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参数资料
| 型号： | AS1334-BTDT-30 |
| 厂商： | AUSTRIAMICROSYSTEMS AG |
| 元件分类： | DC/DC变换器 |
| 英文描述： | 650mA LowRipple Buck Converter |
| 文件页数： | 1/18页 |
| 文件大小： | 745K |
| 代理商： | AS1334-BTDT-30 |
AS1334
650mA, Ultra low Ripple Step Down DC/DC Converter
wwwaustriamcrosystems.com/DC-DC_Step-Down/AS1334
Revision 1.09
1 - 18
Datasheet
1 General Description
The AS1334 is a step-down DC-DC converter designed to power
portable applications froma single Li-Ion battery. The device also
achieves high-performance in mobile phones and other applications
requiring low dropout voltage.
The AS1334 operates froman 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 PWMoperation mnimzes 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 ceramc capacitors are required.
Figure 1. AS1334 - Typical Application Circuit
2 Key Features
Output Voltage Ripple: 2mV
PWMSwitching 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
MaximumLoad 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.
AS1334
PGND
SGND
EN
PV
IN
VDD
SW
FB
10 μF
3.3 μH
V
OUT
V
IN
10 μF
ON
OFF
POK
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|---|---|
| AS1335-BTDT-100 | 1.5A Buck Converter |
| AS1335-BTDT-AD | 1.5A Buck Converter |
| AS1339-BWLT | 650mA Buck+2x10mA LDOs RF-PA; Package Type: CS-WLP-16 |
| AS1340A-BTDT-10 | 50V, 100mA, 1MHz, Boost |
| AS1341-BTDT | 20V, Hyst.600mA Buck Converter; Package Type: TDFN(3x3)-8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AS1334-BTDT-33 | 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-XX | 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:650mA, Ultra low Ripple Step Down DC/DC Converter |
| AS1335 | 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:1.5A, 1.5MHz, Synchronous DC/DC Step-Down Converter |
| AS1335_05 | 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:1.5A, 1.5MHz, Synchronous DC/DC Step-Down Converter |
| AS1335-BTDT-100 | 功能描述:IC REG BUCK SYNC 1V 1.5A 10WFDFN 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 |
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