Datasheet > AS1357

AS1357

更新时间： 2024-01-21 04:19:42

品牌	Logo	应用领域
艾迈斯 - AMSCO		/
页数	文件大小	规格书
10页	299K
描述
Programmable Triple LDO

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AS1357 技术参数

生命周期：	Active	Reach Compliance Code：	unknown
风险等级：	5.58	Base Number Matches：	1

AS1357 数据手册

Data Sheet

AS1357

Programmable Triple LDO

1 General Description

2 Key Features

ꢀ

3 Independent Voltage Regulators with Shutdown

The AS1357 is a high-performance triple CMOS low-

dropout voltage regulator in a single QFN package. The

efficient set of programmable power supplies is opti-

mized to deliver the best compromise between quies-

cent current and regulator performance for mobile

phones, PDAs, MP3 players, and other battery powered

devices.

Output Current: 200mA each LDO

One Time Programmable Output Voltage

(User- or Factory-Trimmed)

ꢀ

Programmable Output Voltage Range: 1.8 to 3.3V in

0.1V Steps

ꢀ

Accuracy: ±1.5%

The one-time-programmable (OTP) function provides

greater design flexibility by allowing for independent pro-

gramming of the output voltage for each regulator on-

site. The OTP function allows for fast prototyping reduc-

ing development times and costs significant. Factory

trimmed versions for full-production are also available.

PSRR: 70dB at 1kHz, 40dB at 100kHz

Line Regulation: ±2mV

Load Regulation: ±0.6mV

Supply Range: 3 to 5.5V

0.2V Dropout Voltage @ I = 200mA

Shutdown Current: ≤1µA

Stability is guaranteed with ceramic output capacitors of

only 1µF (±20% – X5R) up to 4.7µF (±20% – X5R). The

low equivalent series resistance (ESR) of these capaci-

tors ensures low output impedance at high frequencies.

Supply Current Without Load: 175µA (typ)

Softstart for Low Inrush Current

Stable with low ESR Ceramic Capacitors from 1 to

4.7µF

Regulation performance is excellent even under low

dropout conditions, when the power transistor has to

operate in linear mode.

ꢀ

Low Noise: 40µV rms @10Hz to 100kHz Bandwidth

Thermal Protection

The low-noise performance allows direct connection of

noise sensitive circuits without additional filtering net-

works.

Over-Current Protection

Temperature Range: -40 to +85°C

The AS1357 is available in a 12-pin QFN 4x4 or 16-pin

QFN 3x3 package.

Package Types: 12-pin QFN 4x4 and

16-pin QFN 3x3

3 Applications

The AS1357 is ideal for cordless and mobile phones,

MP3 players, CD and DVD players, PDAs, handheld

computers, digital cameras, and any other hand-held

battery-powered device.

Figure 1. Pinout Assignments (Top View)

EN3

N/C

REF

EN2

EN3

N/C

REF

EN1

VDD

GND

VDD

EN2

EN1

VDD

GND

VDD

N/C

AS1357

12-pin QFN

4x4

AS1357

16-pin QFN

3x3

VDD

13 GND

(Exposed Pad)

VOUT1 VOUT2 VOUT3

VOUT1 VOUT2 VOUT3 N/C

www.austriamicrosystems.com

Revision 1.07

1 - 10

12 3 4 5 6 7...10

中文翻译

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与AS1357相关器件

型号	品牌	获取价格	描述	数据表
AS1357_1	AMSCO	获取价格	Programmable Triple LDO
AS1357-T	AMSCO	获取价格	Programmable Triple LDO
AS1357V-T	AMSCO	获取价格	Programmable Triple LDO
AS1358	AMSCO	获取价格	150mA/300mA, Ultra-Low-Noise, High-PSRR Low Dropout Regulators
AS1358_04	AMSCO	获取价格	150mA/300mA, Ultra-Low-Noise, High-PSRR Low Dropout Regulators
AS1358_1	AMSCO	获取价格	150mA/300mA, Ultra-Low-Noise, High-PSRR Low Dropout Regulators
AS1358-BTTT-15	AMSCO	获取价格	150mA/300mA, Ultra-Low-Noise, High-PSRR Low Dropout Regulators
AS1358-BTTT-18	AMSCO	获取价格	150mA/300mA, Ultra-Low-Noise, High-PSRR Low Dropout Regulators
AS1358-BTTT-25	AMSCO	获取价格	150mA/300mA, Ultra-Low-Noise, High-PSRR Low Dropout Regulators
AS1358-BTTT-26	AMSCO	获取价格	150mA/300mA, Ultra-Low-Noise, High-PSRR Low Dropout Regulators

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