Document
TPS76901-EP
www.ti.com
SLVSA53A – NOVEMBER 2009 – REVISED DECEMBER 2009
ULTRALOW-POWER 100-mA LOW DROPOUT LINEAR REGULATORS
Check for Samples: TPS76901-EP
FEATURES
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• 100-mA Low-Dropout Regulator • Available in Adjustable Versions • Only 335-μA Quiescent Current With 100 mA
at 150°C • 1-μA Quiescent Current in Standby Mode • Dropout Voltage Typically 71 mV at 100 mA • Over Current Limitation
APPLICATIONS
• Down-Hole Drilling • High Temperature Environments
SUPPORTS EXTREME TEMPERATURE APPLICATIONS
• Controlled Baseline
• One Assembly/Test Site
• One Fabrication Site
• Available in Extreme (–55°C/150°C) Temperature Range(1)
• Extended Product Life Cycle
• Extended Product-Change Notification
• Product Traceability
• Texas Instruments' high temperature products utilize highly optimized silicon (die) solutions with design and process enhancements to maximize performance over extended temperatures.
DBV PACKAGE (TOP VIEW)
IN
1
5
OUT
GND
2
EN
3
4
NC/FB
(1) Custom temperature ranges available
DESCRIPTION
The TPS76901 low-dropout (LDO) voltage regulator offers the benefits of low dropout voltage, ultralow-power operation, and miniaturized packaging. This regulator features low dropout voltages and ultralow quiescent current compared to conventional LDO regulators. The TPS76901 is ideal for micropower operations and 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, and is directly proportional to the load current. Since the PMOS pass element is a voltage-driven device, the quiescent current is ultralow (28 μA maximum) and is stable over the entire range of output load current (0 mA to 100 mA). Intended for use in portable systems such as laptops and cellular phones, the ultralow-dropout voltage feature and ultralow-power operation result in a significant increase in system battery operating life.
The TPS76901 also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current to 1 μA, typical at TJ = 25°C. The TPS76901 is a variable version programmable over the range of 1.2 V to 4.5 V.
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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 the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Copyright © 2009, Texas Instruments Incorporated
TPS76901-EP
SLVSA53A – NOVEMBER 2009 – REVISED DECEMBER 2009
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
TA –55°C to 150°C
ORDERING INFORMATION(1)
PACKAGE (2)
ORDERABLE PART NUMBER
DBV
TPS76901SDBVTEP
TOP-SIDE MARKING PCFS
(1) 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 www.ti.com.
(2) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package.
FUNCTIONAL BLOCK DIAGRAM
IN
OUT
EN
VREF GND
Current Limit FB
ABSOLUTE MAXIMUM RATINGS(1)
over operating free-air temperature range (unless otherwise noted)
VREF
Input voltage range(2) Voltage range at EN Voltage on OUT, FB
VALUE –0.3 to 13.5 –0.3 to VI + 0.3
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UNIT V V V
Peak output current
Internally limited
ESD rating, HBM
2
kV
Continuous total power dissipation
See Dissipation Ratings Table
TJ
Operating virtual junction temperature range
–55 to 150
°C
(1) Stresses beyond those listed under absolute maximum ratings may 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 conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to network ground terminal.
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Product Folder Link(s): TPS76901-EP
Copyright © 2009, Texas Instruments Incorporated
TPS76901-EP
www.ti.com
SLVSA53A – NOVEMBER 2009 – REVISED DECEMBER 2009
THERMAL CHARACTERISTIC.