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FAN2012MPX 数据手册 - Fairchild（飞兆/仙童）
制造商:
Fairchild（飞兆/仙童）
分类:
DC/DC转换器
封装:
MLP-6
描述:
FAIRCHILD SEMICONDUCTOR FAN2012MPX 直流-直流开关同步降压稳压器, 可调, 4.5V-5.5V输入, 800mV-5.5V/1.5A输出, 1.5MHz, MLP-6
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FAN2012MPX数据手册
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October 2013
© 2004 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN2012 • Rev. 1.0.5
FAN 2012 — 1.5 A Low-Voltage, Current-Mode Synchronous PWM Buck Regulator
FAN2012
1.5 A Low-Voltage, Current-Mode Synchronous PWM
Buck Regulator
Features
95% Efficiency, Synchronous Operation
Adjustable Output Voltage from 0.8 V to 3.5 V
4.5 V to 5.5 V Input Voltage Range
Up to 1.5 A Output Current
Fixed-Frequency 1.3 MHz PWM Operation
Soft Start
Excellent Load Transient Response
3 x 3 mm, 6-Lead, MLP
Applications
Hard Disk Drive
Set-Top Box
Point-of-Load Power
Notebook Computer
Communications Equipment
Description
The FAN2012 is a high-efficiency, low-noise,
synchronous Pulse Width Modulated (PWM) current-
mode DC-DC converter designed for low-voltage
applications. It provides up to 1.5 A continuous-load
current from the 4.5 V to 5.5 V input. The output voltage
is adjustable over a wide range of 0.8 V to 3.5 V by
means of an external voltage divider.
The FAN2012 has an “Enable Input” and the device can
be put in shutdown mode, in which the ground current
falls below 1 µA.
A current-mode control loop with a fast transient
response ensures excellent line and load regulation.
The fixed 1.3 MHz switching frequency enables
designers to choose a small, inexpensive external
inductor and capacitor. Filtering is easily accomplished
with very small components.
Protection features include input under-voltage lockout,
short-circuit protection, and thermal shutdown. Soft-
start limits inrush current during start-up conditions.
The device is available in a 3x3 mm 6-lead molded
leadless package (MLP), making it possible to build a
1.5 A complete DC-DC converter in limited space on the
printed circuit board (PCB).
Ordering Information
Part Number
Output Voltage
Operating Temperature Range
Package
FAN2012MPX
Adjustable
0°C to 85°C
3x3 mm 6-Lead MLP
FAN2012EMPX
Adjustable
-40°C to 85°C
3x3 mm 6-Lead MLP
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