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參數資料
| 型號： | GM3255NS8R |
| 廠商： | American Power Management Inc. |
| 元件分類： | DC/DC變換器 |
| 英文描述： | 1.5A 280kHz DC-DC CONVERTOR BOOST REGULATOR |
| 中文描述： | 1.5A的為280kHz的DC - DC轉換器升壓穩壓器 |
| 文件頁數： | 1/19頁 |
| 文件大小： | 234K |
| 代理商： | GM3255NS8R |
Description
GM3255 products are 280 kHz switching regulators with a
high efficiency, 1.5 A integrated switch. These parts oper-
ate over a wide input voltage range, from 2.7 V to 30 V.
The flexibility of the design allows the chips to operate in
most power supply configurations, including boost, flyback,
forward, inverting, and SEPIC. The ICs utilize current
mode architecture, which allows excellent load and line reg-
ulation, as well as a practical means for limiting current.
Combining high frequency operation with a highly inte-
grated regulator circuit results in an extremely compact
power supply solution. The circuit design includes provi-
sions for features such as frequency synchronization, shut-
down, and feedback controls for either positive or negative
voltage regulation.
Application
Boost Regulators
CCFL Backlight Driver
Laptop Computer Supplies
Multiple Output Flyback Supplies
Inverting Supplies
TFT LCD Bias Supplies
TYPICAL APPLICATION CIRCUITS
Features
Integrated Power Switch: 1.5 A Guaranteed
Input Voltage Range: 2.7 V to 30 V
High Frequency Allows for Small Components
Minimum External Components
Easy External Synchronization
Built in Overcurrent Protection
Frequency Foldback Reduces Component
Stress During an Overcurrent Condition
Thermal Shutdown with Hysteresis
Regulates Either Positive or Negative Output
Voltages
Shut Down Current: 50 A Maximum
Wide Temperature Range Commercial
Commercial Grade : 0 to 70°C (GM3255)
GM3255
V
C
FB
Test
SS
V
SW
PGND
AGND
V
CC
1
2
3
4
5
6
7
8
R2
3.72K
C1
0.01F
SS
3.3V
R1
5k
R3
1.28k
C2
22F
L1
22H
D1
MBRS120T3
V
OUT
5V
C3
22F
+
www.gammamicro.com
G
M
3
2
5
V
0
.1
1
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相關代理商/技術參數 |
參數描述 |
|---|---|
| GM3255NS8T | 制造商:GAMMA 制造商全稱:GAMMA 功能描述:1.5A 280kHz DC-DC CONVERTOR BOOST REGULATOR |
| GM3255S8R | 制造商:GAMMA 制造商全稱:GAMMA 功能描述:1.5A 280kHz DC-DC CONVERTOR BOOST REGULATOR |
| GM3255S8T | 制造商:GAMMA 制造商全稱:GAMMA 功能描述:1.5A 280kHz DC-DC CONVERTOR BOOST REGULATOR |
| GM330K | 制造商:Mallory Sonalert Products Inc 功能描述:Cap Ceramic 33pF 500V SL 10% (6 X 4mm) Radial 6.4mm 85°C 制造商:CORNELL DUBILIER ELECTRONICS 功能描述:Cap Ceramic 33pF 500V SL 10% (6 X 4mm) Radial 6.4mm 85°C |
| GM331K | 功能描述:瓷片電容器 500V 330pF DISC RoHS:否 制造商:Vishay/Cera-Mite 電容:0.01 uF 容差:20 % 電壓額定值:3 kV 工作溫度范圍:- 25 C to + 105 C 損耗因數 DF: 端接類型:Radial 產品:High Voltage Ceramic Disc Capacitors |
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