TPS56300 Datasheet, PDF (1/34 Pages) Texas Instruments – DUAL-OUTPUT LOW-INPUT-VOLTAGE DSP POWER SUPPLY CONTROLLER WITH SEQUENCING

TPS56300
DUAL-OUTPUT LOW-INPUT-VOLTAGE
DSP POWER SUPPLY CONTROLLER WITH SEQUENCING
SLVS261A – DECEMBER 1999 – JANUARY 2000
D 2.8 V – 5.5 V Input Voltage Range
D Programmable Dual Output Controller
Supports Popular DSP and Microcontroller
VID0
Core and I/O Voltages
VID1
– Switching Regulator Controls Core
SLOWST
Voltage
VHYST
– Low Dropout Controller Regulates I/O
VREFB
Voltage
VSEN–RR
D Programmable Slow-Start Ensures
ANAGND
Simultaneous Powerup of Both Outputs
BIAS
D
D
Power Good Output Monitors Both Outputs
VLDODRV
CPC1
Fast Ripple Regulator Reduces Bulk
V_CC
Capacitance for Lower System Costs
CPC2
D ±1.5% Reference Voltage Tolerance
VDRV
D Efficiencies Greater than 90%
DRVGND
D Overvoltage, Undervoltage, and Adjustable
Overcurrent Protection
D Drives Low-Cost Logic Level N-Channel
MOSFETs Through Entire Input Voltage
Range
D Evaluation Module TPS56300EVM–139
Available
PWP PACKAGE
(TOP VIEW)
1
28
2
27
3
26
4
25
5
24
6 _Thermal 23
7
Pad
22
8
21
9
20
10
19
11
18
12
17
13
16
14
15
DROOP
OCP
IOUT
PWRGD
VSEN–LDO
NGATE–LDO
INHIBIT
IOUTLO
HISENSE
LOSENSE/LOHIB
HIGHDR
BOOT
BOOTLO
LDWDR
PowerPAD™ Package
description
The high performance TPS56300 synchronous-buck regulator provides two supply voltages to power the core
and I/O of digital signal processors, such as the ‘C6000 family. The ripple regulator, using hysteretic control with
droop compensation, is configured for the core voltage and features fast transient response time reducing
output bulk capacitance (continued).
typical design
See Note A
See Note A
+
NOTE A: See Table 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.
PowerPAD is a trademark of 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.
Copyright © 2000, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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