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AS1334-BTDT-12 PDF预览

AS1334-BTDT-12

更新时间: 2024-01-10 05:59:49
品牌 Logo 应用领域
艾迈斯 - AMSCO 转换器
页数 文件大小 规格书
17页 1733K
描述
650mA, Ultra low Ripple Step Down DC/DC Converter

AS1334-BTDT-12 技术参数

是否无铅:不含铅生命周期:Active
Reach Compliance Code:unknown风险等级:5.74
Is Samacsys:NBase Number Matches:1

AS1334-BTDT-12 数据手册

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Datasheet  
AS1334  
650mA, Ultra low Ripple Step Down DC/DC Converter  
1 General Description  
2 Key Features  
Output Voltage Ripple: 2mV  
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.  
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 16)  
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 Output Voltages:  
- 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.3V  
Fixed-frequency PWM operation minimizes RF  
interference. Shutdown function turns the device off and  
reduces battery consumption to 0.01µA (typ.).  
Maximum Load Capability of 650mA  
97% High Efficiency, 94% Average Efficiency  
Current Overload Protection  
Thermal Overload Protection  
Power-OK  
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.  
Soft Start  
Low Dropout Voltage (140 mΩ 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  
3.3 µH  
PVIN  
SW  
VIN  
VOUT  
10 µF  
VDD  
FB  
AS1334  
10 µF  
EN  
ON  
POK  
OFF  
SGND  
PGND  
www.austriamicrosystems.com  
Revision 1.04  
1 - 17  

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