AS1332 austriamicrosystems AG, AS1332 Datasheet

AS1332

Manufacturer Part Number

AS1332

Description

650mA Step-Down DC-DC Converter

Manufacturer

austriamicrosystems AG

Datasheet

1.AS1332.pdf (19 pages)

Current page: 1 of 19
Download datasheet (2Mb)

A S 1 3 3 2

6 5 0 m A , St e p - D o w n D C - D C C o n v e r t e r f o r R F P o w e r A m p l i f i e r s

1 General Description

The AS1332 is a step-down DC-DC converter designed

to power radiofrequency (RF) power amplifiers (PAs)

from a single Li-Ion battery. The device also achieves

high-performance in mobile phones and similar RF PA

applications.

The AS1332 steps down an input voltage of 2.7V to 5.5V

to output voltages ranging from 1.3V to 3.16V. Using a

controlling power levels and efficiency of the RF PA.

The RF interferences are minimized due to the fixed-

frequency PWM operation. The battery consumption is

reduced to 0.01µA (typ.) during shutdown.

Because of the high switching frequencies (2 MHz) tiny

surface-mount components can be used. Additional to

the small size the amount is also small. Only three

external components are required, an inductor and two

ceramic capacitors.

The AS1332 is available in a 8-pin WL-CSP.

www.austriamicrosystems.com

Figure 1. Typical Application Circuit

CON

analog input, the output voltage is set for

2.7V to 5.5V

0.52V to 1.27V

10 µF

CON

VCON

PVIN

AS1332

Revision 1.01

PGND

2 Key Features

3 Applications

The AS1332 is an ideal solution for cellular phones,

hand-held radios, RF PC cards, and battery powered RF

devices.

VDD

3.16V)

400mA) from internal synchronous rectification

PWM Switching Frequency: 2MHz

Single Lithium-Ion Cell Operation (2.7V to 5.5V)

Dynamic Programmable Output Voltage (1.3V to

Maximum load capability of 650mA

High Efficiency (96% Typ at 3.6V

Current Overload Protection

Thermal Overload Protection

Soft Start

8-pin WL-CSP

AGND

3.3 µH

4.7 µF

OUT

= 2.5 x V

1.3V to 3.16V

www.DataSheet4U.com

, 3.16V

OUT

CON

OUT

D a ta s h e e t

1 - 19

Related parts for AS1332

Related keywords

AS1332 datasheet
AS1332 data sheet
AS1332 pdf datasheet
AS1332 component
AS1332 part
AS1332 distributor
AS1332 RoHS
AS1332 datasheet download