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Datasheet G914B PDF ( 特性, スペック, ピン接続図 )

部品番号 G914B
部品説明 Low-Noise LDO Regulators
メーカ Global Mixed-mode Technology
ロゴ Global Mixed-mode Technology ロゴ 
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G914B Datasheet, G914B PDF,ピン配置, 機能
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Global Mixed-mode Technology Inc.
G914X
300mA High PSRR, Low-Noise LDO Regulators
Features
„ Ultra Low Output Noise30µV (rms)
„ Ultra Low 55µA No-Load Supply Current
„ Ultra Low Dropout 70mV @ 50mA Load
„ Guarantee 300mA Output Current
„ Over-Temperature and Short-Circuit Protection
„ Fixed Mode: 2.70V (G914A), 2.80V (G914B)
3.00V (G914C), 3.30V (G914D)
2.50V (G914E), 2.85V (G914F)
1.50V (G914G), 1.80V (G914H)
„ Adjustable Mode: from 1.25V to 5.50V (G914Z)
„ PSRR=70dB
„ Max. Supply Current in Shutdown Mode < 1µA
„ Stable with low cost ceramic capacitors
General Description
The G914X is a low supply current, high PSRR low
dropout linear regulator that comes in a space saving
SOT-23-5 package. The supply current at no-load is
55µA. In the shutdown mode, the maximum supply
current is less than 1µA. Operating voltage range of
the G914X is from 2.5V to 5.5V. The over-current pro-
tection limit is set at 500mA typical and 400mA mini-
mum. An over- temperature protection circuit is built-in
in the G914X to prevent thermal overload. These
power saving features make the G914X ideal for use
in the battery-powered applications such as notebook
computers, cellular phones, and PDAs.
Applications
„ Notebook Computers
„ Cellular Phones
„ PDA
„ Hand-Held Devices
„ Battery-Powered Application
Ordering Information
ORDER
NUMBER
ORDER NUMBER
(Pb free)
G914A
G914Af
G914B
G914Bf
G914C
G914Cf
G914D
G914Df
G914E
G914Ef
G914F
G914Ff
G914G
G914Gf
G914H
G914Hf
G914Z
G914Zf
Pin Configuration
MARKING
4Axx
4Bxx
4Cxx
4Dxx
4Exx
4Fxx
4Gxx
4Hxx
4Zxx
VOLTAGE
2.70V
2.80V
3.00V
3.30V
2.50V
2.85V
1.50V
1.80V
Adjustable
TEMP.
RANGE
-40°C~ +85°C
-40°C~ +85°C
-40°C~ +85°C
-40°C~ +85°C
-40°C~ +85°C
-40°C~ +85°C
-40°C~ +85°C
-40°C~ +85°C
-40°C~ +85°C
PACKAGE
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
Typical Application Circuit
G914A~G914H
IN 1
5 OUT
GND 2
SHDN 3
4 BYP
CIN
1µF
BATTERY
G914A~G914H
IN OUT
SHDN
GND
BYP
OUTPUT
VOLTAGE
CBYP
10nF
COUT
4.7µF
IN 1
SOT-23-5
G914Z
5 OUT
GND 2
SHDN 3
4 SET
BATTERY 1CµIFN
Fixed mode
G914Z
IN OUT
SHDN
SET
GND
OUTPUT
VOLTAGE
R1
C4.O7UµTF
R2
Ver: 1.8
Jul 24, 2007
SOT-23-5
Adjustable mode
TEL: 886-3-5788833
http://www.gmt.com.tw
1

1 Page



G914B pdf, ピン配列
Global Mixed-mode Technology Inc.
Electrical Characteristics
(VIN=VOUT(STD)+1V, V SHDN =VIN, TA=TJ =25°C, unless otherwise noted.)
G914X
PARAMETER
SYMBOL
CONDITIONS
SHUTDOWN
SHDN Input Threshold
SHDN Input Bias Current
Shutdown Supply Current
THERMAL PROTECTION
VIH
VIL
ISHDN
IQ SHDN
Regulator enabled
Regulator shutdown
V SHDN = VIN TA = +25°C
VOUT = 0V
TA = +25°C
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
SET INPUT
TSHDN
ΔTSHDN
SET Reference Voltage
SET Input Leakage Current
VSET
ISET
VIN = 2.5V to 5.5V,IOUT = 1mA
VSET = 1.3V
MIN TYP MAX UNITS
1.5 --- ---
--- --- 0.4
--- 0.003 0.1
--- ---
1
V
µA
--- 150 ---
--- 15 ---
°C
°C
1.225 1.25 1.275 V
--- 5 30 nA
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Limits is 100% production tested at TA= +25°C. Low duty pulse techniques are used during test to maintain
junction temperature as close to ambient as possible.
VIN (min)=VOUT (STD)+VDROPOUT
Not tested. For design purposes, the current limit should be considered 400mA minimum to 600mA maximum.
The dropout voltage is defined as (VIN - VOUT) when VOUT is 100mV below the value of VOUT for VIN = VOUT +1V. The per-
formance of every G914X version, see Typical Performance Characteristics.
Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load
regulation in the load range from 1mA to 300mA. Changes in output due to heating effects are covered by the thermal
regulation specification.
Ver: 1.8
Jul 24, 2007
TEL: 886-3-5788833
http://www.gmt.com.tw
3


3Pages


G914B 電子部品, 半導体
Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
Line Transient
G914X
Load Transient
Load Transient
Output Noise vs. Bypass Capacitance
70
G914H
60 VIN=2.8V
TA=25°C
50
40 COUT=1µF
30
20
10
0
0.001
0.01
Bypass Capacitance (µF)
0.1
Power Supply Rejection Ripple
90
80 ILOAD=10mA
70
60
50
ILOAD=150m A
40
30
20 G914E
10 VIN=5V
0
0.01
0.1 1 10
Frequency (KHz)
100
Output Noise vs. Load Current
70
G914H
60 VIN=2.8V
TA=25°C
50
40
COUT=1µF
30
20
10
0
1 10 100 1000
Load Current (mA)
Ver: 1.8
Jul 24, 2007
TEL: 886-3-5788833
http://www.gmt.com.tw
6

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