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| 型号： | TPS65058RGET |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.8 A DUAL SWITCHING CONTROLLER, 2475 kHz SWITCHING FREQ-MAX, PQCC32 |
| 封装： | 4 X 4 MM, GREEN, PLASTIC, VQFN-32 |
| 文件页数： | 1/26页 |
| 文件大小： | 1898K |
| 代理商： | TPS65058RGET |
1
FEATURES
APPLICATIONS
L2
ENABLE
VCC
FB_DCDC2
PGND2
AGND
ENABLE
VLDO2
200 mA LDO
VLDO2
VLDO3
DCDC1(I/O)
VINDCDC1/2
L1
PGND1
DCDC2(core)
VLDO1
400 mA LDO
VLDO3
200 mA LDO
VIN
ENABLE
VIN
10uF
10 W
TPS 65058
ENABLE
MODE
RESET
R19
I/OVoltage
VLDO1
VIN
3.3 V
PGOOD1
PGOOD2
Voltage
Switching(1/0)
2.2 F
m
Voltage
Switching(1/0)
2.2 F
m
1 F
m
EN_DCDC1
EN_DCDC2
DEF_DCDC2
VIN_LDO1
EN_LDO1
DEF_LDO
VIN_LDO2/
EN_LDO2
EN_LDO3
STEP-DOWN
CONVERTER
STEP-DOWN
CONVERTER
22 F
m
2.2 H
m
FB_DCDC
2.2 H
m
1.8V/1.2V
10 F
m
3.3V/3.3V
4.7 F
m
1.8V/1.2V
1.8V/1.3V
2.2 F
m
2.2 F
m
DESCRIPTION
www.ti.com................................................................................................................................................... SLVS851A – MAY 2008 – REVISED SEPTEMBER 2008
2.25 MHz Dual STEP DOWN CONVERTER
WITH 3 LOW-INPUT VOLTAGE LDOs
Satellite Radio Modules
2
Up To 95% Efficiency
Output Current for DC/DC Converters:
–
DCDC1 = 0.6A; DCDC2 = 1A
V
IN Range for DC/DC Converters From
2.5V to 6V
Dynamic Voltage Switching for Processor
Core Supply Supported
2.25MHz Fixed Frequency Operation
Power Save Mode at Light Load Current
180° Out-of-Phase Operation
Output Voltage Accuracy in PWM mode ±1%
Total Typical 32A Quiescent Current for Both
DC/DC Converters
100% Duty Cycle for Lowest Dropout
One General-Purpose 400mA LDO
Two General-Purpose 200mA LDOs
V
IN Range for LDOs from 1.5V to 6.5V
Reset Generator and Power Monitor
Available in a 4 mm x 4 mm 24-Pin QFN
Package
NOTE: Other voltage options available upon
request.
Contact
your
Texas
Instruments representative.
The TPS65058 is an integrated Power Management IC for applications powered by one Li-Ion or Li-Polymer cell,
which require multiple power rails. The TPS65058 provides two highly efficient, 2.25MHz step down converters
targeted at providing the core voltage and I/O voltage in a processor based system. Both step-down converters
enter a low power mode at light load for maximum efficiency across the widest possible range of load currents.
For low noise applications, the devices can be forced into fixed frequency PWM mode by pulling the MODE pin
high. Both converters allow the use of small inductors and capacitors to achieve a small solution size. TPS65058
provides an output current of up to 0.6A on the DCDC1 converter, and up to 1A on the DCDC2 converter. The
TPS65058 also integrates one 400mA LDO and two 200mA LDO voltage regulators, which can be turned on/off
using separate enable pins on each LDO. Each LDO operates with an input voltage range between 1.5V and
6.5V allowing them to be supplied from one of the step down converters or directly from the main battery.
The TPS65058 comes in a small 24-pin leadless package (4mm × 4mm QFN) with a 0,5mm pitch.
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.
2
PowerPAD is a trademark of Texas Instruments.
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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| TPS65058RGETG4 | 功能描述:PMIC 解决方案 5Ch Pwr Mgmt IC 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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| TPS65070RSLR | 功能描述:PMIC 解决方案 5Ch Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| TPS65070RSLT | 功能描述:PMIC 解决方案 5Ch Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| TPS65070RSLT | 制造商:Texas Instruments 功能描述:IC POWER MANAGEMENT QFN-48 制造商:Texas Instruments 功能描述:IC, POWER MANAGEMENT, QFN-48 |
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