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GM1117-1.8TC3R 参数 Datasheet PDF下载

GM1117-1.8TC3R图片预览
型号: GM1117-1.8TC3R
PDF下载: 下载PDF文件 查看货源
内容描述: 1.0A低压差精密线性稳压器 [1.0A LOW DROPOUT PRECISION LINEAR REGULATORS]
分类和应用: 稳压器
文件页数/大小: 13 页 / 228 K
品牌: GAMMA [ GAMMA MICROELECTRONICS INC. ]
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MICROELECTRONICS
A
A
Power Management
GM1117
1.0A LOW DROPOUT PRECISION LINEAR REGULATORS
Description
GM1117 of positive adjustable and fixed regulators is de-
signed to provide 1.0A output with low dropout voltage per-
formance. On-chip trimming adjusts the reference voltage
to 1%. For usage on working in post regulators or micro-
processor power supplies, low voltage operation and fast
transient response are required.
Pin-to-pin compatible with the LT1086 family of regulators,
GM1117 is available in surface-mount SOT-223 and TO-
252 packages.
Features
Adjustable or Fixed Output
Output Current of 1.0A
Dropout Voltage (Typical) 1.15V @ 1.0A
Line Regulation 0.2% max.
Load Regulation 0.4% max.
Fast Transient Response
Current Limit Protection
Thermal Shutdown Protection
Application
High Efficiency Linear Regulators
Post Regulators for Switching Supplies
Microprocessor Supply
Hard Drive Controllers
Battery Chargers
Adjustable Power Supply
TYPICAL APPLICATION CIRCUITS
(Adjustable Version)
(Fixed Version)
V
IN
> 4.75V
GM1117-Adj
3
V
IN
ADJ
V
OUT
2
R1
133W
1.0%
R2
232W
1.0%
V
OUT
= 3.45V
V
IN
> 4.75V
3
V
IN
GM1117-3.3
V
OUT
2
GND
V
OUT
= 3.3V
+
1
C1
10µF
Tant
+
C2
10µF
Tant. Min
+
1
C1
10µF
Tant
+
C2
10µF
Tant. Min
V
OUT
=
V
REF
X (1 +
R2
) + I
ADJ
X
R2
R1
Notes:
1. C1 needed if device is far from filter capacitors
2. C2 minimum value required for stability
www.gammamicro.com
GM1117
V0.1
1