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參數資料
| 型號： | TPS650243QRHBRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32 |
| 封裝： | 5 X 5 MM, GREEN, PLASTIC, QFN-32 |
| 文件頁數： | 1/33頁 |
| 文件大小： | 809K |
| 代理商： | TPS650243QRHBRQ1 |
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SLVS994A
– SEPTEMBER 2009 – REVISED MARCH 2011
POWER MANAGEMENT ICs FOR Li-ION POWERED SYSTEMS
1
FEATURES
APPLICATIONS
PDA
Qualified for Automotive Applications
Cellular/Smart Phone
1.6-A, 1.0-A or 0.8-A, 97% Efficient Step-Down
GPS
Converter for System Voltage (VDCDC1)
Digital Still Camera
– 3.3-V or 2.80-V or Adjustable
Split Supply DSP and Microprocessor
1.6-A, 1.0-A or 0.8-A, up to 95% Efficient
Solutions: Samsung ARM-Based Processors,
Step-Down Converter for Memory Voltage
etc.
(VDCDC2)
– 1.8 V or 2.5 V or Adjustable
DESCRIPTION
0.8-A 90% Efficient Step-Down Converter for
The TPS65024x are integrated Power Management
Processor Core (VDCDC3)
ICs for applications powered by one Li-Ion or
Li-Polymer cell, which require multiple power rails.
Three Selectable Voltages for VDCDC3
The
TPS65024x
provide
three
highly
efficient,
– TPS650241
step-down converters targeted at providing the core
– DEFDCDC3 = LOW: VO = 0.9 V
voltage, peripheral, I/O and memory rails in a
processor
based
system.
All
three
step-down
– DEFDCDC3 = HIGH: VO = 1.375 V
converters enter a low power mode at light load for
– TPS650243
maximum efficiency across the widest possible range
– DEFDCDC3 = LOW: VO = 1.0 V
of load currents. The converters can be forced into
fixed frequency PWM mode by pulling the MODE pin
– DEFDCDC3 = HIGH: VO = 1.2 V
high. The TPS65024x also integrate two general
– TPS650244
purpose 200-mA LDO voltage regulators, which are
– DEFDCDC3 = LOW: VO = 1.55 V
enabled with an external input pin. Each LDO
– DEFDCDC3 = HIGH: VO = 1.6 V
operates with an input voltage range between 1.5 V
and 6.5 V, allowing them to be supplied from one of
30-mA LDO for Vdd_alive
the step-down converters or directly from the battery.
Two 200-mA General Purpose LDOs (LDO1
The output voltage of the LDOs can be set with an
and LDO2)
external
resistor
divider
for
maximum
flexibility.
Dynamic Voltage Management for Processor
Additionally there is a 30-mA LDO typically used to
provide power in a processor based system to a
Core
voltage rail that is always on. TPS65024x provide
LDO1 and LDO2 Voltage Externally Adjustable
voltage scaling on DCDC3 using the DEFDCDC3 pin.
Separate Enable Pins for Inductive Converters
This pin either needs to be connected to a logic HIGH
or logic LOW level to set the output voltage of
2.25-MHz Switching Frequency
DCDC3. TPS65024x come in a small 5-mm x 5-mm
85-
μA Quiescent Current
32-pin QFN package (RHB).
Thermal Shutdown Protection
ORDERING INFORMATION(1)
TA
PACKAGE(2)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
TPS650241QRHBRQ1
TPS650241Q
–40°C to 125°C
QFN
– RHB
Reel of 3000
TPS650243QRHBRQ1
TPS650243Q
–40°C to 85°C
TPS650244IRHBRQ1
TPS650244Q
(1)
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2)
Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
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
2009–2011, 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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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS650243RHBR | 功能描述:電池管理 Pwr Mgmt ICs for Li-Ion Pwred Systems RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| TPS650243RHBRG4 | 功能描述:電池管理 Pwr Mgmt ICs for Li Ion Pwred Systems RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| TPS650243RHBT | 功能描述:電池管理 Pwr Mgmt ICs for Li-Ion Pwred Systems RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝: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:電池管理 Pwr Mgmt ICs for Li Ion Pwred Systems RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
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