GT1510 반도체 회로 부품 판매점
PWM Control 3A Step-Down Converter
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 GMOS |
GT1510
PWM Control 3A Step-Down Converter
■ General Description
The GT1510 consists of step-down switching
regulator with PWM control . This device include a
reference source, oscillation circuit,error amplifier,
internal P-channel DMOS and etc.
GT1510 provides low-ripple power, high efficiency,
and excellent transient characteristics. The PWM
control circuit is able to vary the duty ratio linearly
from 0 up to 100%. This converter also contains an
error amplifier as well as a soft-start circuit that
prevent a overshoot at startup. An enable function,
over current protect function and a short circuit
protect function are built inside, when OCP or SCP
happens, the operation frequency will be reduced
from 300KHz to 40KHz. Also, an internal
compensation block is built in to minimum external
component count.
With the addition of internal P-channel DMOS, a
coil, capacitors, and a schottky diode connected
externally, this IC serve as ideal power supply unit
for portable when coupled with the SOP-8L
mini-package, providing such outstanding features
as low current consumption. Since this converter
can accommodate an input voltage up to 24V, It is
also ideal when operating via an AC adapter.
■ Pin Assignments 脚位排列
■ Features
- Input voltage:3.6V to 24V
- Adjustable output voltage range :0.8V to VCC
- Duty ratio:0% to 100% PWM control
- Oscillation frequency:380KHz typ.
- Soft-start, Current limit,Enable function
- Thermal Shutdown function
- Bulit-in internal 60mΩ P-channel DMOS
- Up to 95% Efficiency
- Output load current: 3A
- SOP-8L Pb-Free Package
- Low power standby mode
■ Applications
- Distributed Power Systems
- LCD Monitor
- DVD-Video Player
- Telecom Equipment
- ADSL Modem
- Printer and other Peripheral Equipment
- Battery Chargers
- Set-Top Boxes
- Cigarette Lighter Powered Devices
■ Pin Descriptions 脚功能描述
(Top View)
FB 1
EN 2
OCS 3
VIN 4
8 GND
7 GND
6 SW
5 SW
SOP-8L
Pin# Name
Description
1 FB Feedback pin 反馈脚
Power-off pin 使能脚
2 EN H: Normal operation
使能 L: Disable operation
Connects an external resistor to
3 OCS set maximum output current.电流设置脚
(外接一个电阻设置最大输出电流)
4 VIN IC power supply pin. 输入脚
Switch Pin. Connect external
5,6 SW inductor/schottky diode here.开关脚
(接一电感或者肖特基二极管)
7,8 GND Ground Pin.接地脚
GMOS Technology Crop.
www.gmos-semi.com
1/7
Free Datasheet http://www.datasheet4u.com/
PWM Control 3A Step-Down Converter
■ Ordering Information
GT1510 XX X X
Output version Package
Blank: ADJ S: SOP-8L
Packing
Blank : Tube
A : Taping
■ Block Diagram
EN OCS
Current
Source
bias
0.8V
Reference
2.5V
Regulator
Start
up
100uA
+
Com_p
GT1510
VIN
FB
+
Amp
_
Comp
+
PW M-Switched
Control Circuit
3A
Switch
40k/380kHz
OSC.
Thermal
Limit
SW
Gnd
GMOS Technology Corp.
www.gmos-semi.com
2/7
Free Datasheet http://www.datasheet4u.com/
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PDF 파일 내의 페이지 : 총 7 페이지
제조업체: GMOS
( gmos )
GT1510 converter
데이터시트 다운로드 :
[ GT1510.PDF ]
[ GT1510 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
