Datasheet > AS1302-BTDT

AS1302-BTDT

更新时间： 2024-02-02 09:36:24

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
18页	1168K
描述
5V/30mA Adaptive Inductorless Boost Converter

阅读下载

获取价格

技术参数
数据手册

如果您发现信息不准确，欢迎纠错

AS1302-BTDT 技术参数

是否无铅：	不含铅	生命周期：	Active
Reach Compliance Code：	unknown	风险等级：	5.58
Base Number Matches：	1

AS1302-BTDT 数据手册

Datasheet

AS1302

5V/30mA Adaptive Inductorless Boost Converter

1 General Description

2 Key Features

ꢀ

Up to 90% Efficiency

The AS1302 is a 30mA inductorless boost converter

using a double H-bridge charge-pump topology with two

external flying capacitors. The AS1302 charge pump

features 1:2 and 2:3 operation modes as well as a 1:1

operation mode where the input is directly connected to

the output.

2.9V to 5.15V Input Voltage

Regulated 5V Output

Automatic Mode Switching

<1µA Shutdown Current

Startup with Full Load (within 1ms)

Up to 30mA Load Current

Short Circuit Protection

Output Disconnected During Shutdown

Soft-Start

The AS1302 runs on a 1.2MHz fixed frequency and is

utilized with a low noise regulation scheme to allow

usage together with sensitive RF circuitry from the same

battery supply. Additionally to increase efficiency the

AS1302 switches to 49kHz at light loads.

Designed to reside in portable and space limited

equipment the 1.2MHz charge pump converts a 2.9V to

5.15V input to regulated 5V output with 3% accuracy.

No Inductor Required

Small External Components Required

(COUT =2.2µF, CFLY =220nF)

The shutdown function reduces the supply current to

<1µA and disconnects the load from the output. The

integrated soft-start circuitry prevents high inrush

currents being drawn from the battery during start-up.

ꢀ

Low Noise Fixed Frequency (1.2MHz, 49kHz)

Charge Pump:

- 1:1 Battery Feed Through Mode

- 2:3 Single Phase Mode

- 1:2 Single Phase Mode

Package Options:

The AS1302 includes built-in under-voltage lockout,

short circuit-, and thermal protection circuitry.

The AS1302 is available in TDFN (3x3x0.8mm) 10-pin

and an extremely small 1.2x1.2mm WL-CSP 8-bumps

package with 0.4mm pitch.

ꢀ

- TDFN (3x3x0.8mm) 10-pin

- WL-CSP 8-bumps with 0.4mm Pitch

3 Applications

The device is ideal for two or three AA cells or a single

Li-Ion battery cell to 5V conversion, mobile phones,

portable instruments, microprocessor based systems

and remote data-acquisition systems.

Figure 1. AS1302 - Typical Application Diagram

C_FLY1

C1+

220nF

C1-

VOUT = 5V

VBATT

2.9V to 5.15V

VBATT

VOUT

GND

C_BAT

2.2µF

C_OUT

2.2µF

AS1302

Off

C2+

C2-

220nF

C_FLY2

www.austriamicrosystems.com

Revision 1.02

1 - 18

12 3 4 5 6 7...18

下载PDF

与AS1302-BTDT相关器件

型号	品牌	描述	获取价格	数据表
AS1302-BWLT	AMSCO	5V/30mA Adaptive Inductorless Boost Converter	获取价格
AS130-73	SKYWORKS	GaAs SPST High-Isolation Switch 300 kHz-2.5 GHz	获取价格
AS130-73LF	SKYWORKS	GaAs SPST High-Isolation Switch 300 kHz-2.5 GHz	获取价格
AS1310	AMSCO	Ultra Low Quiescent Current, Hysteretic DC-DC Step-Up Converter	获取价格
AS1310_12	AMSCO	Ultra Low Quiescent Current, Hysteretic DC-DC Step-Up Converter	获取价格
AS1310-BTDT-18	AMSCO	Ultra Low Quiescent Current, Hysteretic DC-DC Step-Up Converter	获取价格