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AS1337B-BTDT PDF预览

AS1337B-BTDT

更新时间: 2024-02-11 16:46:22
品牌 Logo 应用领域
艾迈斯 - AMSCO 转换器开关光电二极管输出元件升压转换器
页数 文件大小 规格书
14页 912K
描述
200mA, DC-DC Step-Up Converter with Buck Mode

AS1337B-BTDT 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:SON包装说明:HVSON,
针数:8Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.8其他特性:OUTPUT ADJUSTABLE MODE FROM 2.5 TO 5 VOLT; 5 VOLT OUTPUT ALSO AVAILABLE
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:CURRENT-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:4.5 V
最小输入电压:0.65 V标称输入电压:1.2 V
JESD-30 代码:S-PDSO-N8JESD-609代码:e3
长度:3 mm功能数量:1
端子数量:8最高工作温度:85 °C
最低工作温度:-45 °C标称输出电压:3.3 V
封装主体材料:PLASTIC/EPOXY封装代码:HVSON
封装形状:SQUARE封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):NOT SPECIFIED座面最大高度:0.8 mm
表面贴装:YES切换器配置:BUCK-BOOST
最大切换频率:1500 kHz温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)端子形式:NO LEAD
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:3 mm
Base Number Matches:1

AS1337B-BTDT 数据手册

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Datasheet  
AS1337  
200mA, DC-DC Step-Up Converter with Buck Mode  
1 General Description  
2 Key Features  
Input Voltage Range: 0.65V to 4.5V  
The AS1337 is a synchronous, fixed frequency,  
highefficiency DC-DC boost converter capable of  
supplying 3.3V @ 200mA from two AA Cells. Com-  
pact size and minimum external parts require-  
ments make these devices perfect for modern  
portable devices. The AS1337 offers automatic  
powersave mode to increase efficiency at light  
loads. For input voltages higher than VOUT the  
AS1337 will switch in a step down mode, so that a  
Buck Boost function is realized.  
Low Start-Up Voltage: 0.85V  
Output Voltage Range: 2.5V to 5.0V  
Delivers 200mA @ 3.3V (from two AA Cell)  
up to 97% Efficiency  
High-Speed Fixed-Frequency: 1.2MHz  
Single-Cell Operation  
Internal PMOS Synchronous Rectifier  
Automatic Powersave Operation  
Anti-Ringing Control Minimizes EMI  
Logic Controlled Shutdown (< 1µA)  
TDFN (3x3mm) 8-pin Package  
The AS1337A offers a shutdown mode where the  
battery is connected directly to the output enabling  
the supply of real-time-clocks or memories.  
The AS1337 offers a POK (open-drain) feature  
which detects output power fail of 10%.  
The AS1337 is available in a TDFN (3x3mm) 8-pin  
package.  
3 Applications  
The AS1337 is ideal for low-power applications  
where ultra-small size is critical as in medical diag-  
nostic equipment, hand-held instruments, pagers,  
digital cameras, remote wireless transmitters, MP3  
players, LCD bias supplies, cordless phones, GPS  
receivers, and PC cards.  
Figure 1. AS1337 - Typical Application Diagram – Dual Cell to 3.3V Synchronous Boost Converter  
L1  
4.7µH  
3.6V  
Buck Mode  
VOUT = 3.3V  
VOUT  
FB  
LX  
VIN = 2xAA  
1.6V to 3.6V  
COUT  
22µF  
V
=3.3V  
OUT  
VIN  
CIN  
10µF  
V
Curve  
IN  
AS1337  
On  
Off  
Boost Mode  
EN  
POK  
GND  
PGND  
1.6V  
www.austriamicrosystems.com  
Revision 1.03  
1 - 14  

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