参数资料
型号: AS1334-BTDT
厂商: ams
文件页数: 2/19页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 0.65A 8TDFN
设计资源: Design Support Tool
标准包装: 1,000
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 1.2 V ~ 3.4 V
输入电压: 2.7 V ~ 5.5 V
PWM 型: 电流模式
频率 - 开关: 2MHz
电流 - 输出: 650mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-WDFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 8-TDFN(3x3)
Datasheet
AS1334
650mA, Ultra low Ripple Step Down DC/DC Converter
1 General Description
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.
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-frequency PWM operation minimizes RF interference.
Shutdown function turns the device off and reduces battery
consumption to 0.01μA (typ).
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.
2 Key Features
Output Voltage Ripple: 2mV
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 17 )
Fixed Output Voltages:
- 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.3V
Maximum Load Capability of 650mA
97% High Efficiency, 94% Average Efficiency
Current Overload Protection
Thermal Overload Protection
Power-OK
Soft Start
Low Dropout Voltage (140 m Ω 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
V IN
PV IN
SW
3.3 μH
V OUT
10 μF
VDD
AS1334
FB
10 μF
ON
OFF
EN
PGND
SGND
POK
Revision 1.09
1 - 18
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AS1334-BTDT-12 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:650mA, Ultra low Ripple Step Down DC/DC Converter
AS1334-BTDT-15 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:650mA, Ultra low Ripple Step Down DC/DC Converter
AS1334-BTDT-18 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:650mA, Ultra low Ripple Step Down DC/DC Converter
AS1334-BTDT-25 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:650mA, Ultra low Ripple Step Down DC/DC Converter
AS1334-BTDT-30 功能描述:IC REG BUCK SYNC 3V 0.65A 8TDFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:50 系列:- 类型:升压(升压) 输出类型:可调式 输出数:1 输出电压:5 V ~ 25 V 输入电压:2.3 V ~ 5.5 V PWM 型:电流模式 频率 - 开关:600kHz,1.2MHz 电流 - 输出:1A 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP,8-MSOP(0.118",3.00mm 宽) 包装:管件 供应商设备封装:8-MSOP