ams Datasheet

Page 1

[v1-04] 2015-Jun-19

Document Feedback

AS1382

1A, High Efficiency, DC-DC Step Down

Converter

The AS1382 is a high-efficiency, constant-frequency

synchronous buck converter available in adjustabe- and

fixed-voltage versions. The wide input voltage range (2.7V to

5.5V), automatic powersave mode and minimal external

component requirements make the AS1382 perfect for any

single Li-Ion battery-powered application.

Typical supply current with no load is 95μA and decreases to

0.04μA in shutdown mode.

An internal synchronous switch increases efficiency and

eliminates the need for an external Schottky diode. The

internally fixed switching frequency (2MHz, 3MHz or 4MHz)

allows the usage of small surface mount external components.

Very low output voltages can be delivered with the internal

0.58V feedback reference voltage.

The AS1382 is available in a 6-pin WL-CSP package.

Ordering Information and Content Guide appear at end of

datasheet.

Key Benefits & Features

The benefits and features of this device are listed below:

Figure 1:

Added Value of Using AS1382

Applications

The device is ideal for mobile communication devices, laptops

and PDAs, ultra-low-power systems, medical instruments, or

any other space-limited application with low

power-consumption requirements.

Benefits

Features

Ideal for single Li-Ion battery powered applications

• Wide input voltage range (2.7V to 5.5V)

Extended battery life

• High efficiency up to 96%

Supports a variety of end applications

• Output voltage range (0.58V to 3.35V)

• Output current of 1A

• Switching frequency: 2MHz, 3MHz, 4MHz

• High efficiency/low noise operation

Over – temperature protection and shutdown

• Integrated temperature monitoring

Cost effective, small package

• WL-CSP6 with 0.4mm pitch

General Description