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AS1301A-BTDT PDF预览

AS1301A-BTDT

更新时间: 2024-02-05 12:13:51
品牌 Logo 应用领域
艾迈斯 - AMSCO 转换器升压转换器
页数 文件大小 规格书
16页 1060K
描述
5V/50mA Low Noise Inductorless Boost Converter

AS1301A-BTDT 技术参数

生命周期:ActiveReach Compliance Code:unknown
风险等级:5.64Base Number Matches:1

AS1301A-BTDT 数据手册

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Data Sheet  
AS1301  
5V/50mA Low Noise Inductorless Boost Converter  
1 General Description  
2 Key Features  
Up to 92% Efficiency  
The AS1301 is a 50mA inductorless boost converter  
using a double H-bridge charge-pump topology with two  
external flying capacitors.  
2.7 to 5.25V Input Voltage  
Regulated 5V Output  
The AS1301 runs on a 1MHz fixed frequency and is  
utilized with a low noise regulation scheme to allow  
usage together with sensitive RF circuitry from the same  
battery supply.  
Automatic Mode Up-Switching  
<5µA Shutdown Current  
5V Tolerant Enable Signal  
Up to 50mA Load Current  
Overload Protection  
Designed to reside in portable and space limited  
equipment the 1MHz charge pump converts a 2.7 to  
5.25V input to regulated 5V output with 5% accuracy.  
Output Disconnected During Shutdown  
Soft Start  
The shutdown function reduces the supply current to  
<5µA and disconnects the load from the output. The  
integrated soft-start circuitry prevents current spikes  
being drawn from the battery during start-up.  
No Inductor Required  
Small External Components Required  
The AS1301 is available in TDFN (3x3x0.8mm) 10-pin  
and WL-CSP 8-bumps packages.  
(COUT 2.2µF, CFLY 220nF)  
Low Noise Fixed Frequency 1MHz Charge Pump:  
- 1:1 Battery Feed Through Mode  
- 2:3 Single Phase Mode  
- 1:2 Dual Phase Mode  
Package Options:  
- TDFN (3x3x0.8mm) 10-pin  
- WL-CSP 8-bumps with 0.5mm pitch  
3 Applications  
The device is ideal for dual/triple AA cells or single Li-Ion  
battery cell to 5V conversion, mobile phones, portable  
instruments, microprocessor based systems, remote  
data-acquisition systems, inductorless DC-DC  
conversion.  
Figure 1. Block Diagram  
CFLY1  
C1+  
CFLY2  
C2+  
C2-  
C1-  
5V Supply  
VBATT  
VBATT  
VOUT  
GND  
+
CBAT  
COUT  
2.2µF  
2.2µF  
AS1301  
On  
Off  
EN  
www.austriamicrosystems.com  
Revision 1.00  
1 - 16  

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