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参数资料
| 型号： | TPS650250RHBR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32 |
| 封装： | 5 X 5 MM, GREEN, PLASTIC, QFN-32 |
| 文件页数： | 1/31页 |
| 文件大小： | 846K |
| 代理商： | TPS650250RHBR |
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1
FEATURES
APPLICATIONS
DESCRIPTION
EN_DCDC1
ENABLE
VCC
VLDO1
200 mA LDO
VLDO1
VLDO2
VINDCDC1
VLDO2
200 mA LDO
VIN_LDO
ENABLE
VIN
MODE
1 mF
1R
10 mF
TPS650250
EN_LDO
Vbat
PWRFAIL
AGND1
I/Ovoltage
R19
L1
DEFDCDC1
VDCDC1
PGND1
DCDC1 (I/O)
STEP-DOWN
CONVERTER
1600 mA
R1
R2
EN_DCDC2
VINDCDC2
L2
DEFDCDC2
VDCDC2
PGND2
DCDC2
(memory)
STEP-DOWN
CONVERTER
800 mA
R3
R4
EN_DCDC3
VINDCDC3
L3
DEFDCDC3
VDCDC3
PGND3
DCDC3 (core)
STEP-DOWN
CONVERTER
800 mA
R7
R8
Vbat
Vdd_alive
VLDO3
30 mA LDO
2.2 mF
1 V
3.3 V / 2.8 V
oradjustable
2.5 V / 1.8 V
oradjustable
VCC
PWRFAIL_SNS
Vbat
Vref=1V
+
-
R11
R12
AGND2
PWM/ PFM
EN_Vdd_alive
ENABLE
R9
R10
R5
R6
10 mF
ENABLE
10 mF
ENABLE
2.2 mF
22 mF
2.2 mH
22 mF
2.2 mH
22 mF
2.2 mH
FB_LDO1
FB_LDO2
www.ti.com ........................................................................................................................................................................................... SLVS843 – DECEMBER 2008
Power Management IC for Li-Ion Powered Systems
The TPS650250 also integrates two general purpose
200mA LDO voltage regulators, which are enabled
1.6A, 97% Efficient Step-Down Converter for
with an external input pin. Each LDO operates with
System Voltage (VDCDC1)
an input voltage range between 1.5V and 6.5V
–
3.3V or 2.8V or Adjustable
allowing them to be supplied from one of the
step-down converters or directly from the battery. The
0.8A, up to 95% Efficient Step-Down Converter
output voltage of the LDOs can be set with an
for Memory Voltage (VDCDC2)
external
resistor
divider
for
maximum
flexibility.
–
1.8V or 2.5V or Adjustable
Additionally there is a 30mA LDO typically used to
0.8A, 90% Efficient Step-Down Converter for
provide power in a processor based system to a
Processor Core (VDCDC3)
voltage rail that is always on. TPS650250 comes in a
small 5mm x 5mm 32 pin QFN package (RHB).
adjustable output voltage on VDCDC3
30mA LDO for Vdd_alive
Functional Block Diagram
2 × 200mA General Purpose LDOs (LDO1 and
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
Thermal Shutdown Protection
Cellular/Smart Phone
GPS
Digital Still Camera
Split Supply DSP and P Solutions
Samsung ARM-Based Processors, etc.
The TPS650250 is an integrated Power Management
IC
for
applications
powered
by
one
Li-Ion
or
Li-Polymer cell, which require multiple power rails.
The TPS650250 provides three highly efficient,
step-down converters targeted at providing the core
voltage, peripheral, I/O and memory rails in a
processor
based
system.
All
three
step-down
converters enter a low power mode at light load for
maximum efficiency across the widest possible range
of load currents. The converters can be forced into
fixed frequency PWM mode by pulling the MODE pin
high.
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 2008, 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.
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相关代理商/技术参数 |
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| TPS650250RHBT | 功能描述:电池管理 Power Mgmt IC for Li-Ion Pwr Sys 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 |
| TPS650250RHBT | 制造商:Texas Instruments 功能描述:IC POWER MANAGEMENT QFN-32 制造商:Texas Instruments 功能描述:IC, POWER MANAGEMENT, QFN-32 |
| TPS65030EVM-162 | 功能描述:电源管理IC开发工具 PWR MGMT IC RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| TPS65030YZKR | 功能描述:PMIC 解决方案 Pwr Mng IC w/3 Charge Pumps & 1 LDO RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| TPS65030YZKT | 功能描述:PMIC 解决方案 Pwr Mng IC w/3 Charge Pumps & 1 LDO RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
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