Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - DC/DC voltage regulator Holder VSON 10

COMPGND

VIN

VREF

OUT

PS_GND

PowerPAD

VIN

VOUT

L1 C5

TPS63700

0.22 mF

22 mF

4.7 mH

0.1 mF

10 mF

2.7 V To 5.5 V

4.7 nF

−5 V

 

    

TPS63700

www.ti.com

SLVS530C –SEPTEMBER 2005–REVISED JUNE 2013

DC-DC INVERTER

Check for Samples: TPS63700

FEATURES

DESCRIPTION

• Adjustable Output Voltage Down to –15 V

The TPS63700 is an inverting dc-dc converter

• 2.7-V to 5.5-V Input Voltage Range

generating a negative output voltage down to –15 V

• Up to 360-mA Output Current

with output currents up to 360-mA, depending on

input-voltage to output-voltage ratio. With a total

• 1000-mA Typical Switch Current Limit

efficiency up to 84%, the device is ideal for portable

• Up to 84% Efficiency

battery-powered equipment. The input voltage range

• Typical 1.4-MHz Fixed-Frequency PWM

of 2.7-V to 5.5-V allows the TPS63700 to be directly

Operation

powered from a Li-ion battery, from 3-cell NiMH/NiCd,

from a 3.3-V or 5-V supply rail. The TPS63700 comes

• Thermal Shutdown

in a small 3-mm × 3-mm SON-10 package.

• Typical –19 V Output Overvoltage Protection

Furthermore, the high switching frequency of typically

• 1.5-μA Shutdown Current

1.4 MHz allows the use of small external

components. This, and the small package make a

• Small 3-mm × 3-mm SON-10 Package (DRC)

small power supply solution possible.

APPLICATIONS

The inverter operates with a fixed-frequency PWM

control topology. The device has an internal current

• Generic Negative Voltage Supply

limit, overvoltage protection, and a thermal shutdown

• Small-to-Medium Size OLED Displays

for highest reliability under fault conditions.

• PDAs, Pocket PCs, Smartphones

• Bias Supply

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.

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 (27 pages)

PAGE 1
www.ti.com TPS63700 SLVS530C – SEPTEMBER 2005 – REVISED JUNE 2013 DC-DC INVERTER Check for Samples: TPS63700 FEATURES 1 • • • • • • 2 • • • • Adjustable Output Voltage Down to –15 V 2.7-V to 5.5-V Input Voltage Range Up to 360-mA Output Current 1000-mA Typical Switch Current Limit Up to 84% Efficiency Typical 1.4-MHz Fixed-Frequency PWM Operation Thermal Shutdown Typical –19 V Output Overvoltage Protection 1.
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TPS63700 SLVS530C – SEPTEMBER 2005 – REVISED JUNE 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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TPS63700 www.ti.com SLVS530C – SEPTEMBER 2005 – REVISED JUNE 2013 ELECTRICAL CHARACTERISTICS –40°C to 85°C, over recommended input voltage range, typical at an ambient temperature of 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT DC-DC STAGE VOUT Adjustable output voltage range VIN Input voltage range VREF –15 –2 V PIN VIN, IN 2.7 5.5 V Reference voltage IREF = 10 μA 1.2 1.225 V IFB Negative feedback input bias current VFBN = 0.
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TPS63700 SLVS530C – SEPTEMBER 2005 – REVISED JUNE 2013 www.ti.com PIN ASSIGNMENTS DRC PACKAGE PowerPAD™ (TOP VIEW) COMP 1 10 GND 2 9 FB VIN 3 8 OUT EN 4 7 PS_GND IN 5 6 SW PowerPAD VREF Terminal Functions TERMINAL I/O DESCRIPTION NAME NO.
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TPS63700 www.ti.com SLVS530C – SEPTEMBER 2005 – REVISED JUNE 2013 Figure 1.
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TPS63700 SLVS530C – SEPTEMBER 2005 – REVISED JUNE 2013 www.ti.com TYPICAL CHARACTERISTICS PARAMETER MEASUREMENT INFORMATION TPS63700 C2 VIN R2 VREF C3 0.22 mF 10 W C1 0.1 mF PS_GND R3 OUT D1 IN VIN C4 10 mF 10 pF FB EN SW R4 100 kW VOUT, −5 V SL02/SL03 GND PowerPAD COMP C5 4x4.7 mF L1 C6 4.7 nF Table 1. List of Components REFERENCE C1, C2, C3, C4, C5 4 × 4.
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TPS63700 www.ti.com SLVS530C – SEPTEMBER 2005 – REVISED JUNE 2013 Table 2.
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TPS63700 SLVS530C – SEPTEMBER 2005 – REVISED JUNE 2013 www.ti.com PERFORMANCE GRAPHS (continued) EFFICIENCY vs OUTPUT CURRENT, VOUT –12 V EFFICIENCY vs OUTPUT CURRENT, VOUT –15 V 90 90 VIN = 5 V 80 80 VIN = 4.2 V 70 VIN = 3.6 V VIN = 3.3 V 70 Efficiency % 60 Efficiency % VIN = 5 V 50 40 VIN = 3.3 V VIN = 4.2 V 60 50 40 30 30 20 20 10 10 VOUT = −15 V VOUT = −12 V 0 0 0 100 50 150 200 250 0 20 40 IO − Output Current − mA Figure 4. Figure 5.
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TPS63700 www.ti.com SLVS530C – SEPTEMBER 2005 – REVISED JUNE 2013 PERFORMANCE GRAPHS (continued) OUTPUT VOLTAGE vs OUTPUT CURRENT OUTPUT VOLTAGE vs OUTPUT CURRENT −5.1 −12.4 VOUT = −5 V VOUT = −12 V VOUT− Output Voltage − V VOUT− Output Voltage − V −12.3 VIN = 5 V −5.05 −5 VIN = 3.6 V VIN = 3.3 V −4.95 −12.2 VIN = 5 V −12.1 VIN = 3.6 V −12 VIN = 3.3 V −11.9 −11.8 −4.9 0 −11.7 50 100 150 200 250 300 350 400 0 50 VOUT = –5 V 150 200 250 Figure 9.
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TPS63700 SLVS530C – SEPTEMBER 2005 – REVISED JUNE 2013 www.ti.com PERFORMANCE GRAPHS (continued) LOAD TRANSIENT RESPONSE, –5 V, 45 TO 150 mA LINE TRANSIENT RESPONSE, –5 V VIN = 3.6 V to 4.2 V, ILOAD = 100 mA, VOUT = –5 V 4.2 V VIN = 3.6V, I = 45mA to 150mA LOAD V OUT 100mV/div, AC VIN 500 mV/div, DC 3.6 V VOUT 100 mV/div, DC V OUT = –5V I LOAD 50mA/div, DC t-Time-2ms/div t - Time - 2 ms/div Figure 13. Figure 12. START-UP AFTER ENABLE, –5 V EN 2 V/div, DC VIN = 3.
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TPS63700 www.ti.com SLVS530C – SEPTEMBER 2005 – REVISED JUNE 2013 DETAILED DESCRIPTION The TPS63700 is a dc-dc converter for negative output voltages using buck-boost topology. It operates with an input voltage range of 2.7 V to 5.5 V and generates a negative output voltage down to –15 V. The output is controlled by a fixed-frequency, pulse-width-modulated (PWM) regulator. In normal operation mode, the converter operates at continuous conduction mode (CCM).
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TPS63700 SLVS530C – SEPTEMBER 2005 – REVISED JUNE 2013 www.ti.com Undervoltage Lockout An undervoltage lockout prevents the device from starting up and operating if the supply voltage at VIN is lower than the programmed threshold shown in the electrical characteristics table. The device automatically shuts down the converter when the supply voltage at VIN falls below this threshold. Nevertheless, parts of the control circuits remain active, which is different than device shutdown using EN inputs.
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TPS63700 www.ti.com SLVS530C – SEPTEMBER 2005 – REVISED JUNE 2013 APPLICATION INFORMATION Design Procedure The TPS63700 dc-dc converter is intended for systems typically powered by a single-cell Li-ion or Li-polymer battery with a terminal voltage between 2.7 V up to 4.2 V. Due to the recommended input voltage going up to 5.5 V, the device is also suitable for 3-cell alkaline, NiCd, or NiMH batteries, as well as regulated supply voltages of 3.3 V or 5 V. TPS63700 R2 150 kW C2 VIN VREF EN FB 0.
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TPS63700 SLVS530C – SEPTEMBER 2005 – REVISED JUNE 2013 www.ti.com For example, if an output voltage of –5 V is needed and a resistor of 150 kΩ has been chosen for R2, a 619-kΩ resistor is needed to program the desired output voltage. Inductor Selection An inductive converter normally requires two main passive components for storing energy during the conversion. An inductor and a storage capacitor at the output are required.
PAGE 15
TPS63700 www.ti.com SLVS530C – SEPTEMBER 2005 – REVISED JUNE 2013 The following inductor series from different suppliers have been tested with the TPS63700 converter: Table 3. List of Inductors Output Voltage Vendor SUGGESTED INDUCTOR VLF4012 4.7 μH –5V TDK –5V Coilcraft –12V Sumida CDRH5D18 10 μH –12V Coilcraft MOS6020 10 μH SLF6025-4.7 μH LPS4018 4.7 μH LPS3015 4.
PAGE 16
TPS63700 SLVS530C – SEPTEMBER 2005 – REVISED JUNE 2013 www.ti.com Compensation Capacitor The control loop of the converter is completely compensated internally. However the internal feed-forward system requires an external capacitor. A 4.7-nF capacitor at the COMP pin of the converter is recommended. Layout Considerations For all switching power supplies the layout is an important step in the design, especially at high peak currents and high switching frequencies.
PAGE 17
TPS63700 www.ti.com SLVS530C – SEPTEMBER 2005 – REVISED JUNE 2013 VOUT sense Figure 18. Layout Considerations, Bottom View TPS63700 10 W C4 0.1 mF VIN 2.7V to 5.5V VIN VREF EN FB OUT PS_GND 10 mF CIN BP 22 nF D1 SL03 GND R2 121 kW C6 10 pF R2 1.2 MW SW IN C1 C5 0.22 mF PowerPAD COMP L1 10 mH COUT BP 10 nF R4 100 kW VOUT, -12 V C8,C9,C10,C11 4x4.7 mF C6 4.7 nF Figure 19.
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TPS63700 SLVS530C – SEPTEMBER 2005 – REVISED JUNE 2013 www.ti.com THERMAL INFORMATION Implementation of integrated circuits in low-profile and fine-pitch surface-mount packages typically requires special attention to power dissipation. Many system-dependent issues, such as thermal coupling, airflow, added heatsinks and convection surfaces, and the presence of heat-generating components affect the powerdissipation limits of a given component.
PAGE 19
TPS63700 www.ti.com SLVS530C – SEPTEMBER 2005 – REVISED JUNE 2013 Changes from Revision B (November 2007) to Revision C • Page Deleted Dissipation Ratings table and added Thermal Information table. ...........................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 18-Oct-2013 Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties.
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PACKAGE MATERIALS INFORMATION www.ti.com 21-Aug-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) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TPS63700DRCR SON DRC 10 3000 330.0 12.4 3.3 3.3 1.1 8.0 12.0 Q2 TPS63700DRCR SON DRC 10 3000 330.0 12.4 3.3 3.3 1.1 8.0 12.0 Q2 TPS63700DRCT SON DRC 10 250 180.0 12.4 3.3 3.3 1.1 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 21-Aug-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS63700DRCR SON DRC 10 3000 367.0 367.0 35.0 TPS63700DRCR SON DRC 10 3000 338.0 355.0 50.0 TPS63700DRCT SON DRC 10 250 210.0 185.0 35.0 TPS63700DRCT SON DRC 10 250 338.0 355.0 50.
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