TPS56300_16 Datasheet, PDF (1/40 Pages) Texas Instruments – DUAL-OUTPUT LOW-INPUT-VOLTAGE DSP POWER SUPPLY CONTROLLER WITH SEQUENCING

TPS56300
DUALĆOUTPUT LOWĆINPUTĆVOLTAGE
DSP POWER SUPPLY CONTROLLER WITH SEQUENCING
SLVS261B − DECEMBER 1999 − SEPTEMBER 2000
D 2.8 V – 5.5 V Input Voltage Range
D Programmable Dual Output Controller
Supports Popular DSP and Microcontroller
Core and I/O Voltages
− Switching Regulator Controls Core
Voltage
− Low Dropout Controller Regulates I/O
Voltage
D Programmable Slow-Start Ensures
Simultaneous Powerup of Both Outputs
D Power Good Output Monitors Both Outputs
D Fast Ripple Regulator Reduces Bulk
Capacitance for Lower System Costs
D ±1.5% Reference Voltage Tolerance
D Efficiencies Greater than 90%
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
VID0
VID1
SLOWST
VHYST
VREFB
VSEN−RR
ANAGND
BIAS
VLDODRV
CPC1
V_CC
CPC2
VDRV
DRVGND
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
LOWDR
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
PowerPAD is ^{TaetxraadseInmsatrrukmoef nTetsxasesmInicsotrnudmuecntotsr pInrcoodrupcotsraatendd. disclaimers thereto appears at the end of this data sheet.}
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
www.ti.com
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