參數(shù)資料
型號： TPS56100PWPR
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： Voltage-Mode SMPS Controller
中文描述： 電壓模式開關(guān)電源控制器
文件頁數(shù)： 1/34頁
文件大?。?/td> 811K
代理商： TPS56100PWPR
TPS56302
DUAL-OUTPUT LOW-INPUT-VOLTAGE
DSP POWER SUPPLY CONTROLLER WITH SEQUENCING
SLVS289A – MARCH 2000 – REVISED OCTOBER 2000
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
2.8 V – 5.5 V Input Voltage Range
Programmable Dual Output Controller
Supports Popular DSP, FPGA and
Microcontroller Core and I/O Voltages
– Switching Regulator Controls I/O Voltage
– Low Dropout Controller Regulates Core
Voltage
Adjustable Slow-Start for Simultaneous
Powerup of Both Outputs
Power Good Output Monitors Both Outputs
Fast Ripple Regulator Reduces Bulk
Capacitance for Lower System Costs
±
1.5% Reference Voltage Tolerance
Efficiencies Greater Than 90%
Overvoltage, Undervoltage, and Adjustable
Overcurrent Protection
Drives Logic Level N-Channel MOSFETs
Through Entire Input Voltage Range
Evaluation Module TPS56302EVM–163
Available
description
The high-performance TPS56302 synchronous-buck regulator provides two supply voltages to power the core
and I/O of digital signal processors. The TPS56302 is identical to the TPS56300 except that the reference
voltages of the LDO and switching regulator have been reversed. The switching regulator, using hysteretic
control with droop compensation, supports high current and efficiency for the I/O and other peripheral
components. The LDO controller, suitable for powering the core voltage, drives an external N-channel power
MOSFET and functions as an LDO regulator and as a power distribution switch.
typical design
+
+
+
U1
TPS56302PWP
VCC
PWRGD
NGATE–LDO
VSEN–LDO
CPC1
CPC2
VREFB
VHYST
DROOP
OCP
IOUT
SLOWST
VID0
VID1
BIAS
VLDODRV
VDRV
ANAGND
PwrPad
DSP
VCORE
VI/O
Data
Data Bus
PERIPHERAL
VI
(2.8 V – 5.5 V)
INHIBIT
IOUTLO
HISENSE
HIGHDR
VSEN–RR
LOSENSE/LOHIB
BOOT
BOOTLO
LOWDR
DRVGND
See Table 1
See Table 1
+
+
Copyright
2000, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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.
PowerPAD is a trademark of Texas Instruments.
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VID0
VID1
SLOWST
VHYST
VREFB
VSEN–RR
ANAGND
BIAS
VLDODRV
CPC1
V
CC
CPC2
VDRV
DRVGND
DROOP
OCP
IOUT
PWRGD
VSEN–LDO
NGATE–LDO
INHIBIT
IOUTLO
HISENSE
LOSENSE/LOHIB
HIGHDR
BOOT
BOOTLO
LOWDR
PWP PowerPAD
PACKAGE
(TOP VIEW)
Thermal
Pad
OUTPUTS
VOUT–LDO
VOUT–Switcher
TPS56302
1.3 V TO 2.5 V
1.3 V TO 3.3 V
TPS56300
1.3 V TO 3.3 V
1.3 V TO 2.5 V
AVAILABLE VID CODE RANGES
NOTE: See Table 1 for actual VID codes.
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