参数资料
型号: AP5100WG-7
厂商: Diodes Inc
文件页数: 1/12页
文件大小: 0K
描述: IC REG BUCK ADJ 1.2A 26SOT
标准包装: 1
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.81 V ~ 15 V
输入电压: 4.75 V ~ 24 V
PWM 型: 电流模式
频率 - 开关: 1.4MHz
电流 - 输出: 1.2A
同步整流器:
工作温度: -25°C ~ 85°C
安装类型: 表面贴装
封装/外壳: SOT-23-6
包装: 标准包装
供应商设备封装: SOT-26
其它名称: AP5100WG-7DIDKR
AP5100
1.2A STEP-DOWN CONVERTER with 1.4MHz SWITCHING
FREQUENCY
Description
The AP5100 is a current mode step-down converter with a
built-in power MOSFET to enable smallest solution size
power conversion.
Pin Assignments
( Top View )
With the low series resistance power switch it enables a
BST
1
6
SW
constant output current of up to 1.2A over a wide input supply
range. The load and line regulation has excellent response
GND
2
5
IN
time over the operating input voltage and temperature range.
The AP5100 is self protected, through a cycle-by-cycle
FB
3
74
EN
current limiting algorithm and an on chip thermal protection.
The AP5100 will provide the voltage conversion with a low
count of widely available standard external components.
The AP5100 is available in SOT26 package.
Features
Applications
SOT26
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V IN 4.75V to 24V
Load current of up to 1.2A
Internal Power MOSFET
Stable with Low ESR Ceramic Output Capacitors
Up to 90% Efficiency
0.1μA Shutdown Mode
Fixed 1.4MHz Frequency
Thermal Shutdown
Cycle-by-Cycle Over Current Protection
Resistor divider adjustable Output: 0.81V to 15V
SOT26: Available in “Green” Molding Compound
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Distributed Power Systems
Battery Charger
Pre-Regulator for Linear Regulators
WLED Drivers
(No Br, Sb)
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Lead Free Finish/RoHS Compliant (Note 1)
Notes:
1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
Typical Application Circuit
100
90
V IN = 12V
L = 3.3μH
V OUT = 5V
V IN
5
IN
BST 1
80
V OUT = 3.3V
C1
AP5100
SW
6
C3
D1
.L1
V OUT
70
R1
C6
60
OFF
ON
4
EN
GND
FB 3
C2
R2
50
40
0
0.2
0.4
0.6 0.8 1.0
1.2
Figure 2. Typical Application Circuit
LOAD CURRENT (A)
Fig. 1 Efficiency vs. Load Current
AP5100
Document number: DS32130 Rev. 3 - 2
1 of 12
April 2012
? Diodes Incorporated
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