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| 型号： | TPS650243RHBR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32 |
| 封装： | 5 X 5 MM, GREEN, PLASTIC, QFN-32 |
| 文件页数： | 1/35页 |
| 文件大小： | 955K |
| 代理商： | TPS650243RHBR |
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1
FEATURES
APPLICATIONS
DESCRIPTION
www.ti.com .............................................................................................................................................................. SLVS774B – JUNE 2007 – REVISED JULY 2009
Power Management ICs for Li-Ion Powered Systems
Thermal Shutdown Protection
1.6A, 1.0A or 0.8A, 97% Efficient Step-Down
Converter for System Voltage (VDCDC1)
PDA
–
3.3V or 2.80V or Adjustable
Cellular/Smart Phone
1.6A, 1.0A or 0.8A, up to 95% Efficient
GPS
Step-Down Converter for Memory Voltage
Digital Still Camera
(VDCDC2)
Split Supply DSP and P Solutions:, Samsung
–
1.8V or 2.5V or Adjustable
ARM-Based Processors, etc.
0.8A, 90% Efficient Step-Down Converter for
Processor Core (VDCDC3)
Two Selectable Voltages for VDCDC3
The TPS65024x are integrated Power Management
–
TPS650240:
ICs for applications powered by one Li-Ion or
–
DEFDCDC3= LOW: VO = 1.0V
Li-Polymer cell, which require multiple power rails.
The
TPS65024x
provide
three
highly
efficient,
–
DEFDCDC3= HIGH: VO = 1.3V
step-down converters targeted at providing the core
–
TPS650241:
voltage, peripheral, I/O and memory rails in a
–
DEFDCDC3= LOW: VO = 0.9V
processor
based
system.
All
three
step-down
converters enter a low power mode at light load for
–
DEFDCDC3= HIGH: VO= 1.375V
maximum efficiency across the widest possible range
–
TPS650242:
of load currents. The converters can be forced into
–
DEFDCDC3= LOW: VO = 1.0V
fixed frequency PWM mode by pulling the MODE pin
–
DEFDCDC3= HIGH: VO = 1.5V
high. The TPS65024x also integrate two general
purpose 200mA LDO voltage regulators, which are
–
TPS650243:
enabled with an external input pin. Each LDO
–
DEFDCDC3= LOW: VO = 1.0V
operates with an input voltage range between 1.5V
–
DEFDCDC3= HIGH: VO = 1.2V
and 6.5V allowing them to be supplied from one of
the step-down converters or directly from the battery.
–
TPS650244:
The output voltage of the LDOs can be set with an
–
DEFDCDC3= LOW: VO = 1.55V
external
resistor
divider
for
maximum
flexibility.
–
DEFDCDC3= HIGH: VO = 1.6V
Additionally there is a 30mA LDO typically used to
provide power in a processor based system to a
–
TPS650245:
voltage rail that is always on. TPS65024x provide
–
DEFDCDC3= LOW: VO = 0.9V
voltage scaling on DCDC3 using the DEFDCDC3 pin.
–
DEFDCDC3= HIGH: VO = 1.1V
This pin either needs to be connected to a logic HIGH
or logic LOW level to set the output voltage of
30mA LDO for Vdd_alive
DCDC3. TPS65024x come in a small 5mm x 5mm 32
2 × 200mA General Purpose LDOs (LDO1 and
pin QFN package (RHB).
LDO2)
Dynamic Voltage Management for Processor
Core
LDO1 and LDO2 Voltage Externally Adjustable
Separate Enable Pins for Inductive Converters
2.25MHz Switching Frequency
85A Quiescent Current
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright 2007–2009, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
相关PDF资料 |
PDF描述 |
|---|---|
| TPS650241RHBRG4 | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32 |
| TPS650243RHBT | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32 |
| TPS650240RHBT | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32 |
| TPS650244RHBR | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32 |
| TPS650242RHB | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS650243RHBRG4 | 功能描述:电池管理 Pwr Mgmt ICs for Li Ion Pwred Systems RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| TPS650243RHBT | 功能描述:电池管理 Pwr Mgmt ICs for Li-Ion Pwred Systems RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| TPS650243RHBT | 制造商:Texas Instruments 功能描述:3 Buck and 3 LDO - 制造商:Texas Instruments 功能描述:IC, POWER MANAGEMENT, QFN-32 |
| TPS650243RHBTG4 | 功能描述:电池管理 Pwr Mgmt ICs for Li Ion Pwred Systems RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| TPS650244IRHBRQ1 | 功能描述:电池管理 AC 6Ch Pwr Mgmt Unit RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
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