AS1324 datasheet(1/21 Pages) AMSCO

tên linh kiện	AS1324

Giải thích chi tiết về linh kiện	1.5MHz, 600mA Synchronous DC/DC Conver ter

PDF	21 Pages

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nhà sản xuất	AMSCO [ams AG]

Trang chủ	http://www.ams.com

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www.ams.com/DC-DC_Step-Up/AS1324

Revision 1.06

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1 General Description

The AS1324 is a high-efficiency, constant-frequency synchronous

buck converter available in adjustable- and fixed-voltage versions.

The wide input voltage range (2.7V to 5.5V), automatic powersave

mode and minimal external component requirements make the

AS1324 perfect for any single Li-Ion battery-powered application.

Typical supply current with no load is 30µA and decreases to

≤1µA

in shutdown mode.

The AS1324 is available as the standard versions listed in Table 1.

An internal synchronous switch increases efficiency and eliminates

the need for an external Schottky diode. The internally fixed

switching frequency (1.5MHz) allows for the use of small surface

mount external components.

Very low output voltages can be delivered with the internal 0.6V

feedback reference voltage.

The AS1324 is available in a 5-pin TSOT-23 package.

Figure 1. Typical Application Diagram – High Efficiency Step

Down Converter

2 Key Features

High Efficiency: Up to 96%

Output Current: 600mA

Input Voltage Range: 2.7V to 5.5V

Constant Frequency Operation: 1.5MHz

Variable- and Fixed-Output Voltages

No Schottky Diode Required

Automatic Powersave Operation

Low Quiescent Current: 30µA

Internal Reference: 0.6V

Shutdown Mode Supply Current:

≤1µA

Thermal Protection

5-pin TSOT-23 Package

3 Applications

The device is ideal for mobile communication devices, laptops and

PDAs, ultra-low-power systems, threshold detectors/discriminators,

telemetry and remote systems, medical instruments, or any other

space-limited application with low power-consumption requirements.

Table 1. Standard Versions

Model

Output Voltage

AS1324-AD

Adjustable via External Resistors

AS1324-12

Fixed: 1.2V

AS1324-15

Fixed: 1.5V

AS1324-18

Fixed: 1.8V

AS1324-18

COUT

10µF

CIN

10µF

GND

2

VIN = 2.7V to 5.5V

VOUT = 1.8V, 600mA

4.7µH

1

EN

5

VOUT

4

VIN

3

SW

5 VOUT

AS1324-18

4 VIN

2

GND

3

SW

1

EN

Số phần tương tự - AS1324

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
ams AG	AS1324	910Kb / 20P	1.5MHz, 600mA, DC/DC Step-Down Regulator
	AS1324-12	910Kb / 20P	1.5MHz, 600mA, DC/DC Step-Down Regulator
	AS1324-15	910Kb / 20P	1.5MHz, 600mA, DC/DC Step-Down Regulator
	AS1324-18	910Kb / 20P	1.5MHz, 600mA, DC/DC Step-Down Regulator
	AS1324-AD	910Kb / 20P	1.5MHz, 600mA, DC/DC Step-Down Regulator

More results

Mô tả tương tự - AS1324

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Linear Technology	LTC3407	204Kb / 16P	Dual Synchronous, 600mA, 1.5MHz Step-Down DC/DC Regulator
Linear Technology	LTC3407A	282Kb / 16P	Dual Synchronous 600mA, 1.5MHz Step-Down DC/DC Regulator
Linear Integrated Syste...	LTC3407AIDD	205Kb / 16P	Dual Synchronous, 600mA, 1.5MHz Step-Down DC/DC Regulator
ams AG	AS1330	1Mb / 18P	4MHz, Low Vol tage, DC-DC Step-Up Conver ter
Leshan Radio Company	LR8506	472Kb / 10P	1.5MHz 600mA Synchronous
Union Semiconductor, In...	UM3500	368Kb / 11P	600mA, 1.5MHz, Synchronous Step-Down DC-DC Converter
Linear Technology	LTC3407	224Kb / 16P	Dual Synchronous, 600mA, 1.5MHz Step-Down DC/DC Regulator
Linear Technology	LTC3407A	294Kb / 16P	Dual Synchronous 600mA, 1.5MHz Step-Down DC/DC Regulator
Analog Microelectronics	AME5252	158Kb / 18P	Dual Synchronous, 600mA, 1.5MHz Step-Down DC/DC Converter
Union Semiconductor, In...	UM3500	450Kb / 11P	600mA, 1.5MHz, Synchronous Step-Down DC-DC Converter

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