN Note2 5.5 V
Output Voltage Accuracy V
Adjustable Output Voltage Range (Note 3) V
Maximum Output Current 150 mA
Current Limit I
Ground Pin Current IQ
Dropout Voltage (Note 3) V
Line Regulation
Load Regulation
Output Voltage Temperature Coefficient ∆VO / ∆T I
Output Voltage Noise (10HZ to 100KHZ) en IL = 150mA
SHUTDOWN
SHDN
Input Threshold
SHDN
Input Bias Current
Shutdown Supply Current I
ADJ INPUT
ADJ Input Leakage Current I
THERMAL PROTECTION
Thermal Shutdown Temperature T
Thermal Shutdown Hysteres is
Note 1: Limits is 100% production tested at T
maintain junction temperature as close to ambient as possible.
Note 2: V
IN (min)
= V
Note 3: The dropout voltage is defined as (V
= VIN; CIN = C
V
SHDN
+V
OUT
DROP
= 1µF = TA = TJ = +25°C, unless otherwise noted.) (Note 1)
OUT
Variation from specified V
OUT
2.5 5.5 V
OUT
V
LIM
DROP
V
VIN=VO +0.1V to 5.5V , I
∆
LNR
V
I
∆
LDR
= 0V 370 mA
OUT
I
= 0mA
LOAD
= 150mA
I
LOAD
I
= 1mA 2
OUT
I
= 50mA 100
OUT
I
=150mA 340
OUT
= 0mA to 150mA 8 25 mV
OUT
= 40mA, TJ = 25°C to 125°C 40 ppm/°C
OUT
VIH Regulator enabled 2
V
Regulator shutdown 0.4
IL
V
I
SHDN
V
QSHDN
V
ADJ
150 °C
SHDN
T
15 °C
∆
SHDN
= VIN
SHDN
= 0V TA = +25°C 0.06 1 µA
OUT
= 1.3V TA = +25°C 5 30 nA
ADJ
= +25°C. Low duty pulse techniques are used during test to
A
, I
OUT
=1mA -3 3 %
OUT
52 80 µA
= 1m A 0.1 %/V
OUT
C
= 470pF 192
ADJ
C
= 10nF 170
ADJ
T
= +25°C
A
0.007 0.1 µA
µV
mV
RMS
V
.
IN-VOUT
) when V
is 100mV below the value of V
OUT
for VIN = V
OUT
OUT
+2V.
Ver 0.2 Preliminary
Jul 19, 2002
2
TEL: 886-3-5788833
http://www.gmt.com.tw
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