Datasheet

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

LVIN

UVLO

GND PGND

VAUX

VOUT

TPS61200

VIN

0.3Vto5.5V

VOUT

1.8Vto5.5V

10 Fm

2.2 Hm

0.1 Fm

(3 mm x 3 mm)

TPS61200

TPS61201

TPS61202

www.ti.com

SLVS577D –MARCH 2007–REVISED MARCH 2013

LOW INPUT VOLTAGE SYNCHRONOUS BOOST CONVERTER

WITH 1.3-A SWITCHES

Check for Samples: TPS61200, TPS61201, TPS61202

FEATURES

• Power Save Mode for Improved Efficiency at

Low Output Power

• More than 90% Efficiency at

• Forced fixed Frequency Operation possible

– 300 mA Output Current at 3.3 V

• Load Disconnect During Shutdown

(VIN ≥ 2.4 V)

• Overtemperature Protection

– 600 mA Output Current at 5 V (VIN ≥ 3 V)

• Small 3 mm x 3 mm SON-10 Package

• Automatic Transition between Boost Mode and

Down Conversion Mode

APPLICATIONS

• Device Quiescent Current less than 55 μA

• All Single-Cell, Two-Cell and Three-Cell

• Startup into Full Load at 0.5 V Input Voltage

Alkaline, NiCd or NiMH or Single-Cell Li

• Operating Input Voltage Range from

Battery Powered Products

0.3 V to 5.5 V

• Fuel Cell And Solar Cell Powered Products

• Programmable Undervoltage Lockout

• Portable Audio Players

Threshold

• PDAs

• Output Short Circuit Protection Under all

Operating Conditions • Cellular Phones

• Fixed and Adjustable Output Voltage Options • Personal Medical Products

from 1.8 V to 5.5 V

• White LED Driver

DESCRIPTION

The TPS6120x devices provide a power supply solution for products powered by either a single-cell, two-cell, or

three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. It is also used in fuel cell or solar cell

powered devices where the capability of handling low input voltages is essential. Possible output currents

depend on the input to output voltage ratio. The devices provide output currents of up to 600 mA at a 5-V output,

while using a single-cell Li-Ion or Li-Polymer battery and discharges it down to 2.6 V. The boost converter is

based on a fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain

maximum efficiency. At low load currents, the converter enters the Power Save mode to maintain a high

efficiency over a wide load current range. The Power Save mode can be disabled, forcing the converter to

operate at a fixed switching frequency. The average input current is limited to a maximum value of 1500 mA. The

output voltage is programmed by an external resistor divider, or is fixed internally on the chip. The converter can

be disabled to minimize battery drain. During shutdown, the load is completely disconnected from the battery.

The device is packaged in a 10-pin SON package measuring 3 mm x 3 mm.

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 (31 pages)

PAGE 1
TPS61200 TPS61201 TPS61202 (3 mm x 3 mm) www.ti.com SLVS577D – MARCH 2007 – REVISED MARCH 2013 LOW INPUT VOLTAGE SYNCHRONOUS BOOST CONVERTER WITH 1.3-A SWITCHES Check for Samples: TPS61200, TPS61201, TPS61202 FEATURES • 1 • • • • • • • • More than 90% Efficiency at – 300 mA Output Current at 3.3 V (VIN ≥ 2.4 V) – 600 mA Output Current at 5 V (VIN ≥ 3 V) Automatic Transition between Boost Mode and Down Conversion Mode Device Quiescent Current less than 55 μA Startup into Full Load at 0.
PAGE 2
TPS61200 TPS61201 TPS61202 SLVS577D – MARCH 2007 – REVISED MARCH 2013 www.ti.com 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. AVAILABLE DEVICE OPTIONS (1) TA OUTPUT VOLTAGE PACKAGE MARKING Adjustable BRR 3.
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TPS61200 TPS61201 TPS61202 www.ti.com SLVS577D – MARCH 2007 – REVISED MARCH 2013 ELECTRICAL CHARACTERISTICS over recommended free-air temperature range and over recommended input voltage range (typical at an ambient temperature range of 25°C) (unless otherwise noted) DC/DC STAGE PARAMETER TEST CONDITIONS MIN TYP 0.3 MAX VIN Input voltage range VIN Minimum input voltage at startup VOUT TPS61200 output voltage range 1.
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TPS61200 TPS61201 TPS61202 SLVS577D – MARCH 2007 – REVISED MARCH 2013 www.ti.com PIN ASSIGNMENTS DSC and DRC PACKAGE (TOP VIEW) VAUX VOUT L PGND VIN 1 2 3 10 Exposed Thermal Pad 9 8 4 7 5 6 FB GND PS UVLO EN Terminal Functions TERMINAL NAME NO. I/O DESCRIPTION EN 6 I Enable input (High = enabled, Low = disabled). Do not leave floating.
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TPS61200 TPS61201 TPS61202 www.ti.com SLVS577D – MARCH 2007 – REVISED MARCH 2013 FUNCTIONAL BLOCK DIAGRAM (TPS61200) L VOUT VCC Control VAUX Current Sensor VOUT PGND VIN Gate Control VCC FB Modulator VFB PS Oscillator Device Control EN UVLO Thermal Shutdown GND PGND PGND PARAMETER MEASUREMENT INFORMATION L1 VIN VIN C1 L VOUT VOUT EN VAUX PS R1 C2 C3 UVLO FB GND PGND R2 TPS61200 Table 1.
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TPS61200 TPS61201 TPS61202 SLVS577D – MARCH 2007 – REVISED MARCH 2013 www.ti.
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TPS61200 TPS61201 TPS61202 www.ti.com SLVS577D – MARCH 2007 – REVISED MARCH 2013 TYPICAL CHARACTERISTICS MAXIMUM OUTPUT CURRENT vs INPUT VOLTAGE EFFICIENCY vs OUTPUT CURRENT 100 1600 TPS61201 VO = 3.3 V 80 1200 TPS61200 VO = 1.8 V 1000 800 TPS61202 VO = 5 V 600 60 50 40 VI = 0.9 V 30 400 20 200 10 0 0.10 0 0.2 0.6 1 1.4 1.8 2.2 2.6 3 3.4 3.8 4.2 4.6 5 5.4 VI - Input Voltage - V 90 1 10 100 IO - Output Current - mA Figure 1. Figure 2.
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TPS61200 TPS61201 TPS61202 SLVS577D – MARCH 2007 – REVISED MARCH 2013 www.ti.com TYPICAL CHARACTERISTICS (continued) EFFICIENCY vs OUTPUT CURRENT EFFICIENCY vs OUTPUT CURRENT 100 90 100 TPS61201 VO = 3.3 V, Power Save Disabled 90 80 VI = 2.4 V Efficiency - % Efficiency - % 70 VI = 1.8 V 60 50 VI = 0.9 V 40 20 10 10 TPS61202 VO = 5 V, Power Save Enabled 0 0.10 1000 1 10 100 IO - Output Current - mA Figure 5. Figure 6.
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TPS61200 TPS61201 TPS61202 www.ti.com SLVS577D – MARCH 2007 – REVISED MARCH 2013 TYPICAL CHARACTERISTICS (continued) EFFICIENCY vs INPUT VOLTAGE EFFICIENCY vs INPUT VOLTAGE 100 100 90 80 80 70 70 Efficiency - % Efficiency - % 90 IO = 500 mA IO = 1000 mA IO = 500 mA 60 50 IO = 10 mA IO = 100 mA 40 IO = 1000 mA 60 50 IO = 10 mA 40 30 30 20 TPS61201 VO = 3.3 V, Power Save Disabled 20 10 0 IO = 100 mA 0 0.5 1 1.5 2 2.5 3 3.5 4 VI - Input Voltage - V Figure 9. 4.
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TPS61200 TPS61201 TPS61202 SLVS577D – MARCH 2007 – REVISED MARCH 2013 www.ti.com TYPICAL CHARACTERISTICS (continued) OUTPUT VOLTAGE vs OUTPUT CURRENT 5.05 OUTPUT VOLTAGE, POWER SAVE MODE DISABLED Output Voltage 20 mV/div, AC TPS61202 VO = 5 V, Power Save Disabled VI = 1.8 V, RL = 11W 5 Inductor Current 100 mA/div, AC VO - Output Voltage - V VI = 2.4 V TPS61201 VO = 3.3 V, Power Save Disabled 4.95 1000 OUTPUT VOLTAGE, POWER SAVE MODE DISABLED TPS61202 VI = 1.
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TPS61200 TPS61201 TPS61202 www.ti.com SLVS577D – MARCH 2007 – REVISED MARCH 2013 TYPICAL CHARACTERISTICS (continued) LOAD TRANSIENT RESPONSE VI = 1.8 V, RL = 55 kW Output Voltage 50 mV/div, AC TPS61202 VO = 5 V, Power Save Enabled TPS61201 VO = 3.3 V t - Time - 100 ms/div Figure 17. t - Time - 1 ms/div Figure 18. LOAD TRANSIENT RESPONSE Input Voltage 500 mV/div, AC Output Voltage 50 mV/div, AC TPS61202 VO = 5 V LINE TRANSIENT RESPONSE VI = 1.8 V to 2.4 V, RL = 11W VI = 1.
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TPS61200 TPS61201 TPS61202 SLVS577D – MARCH 2007 – REVISED MARCH 2013 www.ti.com TYPICAL CHARACTERISTICS (continued) LINE TRANSIENT RESPONSE START-UP AFTER ENABLE VI = 3 V to 3.6 V, RL = 17W Input Voltage 500 mV/div, AC Enable 5 V/div, DC Voltage at VAUX 2 V/div, DC Output Voltage 20 mV/div, AC Output Voltage 2 V/div, DC Voltage at L 2 V/div, DC Inductor Current 500 mA/div, DC TPS61202 VO = 5 V TPS61201 VO = 3.3 V t - Time - 2 ms/div VI = 1.8 V, RL = 11W t - Time - 100 ms/div Figure 22.
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TPS61200 TPS61201 TPS61202 www.ti.com SLVS577D – MARCH 2007 – REVISED MARCH 2013 DETAILED DESCRIPTION CONTROLLER CIRCUIT The controlling circuit of the device is based on an average current mode topology. The average inductor current is regulated by a fast current regulator loop which is controlled by a voltage control loop. The controller also uses input and output voltage feedforward.
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TPS61200 TPS61201 TPS61202 SLVS577D – MARCH 2007 – REVISED MARCH 2013 www.ti.com Softstart and Short-Circuit Protection During start-up of the converter, the duty cycle and the peak current are limited in order to avoid high peak currents drawn from the battery. After being enabled, the device starts operating. At first, it keeps the main output VOUT disconnected, and charges the capacitor at VAUX. Once the capacitor at VAUX is charged to about 2.5 V, the device switches to normal operation.
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TPS61200 TPS61201 TPS61202 www.ti.com SLVS577D – MARCH 2007 – REVISED MARCH 2013 APPLICATION INFORMATION DESIGN PROCEDURE The TPS6120x DC/DC converters are intended for systems powered by a single up to triple cell Alkaline, NiCd, NiMH battery with a typical terminal voltage between 0.7 V and 5.5 V. They can also be used in systems powered by one-cell Li-Ion or Li-Polymer with a typical voltage between 2.5 V and 4.2 V.
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TPS61200 TPS61201 TPS61202 SLVS577D – MARCH 2007 – REVISED MARCH 2013 www.ti.com æV ö R3 = R4 x çç INMIN - 1÷÷ è VUVLO ø (2) Inductor Selection To make sure that the TPS6120X devices can operate, an inductor must be connected between the VIN and L pins. To estimate the minimum inductance value, Equation 3 can be used. ms LMIN = VIN x 0.5 A (3) In Equation 3, the minimum inductance, LMIN , for boost mode operation is calculated. VIN is the maximum input voltage.
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TPS61200 TPS61201 TPS61202 www.ti.com SLVS577D – MARCH 2007 – REVISED MARCH 2013 Capacitor at VAUX Between the VAUX pin and GND pin, a capacitor must be connected. This capacitor is used to maintain and filter the control supply voltage, which is chosen from the highest of VIN, VOUT, and L. It is charged during startup and before the main output VOUT is turned on. To ensure stable operation, using at least 0.1μF is recommended. At output voltages below 2.
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TPS61200 TPS61201 TPS61202 SLVS577D – MARCH 2007 – REVISED MARCH 2013 T P D(MAX) + www.ti.com *T J(MAX) A + 125°C * 85°C + 820 mW R 48.7 °CńW qJA (6) Figure 26. WLED Driver Circuit ( See SLVA364) L1 4.7µH Vcell = 0.3 - 0.5V RefDes C1 C2 C3 C4 C5 CFF VCELL EN C1 UVLO VAUX PS L TPS61200 Solar Cell VIN GND Value >10 mF >20 mF 1 mF 1 mF 10 nF 33 pF VOUT VOUT R1 CFF FB VAUX PGND C2 R2 VAUX Charge storage device C3 R5 VAUX C4 R3 R8 L1 RefDes R1 R2 R3 R4 R5 R6 R7 R8 4.
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TPS61200 TPS61201 TPS61202 www.ti.com SLVS577D – MARCH 2007 – REVISED MARCH 2013 L1 Inductor 2.2uH 3.3V Vout 0.9V to 1.5V R1 Vin 100 Battery C1 10uF TPS61200 Vaux Vout L PGND VIN R2 0 C2 100nF 1 2 3 4 5 FB 10 GND 9 PS 8 UVLO 7 EN 6 C3 47uF C4 10uF R4 1K TPS61200 R5 1K R3 1K Q1 MOSFET-N GND Figure 28.
PAGE 20
TPS61200 TPS61201 TPS61202 SLVS577D – MARCH 2007 – REVISED MARCH 2013 www.ti.com REVISION HISTORY Changes from Original (MARCH 2007) to Revision A Page • Changed Features bullet From: 600 mA Output Current at 3.3 V (VIN ≥ 1.2 V) To: 300 mA Output Current at 3.3 V (VIN ≥ 2.4 V) .........................................................................................................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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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.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Mar-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 TPS61200DRCR SON DRC 10 3000 330.0 12.4 3.3 3.3 1.1 8.0 12.0 Q2 TPS61200DRCR SON DRC 10 3000 330.0 12.4 3.3 3.3 1.1 8.0 12.0 Q2 TPS61200DRCT 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 14-Mar-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS61200DRCR SON DRC 10 3000 367.0 367.0 35.0 TPS61200DRCR SON DRC 10 3000 367.0 367.0 35.0 TPS61200DRCT SON DRC 10 250 210.0 185.0 35.0 TPS61200DRCT SON DRC 10 250 210.0 185.0 35.0 TPS61201DRCR SON DRC 10 3000 367.0 367.0 35.0 TPS61201DRCR SON DRC 10 3000 367.0 367.0 35.
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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.