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データシート AP3407 ( PDF ダウンロード )


AP3407 電子部品 詳細情報 ( 特性, スペック, ピン接続図 )

部品番号 AP3407
部品説明 1.4MHZ HIGH EFFICIENCY SYNCHRONOUS DC-DC BUCK CONVERTER
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AP3407 Datasheet, ピン配置, 機能
AP3407/A
1.2A, 1.4MHZ HIGH EFFICIENCY SYNCHRONOUS DC-DC BUCK CONVERTER
Description
The AP3407/A is a 1.4MHz fixed frequency, current mode, PWM
synchronous buck (step-down) DC-DC converter, capable of driving a
1.2A load with high efficiency, excellent line and load regulation. The
device integrates synchronous P-channel and N-channel power
MOSFET switches with low on-resistance. It is ideal for powering
portable equipment that runs from a single Li-ion battery.
A standard series of inductors are available from several different
manufacturers optimized for use with the AP3407/A. This feature
greatly simplifies the design of switch-mode power supplies.
The AP3407/A is available in SOT-23-5.
Features
Input Voltage Range: 2.5V to 5.5V
Output Voltage: 0.6V to VIN
ADJ Output
Fixed 1.4MHz Frequency
High Efficiency up to 95%
Output Current: 1.2A
Current Mode Control
100% Duty Cycle in Dropout
Built-in Over Current Protection
Built-in Short Circuit Protection
Built-in Thermal Shutdown Protection
Built-in UVLO Function
Built-in Soft-start
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Pin Assignments
(Top View)
EN 1
GND 2
SW 3
5 FB
4 VIN
SOT-23-5 for AP3407
(Top View)
VIN 1
GND 2
EN 3
5 SW
4 FB
SOT-23-5 for AP3407A
Applications
Datacom
Portable Device
Smart Phone
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
Typical Applications Circuit
R2
R1
VIN EN FB
VINAP3407/A-ADJSW
CIN
4.7F
GND
L
2.2H
COUT
22F
VOUT
AP3407/A
Document number: DS37553 Rev. 2 - 2
1 of 10
www.diodes.com
May 2016
© Diodes Incorporated





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