Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - LDO voltage regulator Positivbe, adjustable SO 8 PowerPad

OUT

Input Voltage

Output Voltage

TPS7A7001

OUT

GND

Enable

V = 0.5

OUT

1 +´

TPS7A7001

www.ti.com

SBVS134D –JANUARY 2012–REVISED SEPTEMBER 2013

Very Low Input, Very Low Dropout, 2-Amp Regulator With Enable

Check for Samples: TPS7A7001

FEATURES

DESCRIPTION

The TPS7A7001 is a high-performance, positive-

• Input Voltage as low as 1.425 V

voltage, low-dropout (LDO) regulator designed for

• 380 mV Dropout Maximum at 2 A

use in applications requiring very low input voltage

• Adjustable Output from 0.5 V

and very low dropout voltage at up to 2 A. The device

operates with a single input voltage as low as 1.425

• Protections: Current Limit and Thermal

V, and with an output voltage programmable to as

Shutdown

low as 0.5 V. The output voltage can be set using an

• Enable Pin

external divider.

• 1-µA Quiescent Current in Shutdown Mode

The TPS7A7001 features ultralow dropout, ideal for

• Full Industrial Temperature Range

applications where V

OUT

is very close to V

• Available in SOIC-8, Fully RoHS-Compliant

Additionally, the TPS7A7001 has an enable pin for

further reduced power dissipation while in Shutdown

Package

mode. The TPS7A7001 provides excellent regulation

over variations in line, load, and temperature.

APPLICATIONS

The TPS7A7001 is available in an SOIC-8

• Telecom/Networking Cards

PowerPAD™ package.

• Motherboards/Peripheral Cards

• Industrial

• Wireless Infrastructure

• Set-Top Boxes

• Medical Equipment

• Notebook Computers

• Battery-Powered Systems

Typical Application

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.

2PowerPAD is a trademark of Texas Instruments.

3All other trademarks are the property of their respective owners.

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)

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TPS7A7001 www.ti.com SBVS134D – JANUARY 2012 – REVISED SEPTEMBER 2013 Very Low Input, Very Low Dropout, 2-Amp Regulator With Enable Check for Samples: TPS7A7001 FEATURES DESCRIPTION • • • • The TPS7A7001 is a high-performance, positivevoltage, low-dropout (LDO) regulator designed for use in applications requiring very low input voltage and very low dropout voltage at up to 2 A. The device operates with a single input voltage as low as 1.425 V, and with an output voltage programmable to as low as 0.
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TPS7A7001 SBVS134D – JANUARY 2012 – REVISED SEPTEMBER 2013 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.
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TPS7A7001 www.ti.com SBVS134D – JANUARY 2012 – REVISED SEPTEMBER 2013 THERMAL INFORMATION TPS7A7001 (3) THERMAL METRIC (1) (2) DDA (SOIC) UNITS 8 PINS Junction-to-ambient thermal resistance (4) θJA (5) 46.4 θJCtop Junction-to-case (top) thermal resistance θJB Junction-to-board thermal resistance (6) 29.9 ψJT Junction-to-top characterization parameter (7) 10.2 ψJB Junction-to-board characterization parameter (8) 29.8 θJCbot Junction-to-case (bottom) thermal resistance (9) 6.
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TPS7A7001 SBVS134D – JANUARY 2012 – REVISED SEPTEMBER 2013 www.ti.com ELECTRICAL CHARACTERISTICS Over the full operating temperature range (see Recommended Operating Conditions), VEN = 1.1 V, VFB = VOUT (1), 1.425 V ≤ VIN ≤ 6.5 V, 10 µA ≤ IOUT ≤ 2 A, COUT = 10 μF, unless otherwise noted. Typical values are at TJ = +25°C TPS7A7001 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INPUT VOLTAGE IGND GND pin current (small) VIN = 3.
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TPS7A7001 www.ti.com SBVS134D – JANUARY 2012 – REVISED SEPTEMBER 2013 FUNCTIONAL BLOCK DIAGRAM OUT Current Limit IN VOUT VOUT = 0.5 x (1 + UVLO Thermal Protection Charge Pump R1 ) R2 R1 0.5V Reference FB R2 Hysteresis EN GND Figure 1. Adjustable Output Voltage Version PIN CONFIGURATIONS DDA PACKAGE SOIC-8 (TOP VIEW) NC 1 EN 2 8 GND 7 FB PowerPAD IN 3 6 OUT NC 4 5 NC Pin Descriptions NAME PIN # EN 2 Enable input. Pulling this pin below 0.5 V turns the regulator off.
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TPS7A7001 SBVS134D – JANUARY 2012 – REVISED SEPTEMBER 2013 www.ti.com TYPICAL CHARACTERISTICS For all fixed voltage versions and an adjustable version at TJ = +25°C, VEN = VIN, CIN = 10 μF, COUT = 10 μF, and using the component values in Table 1, unless otherwise noted.
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TPS7A7001 www.ti.com SBVS134D – JANUARY 2012 – REVISED SEPTEMBER 2013 APPLICATION INFORMATION OVERVIEW The TPS7A7001 offers a high current supply with very low dropout voltage. The TPS7A7001 is designed to minimize the required component count for a simple, small-size, and low-cost solution. INPUT CAPACITOR (IN) Although an input capacitor is not required for stability, it is recommended to connect a 1-µF to 10µF low equivalent series resistance (ESR) capacitor across IN and GND near the device.
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TPS7A7001 SBVS134D – JANUARY 2012 – REVISED SEPTEMBER 2013 www.ti.com THERMAL INFORMATION Thermal Protection Thermal protection disables the output when the junction temperature rises to approximately +160°C, allowing the device to cool. When the junction temperature cools to approximately +140°C, the output circuitry is enabled again. The internal protection circuitry of the TPS7A7001 is designed to protect against overload conditions. It is not intended to replace proper heatsinking.
PAGE 9
TPS7A7001 www.ti.com SBVS134D – JANUARY 2012 – REVISED SEPTEMBER 2013 REVISION HISTORY NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision C (January 2013) to Revision D • Page Added new text to Internal Current Limit section ..................................................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 27-Aug-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device TPS7A7001DDAR Package Package Pins Type Drawing SO Power PAD DDA 8 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2500 330.0 12.8 Pack Materials-Page 1 6.4 B0 (mm) K0 (mm) P1 (mm) 5.2 2.1 8.0 W Pin1 (mm) Quadrant 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 27-Aug-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS7A7001DDAR SO PowerPAD DDA 8 2500 366.0 364.0 50.
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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.