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データシート AP3211H PDF ダウンロード


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部品番号 AP3211H
部品説明 1.5A ASYNCHRONOUS DC-DC BUCK CONVERTER
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AP3211H Datasheet, AP3211H PDF,ピン配置, 機能
PART OBSOLETE - USE AP3211 and AP5100
Preliminary Datasheet
1.4MHz, 1.5A ASYNCHRONOUS DC-DC BUCK CONVERTER AP3211H
General Description
The AP3211H is a 1.4MHz fixed frequency, current
mode, PWM buck (step-down) DC-DC converter,
capable of driving a 1.5A load with high efficiency,
excellent line and load regulation. The device
integrates N-channel power MOSFET switch with
low on-resistance. Current mode control provides fast
transient response and cycle-by-cycle current limit.
A standard series of inductors are available from
several different manufacturers optimized for use
with the AP3211H. This feature greatly simplifies the
design of switch-mode power supplies.
The AP3211H is available in SOT-23-6 package.
Features
Input Voltage Range: 4.5V to 23V
Fixed 1.4MHz Frequency
High Efficiency: up to 92%
Output Current: 1.5A
Current Mode Control
Built-in Over Current Protection
Built-in Thermal Shutdown Function
Built-in UVLO Function
Built-in Over Voltage Protection
Built-in Soft-start
Applications
LCD TV
DPF
Portable DVD
SOT-23-6
Figure 1. Package Type of AP3211H
Jun. 2014 Rev. 2. 4
BCD Semiconductor Manufacturing Limited
1

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AP3211H pdf, 電子部品, 半導体, ピン配列
PART OBSOLETE - USE AP3211 and AP5100
Preliminary Datasheet
1.4MHz, 1.5A ASYNCHRONOUS DC-DC BUCK CONVERTER AP3211H
Functional Block Diagram
IN 5
SCHOTTKY
FB
SS
VREF
BOOSTRAP
CL HICCUP
REGULATOR
GND 2
VDD/VDD1
REGULATOR
OSC
1.4 MHz/
460 KHz
RAMP
GENERATOR
2A/V
CS
EN 4
3
FB
3.3V
REFERENCE
VOLTAGE
1M
SS
1pF
27pF 220k
ERR AMP
VLIMIT
OSC
S
CL
R
Q
PWM
COMPARATOR
R
SWITCH / LDO
1
BS
6 SW
Figure 3. Functional Block Diagram of AP3211H
Ordering Information
AP3211H
-
Circuit Type
Package
K: SOT-23-6
G1: Green
TR: Tape & Reel
Package
SOT-23-6
Temperature
Range
-40 to 85C
Part Number
AP3211HKTR-G1
Marking ID
GBK
Packing
Type
Tape & Reel
BCD Semiconductor's Pb-free products, as designated with "G1" suffix in the part number, are RoHS compliant
and green.
Jun. 2014 Rev. 2. 4
BCD Semiconductor Manufacturing Limited
3





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