- 您现在的位置：买卖IC网 > PDF目录16621 > AT73C239 (Atmel)IC PWR MGMT FOR MOBILES 16QFN PDF资料下载
参数资料
| 型号： | AT73C239 |
| 厂商： | Atmel |
| 文件页数： | 1/4页 |
| 文件大小： | 0K |
| 描述： | IC PWR MGMT FOR MOBILES 16QFN |
| 标准包装： | 4,000 |
| 应用： | 无线发射器应用 |
| 电源电压： | 3 V ~ 3.6 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-QFN |
| 供应商设备封装： | 16-QFN（3x3） |
| 包装： | 托盘 |
Features
?
?
?
?
?
?
Main Supply 3.0V to 3.6V
Independent 2.5V to 3.6V Auxiliary Supply for Backup Section
Internal State Machine for Startup
25 mA/1.8V-2.75V Linear Low Drop Out Regulator with High PSRR and Low Noise
(LDO1)
30 mA/1.5V-1.8V Linear Low Drop Out Regulator with High PSRR and Low Noise
(LDO2)
60 mA/1.23V-1.5V-1.8V Linear Low Drop Out Regulator with High PSRR (LDO3)
?
?
?
?
?
?
?
?
?
2 mA/1.2V-1.5V-1.8V Linear Low Drop Out Regulator with Very Low Quiescent Current
(LDO4)
HPBG Economic High Performance Voltage Reference for LDO Supply to RF Sections
LPBG Low Power Voltage Reference to LDO4 During Backup Battery Operation
Internal Oscillator Generates Internal Master Clock
Internal Reset Generator for Main Supply
Additional External Reset Input
Two Wire Interface (TWI) for Independent Activation and Output Voltage Programming
for Each LDO
Available in 3 x 3 x 0.9 mm 16-pin QFN Package
Applications: GPS Modules, WLAN Devices, Wireless Modules
Power
Management for
Mobiles (PM)
AT73C239
4-channel Power
1. Description
The AT73C239 is a 4-channel Power Supply Power Management Unit (PMU) avail-
able in a QFN 3 x 3 mm package. It is a fully integrated, low cost, combined Power
Management device for wireless modules, GPS and WLAN devices. It integrates four
Linear Low Drop Out (LDO) Regulators, three of which provide high-accuracy RF per-
formance and one (LDO4) with very low quiescent current that is supplied by an
external backup battery. A Low Power Bandgap (LPBG) requiring no external capaci-
tor for decoupling, is used as reference voltage for LDO4 and starts when VBAT is
Management for
Wireless
Modules
Summary
present. LDO4 regulates output voltage with extremely low quiescent current, maxi-
mizing the lifetime of the backup battery. An Internal State Machine manages the
startup of the other LDOs in the order of LDO3 then LDO1 then LDO2. An economic
High Power Bandgap (HPBG) provides highly accurate, low noise voltage reference
to LDOs 1, 2, 3. HPBG operates in switching mode thereby decreasing its current con-
sumption and becomes inactive when not directly supplied by VIN current. When the
RF LDOs are in idle mode, quiescent current is decreased to a minimum.
The AT73C239 features a Two-wire Interface (TWI) to increase the efficiency of the
system by disabling LDOs when not needed.
6201AS–PMAAC–24-Oct-05
相关PDF资料 |
PDF描述 |
|---|---|
| VI-BTX-EX | CONVERTER MOD DC/DC 5.2V 75W |
| GMM11DRKN-S13 | CONN EDGECARD 22POS .156 EXTEND |
| AT73C213 | IC PWR MGMT FOR MOBILES 32QFN |
| VI-B1J-EW | CONVERTER MOD DC/DC 36V 100W |
| EVAL-ADM3051EBZ | EVAL BOARD FOR ADM3051 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT73C239_07 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Power Management and Analog Companions (PMAAC) |
| AT73C239-EK | 功能描述:开发板和工具包 - ARM AT73C239 EVAL KIT RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V |
| AT73C240 | 功能描述:音频数/模转换器 IC NGD MONOLITHIC NUMERIC IC RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel |
| AT73C240B | 功能描述:音频数/模转换器 IC MONOLITHIC NUM IC RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel |
| AT73C240C | 功能描述:音频数/模转换器 IC NGD : MONOLITHIC NUMERIC IC RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。