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ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - LDO voltage regulator Positive, fixed SOT 23 5

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FEATURES DESCRIPTION

APPLICATIONS

DBV PACKAGE

(TOP VIEW)

GND

OUT

NC/FB

TPS72115

0.1 µF 0.1 µF

1.8 V 1.5 V

GND

OUTIN

TPS72101 , , TPS72115

TPS72116 , TPS72118

SLVS352C – DECEMBER 2001 – REVISED MARCH 2006

LOW INPUT VOLTAGE, CAP FREE 150-mA

LOW-DROPOUT LINEAR REGULATORS

• 150-mA LDO

The TPS721xx family of LDO regulators is available

in fixed voltage options that are commonly used to

• Available in 1.5-V, 1.6-V, 1.8-V Fixed-Output

power the latest DSPs and microcontrollers with an

and Adjustable (1.2-V to 2.5-V) Versions

adjustable option ranging from 1.22 V to 2.5 V. These

• Low Input Voltage Requirement (Down to

regulators can be used in a wide variety of

1.8 V)

applications ranging from portable, battery-powered

• Small Output Capacitor, 0.1-µF

equipment to PC peripherals. The family features

operation over a wide range of input voltages (1.8 V

• Dropout Voltage Typically 200 mV at 150 mA

to 5.5 V) and low dropout voltage (150 mV at full

• Less Than 1 µA Quiescent Current in

load). Therefore, compared to many other regulators

Shutdown Mode

that require 2.5-V or higher input voltages for

• Thermal Protection

operation, these regulators can be operated directly

from two AAA batteries. Also, the typical quiescent

• Over Current Limitation

current (ground pin current) is low, starting at 85 µA

• 5-Pin SOT-23 (DBV) Package

during normal operation and 1 µA in shutdown mode.

These regulators can be operated very efficiently and,

in a battery-powered application, help extend the

• Portable Communication Devices

longevity of the device.

• Battery Powered Equipment

Similar LDO regulators require 1-µF or larger output

• PCMCIA Cards

capacitors for stability. However, this regulator uses

an internal compensation scheme that stabilizes the

• Personal Digital Assistants

feedback loop over the full range of input voltages

• Modems

and load currents with output capacitances as low as

• Bar Code Scanners

0.1-µF. Ceramic capacitors of this size are relatively

• Backup Power Supplies

inexpensive and available in small footprints.

• SMPS Post Regulation

This family of regulators is particularly suited as a

• Internet Audio

portable power supply solution due to its minimal

board space requirement and 1.8-V minimum input

voltage. Being able to use two off-the-shelf AAA

batteries makes system design easier and also

reduces component cost. Moreover, the solution will

be more efficient than if a regulator with a higher

input voltage is used.

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.

Summary of content (16 pages)

PAGE 1
TPS72101,, TPS72115 TPS72116, TPS72118 www.ti.com SLVS352C – DECEMBER 2001 – REVISED MARCH 2006 LOW INPUT VOLTAGE, CAP FREE 150-mA LOW-DROPOUT LINEAR REGULATORS FEATURES • • • • • • • • • DESCRIPTION 150-mA LDO Available in 1.5-V, 1.6-V, 1.8-V Fixed-Output and Adjustable (1.2-V to 2.5-V) Versions Low Input Voltage Requirement (Down to 1.8 V) Small Output Capacitor, 0.
PAGE 2
TPS72101,, TPS72115 TPS72116, TPS72118 www.ti.com SLVS352C – DECEMBER 2001 – REVISED MARCH 2006 These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. ORDERING INFORMATION TJ VOLTAGE PACKAGE SYMBOL TPS72101DBVT (1) TPS72101DBVR (2) PEKI 1.
PAGE 3
TPS72101,, TPS72115 TPS72116, TPS72118 www.ti.com SLVS352C – DECEMBER 2001 – REVISED MARCH 2006 ELECTRICAL CHARACTERISTICS over recommended operating junction temperature range VIN = VOUT(Nom) + 1 V, IOUT = 1 mA, EN = VIN, COUT = 1 µF (unless otherwise noted) PARAMETER TEST CONDITIONS VIN Input voltage (1) VOUT Output voltage range IOUT Continuous output current TJ Operating junction temperature TPS72101 TPS72101 0 µA < IOUT < 150 mA (1) TPS72115 VOUT Output voltage MIN TPS72116 TPS72118 1.
PAGE 4
TPS72101,, TPS72115 TPS72116, TPS72118 www.ti.com SLVS352C – DECEMBER 2001 – REVISED MARCH 2006 TPS72101 OUT IN EN Current Limit / Thermal Protection VREF 1.225V FB GND Figure 1. FUNCTIONAL BLOCK DIAGRAM—ADJUSTABLE VERSION TPS72115/16/18 OUT IN EN Current Limit / Thermal Protection VREF 1.225V GND NC(A) A. This pin must be left floating and not connected to GND. Figure 2. FUNCTIONAL BLOCK DIAGRAM—FIXED VERSION Terminal Functions TERMINAL NAME DESCRIPTION NO.
PAGE 5
TPS72101,, TPS72115 TPS72116, TPS72118 www.ti.com SLVS352C – DECEMBER 2001 – REVISED MARCH 2006 TYPICAL CHARACTERISTICS TPS72118 OUTPUT VOLTAGE vs OUTPUT CURRENT TPS72118 OUTPUT VOLTAGE vs JUNCTION TEMPERATURE 1.8040 VI = 2.8 V Co = 1 µF TJ = 25° C 1.8020 V O − Output Voltage − V 1.8000 1.7999 1.7998 1.7997 1.7996 30 60 90 120 IO − Output Current − mA IO = 150 mA 1.7960 500 400 300 1.7940 200 1.
PAGE 6
TPS72101,, TPS72115 TPS72116, TPS72118 www.ti.com SLVS352C – DECEMBER 2001 – REVISED MARCH 2006 TYPICAL CHARACTERISTICS (continued) TPS72118 DROPOUT VOLTAGE vs JUNCTION TEMPERATURE TPS72118 POWER SUPPLY RIPPLE REJECTION vs FREQUENCY IO = 150 mA 150 100 50 IO = 10 mA 0 −40 −25 −10 5 VI = 2.8 V Co = 1 µF IO = 150 mA 60 50 40 20 10 0 20 35 50 65 80 95 110 125 1 10 100 1k 10 k 100 k 1 M 0 0 50 100 150 200 200 300 350 400 450 500 t − Time − µs POWER UP / POWER DOWN 6 VI = 2.
PAGE 7
TPS72101,, TPS72115 TPS72116, TPS72118 www.ti.com SLVS352C – DECEMBER 2001 – REVISED MARCH 2006 APPLICATION INFORMATION The TPS721xx family of low-dropout (LDO) regulators functions with a very low input voltage (>1.8 V). The dropout voltage is typically 150 mV at full load. Typical quiescent current (ground pin current) is only 85 µA and drops to 1 µA in the shutdown mode.
PAGE 8
TPS72101,, TPS72115 TPS72116, TPS72118 www.ti.com SLVS352C – DECEMBER 2001 – REVISED MARCH 2006 APPLICATION INFORMATION (continued) 1.8 V – 3 V 3.3 V VIO Boost Converter DSP or Controller 1.8 V 1.5 V TPS72115 VCORE Two AAA Batteries Figure 19. Dual Supply Application Circuit EXTERNAL CAPACITOR REQUIREMENTS A 0.1-µF ceramic bypass capacitor is required on both the input and output for stability. Larger capacitors improve transient response, noise rejection, and ripple rejection.
PAGE 9
TPS72101,, TPS72115 TPS72116, TPS72118 www.ti.com SLVS352C – DECEMBER 2001 – REVISED MARCH 2006 APPLICATION INFORMATION (continued) Resistors R1 and R2 should be chosen for approximately 10-µA divider current. Lower value resistors can be used but offer no inherent advantage and waste more power. Higher values should be avoided, as leakage currents at FB increase the output voltage error. The recommended design procedure is to choose R2 = 30.
PAGE 10
PACKAGE OPTION ADDENDUM www.ti.
PAGE 11
PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device.
PAGE 12
PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) TPS72101DBVR SOT-23 DBV 5 3000 179.0 8.4 3.2 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 3.2 1.4 4.0 8.0 Q3 TPS72101DBVT SOT-23 DBV 5 250 179.0 8.4 3.2 3.2 1.4 4.0 8.0 Q3 TPS72115DBVR SOT-23 DBV 5 3000 178.0 9.0 3.23 3.17 1.37 4.0 8.
PAGE 13
PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS72101DBVR SOT-23 DBV 5 3000 203.0 203.0 35.0 TPS72101DBVT SOT-23 DBV 5 250 203.0 203.0 35.0 TPS72115DBVR SOT-23 DBV 5 3000 180.0 180.0 18.0 TPS72115DBVT SOT-23 DBV 5 250 180.0 180.0 18.0 TPS72116DBVR SOT-23 DBV 5 3000 203.0 203.0 35.0 TPS72116DBVT SOT-23 DBV 5 250 203.0 203.0 35.
PAGE 14
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.