VOLTAGE REGULATORS. TPS767D318-Q1 Datasheet

TPS767D318-Q1 REGULATORS. Datasheet pdf. Equivalent

Part TPS767D318-Q1
Description DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
Feature TPS767D301-Q1, TPS767D318-Q1, TPS767D325-Q1 DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS D Qualified .
Manufacture etcTI
Datasheet
Download TPS767D318-Q1 Datasheet



TPS767D318-Q1
TPS767D301-Q1, TPS767D318-Q1, TPS767D325-Q1
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
D Qualified for Automotive Applications
D Dual Output Voltages for Split-Supply
Applications
D Output Current Range of 0 mA to 1.0 A Per
Regulator
D 3.3-V/2.5-V, 3.3-V/1.8-V, and 3.3-V/Adjustable
Output
D Fast-Transient Response
D 2% Tolerance Over Load and Temperature
D Dropout Voltage Typically 350 mV at 1 A
D Ultra Low 85 μA Typical Quiescent Current
D 1 μA Quiescent Current During Shutdown
D Dual Open Drain Power-On Reset With
200-ms Delay for Each Regulator
D 28-Pin PowerPADTSSOP Package
D Thermal Shutdown Protection for Each
Regulator
NC
NC
1GND
1EN
1IN
1IN
NC
NC
2GND
2EN
2IN
2IN
NC
NC
SGLS231A − FEBRUARY 2004 − JUNE 2008
PWP PACKAGE
(TOP VIEW)
1 28 1RESET
2 27 NC
3 26 NC
4 25 1FB/NC
5 24 1OUT
6 23 1OUT
7 22 2RESET
8 21 NC
9 20 NC
10 19 NC
11 18 2OUT
12 17 2OUT
13 16 NC
14 15 NC
NC − No internal connection
description
The TPS767D3xx family of dual voltage regulators offers fast transient response, low dropout voltages and dual
outputs in a compact package and incorporating stability with 10-μF low ESR output capacitors.
The TPS767D3xx family of dual voltage regulators is designed primarily for DSP applications. These devices
can be used in any mixed-output voltage application, with each regulator supporting up to 1 A. Dual active-low
reset signals allow resetting of core-logic and I/O separately.
AVAILABLE OPTIONS{}
TJ
REGULATOR 1
VO (V)
REGULATOR 2
VO (V)
TSSOP
(PWP)
Adj (1.5 − 5.5 V)
3.3 V
TPS767D301QPWPRQ1
−40°C to 125°C
1.8 V
3.3 V
TPS767D318QPWPRQ1
2.5 V
3.3 V
TPS767D325QPWPRQ1
For the most current package and ordering information, see the Package Option Addendum
at the end of this document, or see the TI web site at http://www.ti.com.
Package drawings, thermal data, and symbolization are available at
http://www.ti.com/packaging.
The TPS767D301 is adjustable using an external resistor divider (see application information).
The PWP packages are taped and reeled as indicated by the R suffix on the device type (e.g.,
TPS767D301QPWPRQ1).
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.
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 © 2008 Texas Instruments Incorporated
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
1



TPS767D318-Q1
TPS767D301-Q1, TPS767D318-Q1, TPS767D325-Q1
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SGLS231A − FEBRUARY 2004 − JUNE 2008
LOAD TRANSIENT RESPONSE
100
VO = 3.3 V
50 CL =100 μF
TA = 25°C
0
DROPOUT VOLTAGE
vs
FREE-AIR TEMPERATURE
103
IO = 1 A
102
−50
−100
1
101
IO = 10 mA
100
0.5
0
0 20 40 60 80 100 120 140 160 180 200
t − Time − μs
10−1
VO = 3.3 V
CO = 10 μF
10−2
−60 −40 −20 0
IO = 0
20 40 60 80 100 120 140
TA − Free-Air Temperature − °C
description (continued)
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 350 mV
at an output current of 1 A for the TPS767D325) and is directly proportional to the output current. Additionally,
since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent
of output loading (typically 85 μA over the full range of output current, 0 mA to 1 A). These two key specifications
yield a significant improvement in operating life for battery-powered systems. This LDO family also features a
sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the quiescent current
to 1 μA at TJ = 25°C.
The RESET output of the TPS767D3xx initiates a reset in microcomputer and microprocessor systems in the
event of an undervoltage condition. An internal comparator in the TPS767D3xx monitors the output voltage of
the regulator to detect an undervoltage condition on the regulated output voltage.
The TPS767D3xx is offered in 1.8-V, 2.5-V, and 3.3-V fixed-voltage versions and in an adjustable version
(programmable over the range of 1.5 V to 5.5 V). Output voltage tolerance is specified as a maximum of 2%
over line, load, and temperature ranges. The TPS767D3xx family is available in 28 pin PWP TSSOP package.
They operate over a junction temperature range of −40°C to 125°C.
2 POST OFFICE BOX 655303 DALLAS, TEXAS 75265





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