Datasheet > AS1334-BTDT-XX

AS1334-BTDT-XX

更新时间： 2024-11-12 06:37:39

品牌	Logo	应用领域
艾迈斯 - AMSCO		转换器
页数	文件大小	规格书
17页	1733K
描述
650mA, Ultra low Ripple Step Down DC/DC Converter

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AS1334-BTDT-XX 数据手册

Datasheet

AS1334

650mA, Ultra low Ripple Step Down DC/DC Converter

1 General Description

2 Key Features

ꢀ

Output Voltage Ripple: 2mV

The AS1334 is a step-down DC-DC converter designed

to power portable applications from a single Li-Ion

battery. The device also achieves high-performance in

mobile phones and other applications requiring low

dropout voltage.

PWM Switching Frequency: 2MHz

Single Lithium-Ion Cell Operation

Output Voltage Range: 1.2V to 3.4V

(available in 100mV steps, see Ordering Information

on page 16)

The AS1334 operates from an input voltage range of 2.7

to 5.5V while providing output voltages of 1.2, 1.5, 1.8,

2.5, 3.0 and 3.3V.

ꢀ

Fixed Output Voltages:

- 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.3V

Fixed-frequency PWM operation minimizes RF

interference. Shutdown function turns the device off and

reduces battery consumption to 0.01µA (typ.).

ꢀ

Maximum Load Capability of 650mA

97% High Efficiency, 94% Average Efficiency

Current Overload Protection

Thermal Overload Protection

Power-OK

The AS1334 is available in a TDFN(3x3) 8-pin package.

A high switching frequency (2 MHz) allows use of tiny

surface-mount components. Only three small external

surface-mount components, an inductor and two

ceramic capacitors are required.

Soft Start

Low Dropout Voltage (140 mΩ Typ PFET)

TDFN(3x3) 8-pin

3 Applications

The AS1334 is an ideal solution to supply noise

sensitive applications as cellular phones, hand-held

radios, RF PC cards, battery powered RF devices, RFID

chipsets, A/D Converter, Sensors and OpAmps.

Figure 1. AS1334 - Typical Application Circuit

3.3 µH

PVIN

VIN

VOUT

10 µF

VDD

AS1334

10 µF

POK

OFF

SGND

PGND

www.austriamicrosystems.com

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