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TPS76425DBVR Datasheet Preview

TPS76425DBVR Datasheet

LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATOR

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TPS76425, TPS76427, TPS76428, TPS76430, TPS76433
LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATORS
D 150-mA Low Noise, Low-Dropout Regulator
D Output Voltage: 2.5 V, 2.7 V, 2.8 V, 3.0 V, 3.3 V
D Output Noise Typically 50 µV
D Quiescent Current Typically 85 µA
D Dropout Voltage, Typically 300 mV
at 150 mA
D Thermal Protection
D Over Current Limitation
D Less Than 2-µA Quiescent Current in
Shutdown Mode
D –40°C to 125°C Operating Junction
Temperature Range
D 5-Pin SOT-23 (DBV) Package
SLVS180B – MARCH 1999 – REVISED MAY 2001
DBV PACKAGE
(TOP VIEW)
IN
1
5
OUT
GND
2
EN
3
4
BYPASS
description
The TPS764xx family of low-dropout (LDO) voltage regulators offers the benefits of a low noise, low-dropout
voltage, low-power operation, and miniaturized package. Additionally, they feature low quiescent current when
compared to conventional LDO regulators. Offered in 5-terminal small outline integrated-circuit SOT-23
package, the TPS764xx series devices are ideal for low-noise applications, cost-sensitive designs and
applications where board space is at a premium.
A combination of new circuit design and process innovation has enabled the usual pnp pass transistor to be
replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the
dropout voltage is very low—typically 300 mV at 150 mA of load current (TPS76433)—and is directly
proportional to the load current. Since the PMOS pass element is a voltage-driven device, the quiescent current
is very low (140 µA maximum) and is stable over the entire range of output load current (0 mA to 150 mA).
Intended for use in portable systems such as laptops and cellular phones, the low-dropout voltage feature and
low-power operation result in a significant increase in system battery operating life.
The TPS764xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current
to 1 µA maximum at TJ = 25°C.The TPS764xx is offered in 2.5-V, 2.7-V, 2.8-V, 3.0-V, and 3.3-V fixed-voltages.
AVAILABLE OPTIONS
TJ
VOLTAGE PACKAGE
PART NUMBER
2.5 V
TPS76425DBVT† TPS76425DBVR‡
–40°C to 125°C
2.7 V
2.8 V
3.0 V
SOT-23
(DBV)
TPS76427DBVT†
TPS76428DBVT†
TPS76430DBVT†
TPS76427DBVR‡
TPS76428DBVR‡
TPS76430DBVR‡
3.3 V
TPS76433DBVT† TPS76433DBVR‡
The DBVT passive indicates tape and reel of 250 parts.
The DBVR passive indicates tape and reel of 3000 parts.
SYMBOL
PBJI
PBKI
PCEI
PBLI
PBMI
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.
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.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright 2001, Texas Instruments Incorporated
1




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TPS76425DBVR Datasheet Preview

TPS76425DBVR Datasheet

LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATOR

No Preview Available !

TPS76425, TPS76427, TPS76428, TPS76430, TPS76433
LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVS180B MARCH 1999 REVISED MAY 2001
functional block diagram
TPS76425/ 27/ 28/ 30/ 33
IN
EN
BYPASS
VREF
GND
Current Limit
/ Thermal
Protection
OUT
TERMINAL
NAME
GND
EN
BYPASS
IN
OUT
Terminal Functions
I/O
Ground
I Enable input
Output bypass capacitor
I Input supply voltage
O Regulated output voltage
DESCRIPTION
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)Ĕ
Input voltage range (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 10 V
Voltage range at EN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to VI + 0.3 V
Voltage on OUT, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Peak output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally limited
ESD rating, HBM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 kV
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See dissipation rating tables
Operating virtual junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40°C to 150°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
Stresses beyond those listed under absolute maximum ratingsmay cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditionsis not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to network ground terminal.
DISSIPATION RATING TABLE
BOARD PACKAGE
RθJC
RθJA
DERATING FACTOR
TA 25°C
TA = 70°C
TA = 85°C
ABOVE TA = 25°C POWER RATING POWER RATING POWER RATING
Low K
DBV
65.8 °C/W 259 °C/W
3.9 mW/°C
386 mW
212 mW
154 mW
High K§
DBV
65.8 °C/W 180 °C/W
5.6 mW/°C
555 mW
305 mW
222 mW
The JEDEC Low K (1s) board design used to derive this data was a 3 inch x 3 inch, two layer board with 2 ounce copper traces on top of the board.
§ The JEDEC High K (2s2p) board design used to derive this data was a 3 inch x 3 inch, multilayer board with 1 ounce internal power and ground
planes and 2 ounce copper traces on top and bottom of the board.
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265


Part Number TPS76425DBVR
Description LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATOR
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