TPS56100_16 Datasheet, PDF (1/30 Pages) Texas Instruments – HIGH-EFFICIENCY DSP POWER SUPPLY CONTROLLER FOR 5-V INPUT SYSTEMS

TPS56100
HIGHĆEFFICIENCY DSP POWER SUPPLY CONTROLLER
FOR 5ĆV INPUT SYSTEMS
SLVS201A − JUNE 1999 − REVISED JULY 1999
D Single-Channel, 5-V Controller
D Synchronous-Rectifier Drivers for Greater
Than 90% Efficiency
D Useable for All Common DSP Supply
Voltages – Popular Output Voltage Options
Set With Program Pins
D EVM Available
D Ideal for Applications With Current Ranges
From 3 A to 30 A.
D Hysteretic Control Technique Enables Fast
Transient Response — Ideal for ’C6000 or
Multiple ’C5000 Applications
D Low Supply Current
− 3 mA in Operation
− 90 µA in Standby
D Power Good Output
D 28-Pin TSSOP PowerPAD Package
PWP PACKAGE
(TOP VIEW)
IOUT
1
28
NC
2
27
OCP
3
26
VHYST
4
25
VREFB
5
24
VSENSE
6
23
ANAGND
7
22
SLOWST
8
21
BIAS
9
20
LODRV
10
19
LOHIB
11
18
DRVGND
12
17
LOWDR
13
16
DRV
14
15
NC − Not Connected
PWRGD
VP0
VP1
VP2
VP3
VP4
INHIBIT
IOUTLO
LOSENSE
HISENSE
BOOTLO
HIGHDR
BOOT
V_CC
description
The TPS56100 is a high-efficiency synchronous-buck regulator controller which provides an accurate
programmable supply voltage to low-voltage digital signal processors, such as the ‘C6x and ‘C54x DSPs. An
internal 5-bit DAC is used to program the reference voltage from 1.3 V to 2.6 V. Higher output voltages can be
implemented using an external input resistive divider. The TPS56100 uses a fast hysteretic control method that
provides a quick transient response. The propagation delay from the comparator input to the output driver is
application example
5V
GND
28 27 26 25 24 23 22 21 20 19 18 17 16 15
TPS56100
1 2 3 4 5 6 7 8 9 10 11 12 13 14
1.5 V _CVDD
+
DSP
GND
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  1999, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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