Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - DC/DC voltage regulator Holder WSON 8

100

Efficiency - %

V = 4.2 V

V = 5 V

V = 3.7 V

L = 1.2 H (NRG4026T 1R2),

C = 22 F (0603 size),

V = 3.3 V,

Mode: Auto PFM/PWM

OUT

0 0.6 1 1.2 1.4 1.6

I - Load Current - A

0.2 0.4 0.8

TYPICAL APPLICATION CIRCUIT

V = 2.7 V to 6 V

22 pF

1.0 H

180 k

360 k

PVIN

PGND

TPS62060

AVIN

MODE

V = 1.8 V

up to 1.6 A

OUT

10 F

OUT

AGND

TPS62061, TPS62063

TPS62060

www.ti.com

SLVSA95A –MARCH 2010– REVISED JANUARY 2011

3-MHz 1.6A Step Down Converter in 2x2 SON Package

Check for Samples: TPS62061, TPS62063, TPS62060

FEATURES

DESCRIPTION

• 3 MHz Switching Frequency

The TPS62060 is a highly efficient synchronous

• V

Range from 2.7V to 6V

step-down DC-DC converter and provides up to 1.6A

• 1.6A Output Current

output current.

• Up to 97% Efficiency

With an input voltage range of 2.7V to 6V the device

• Power Save Mode / 3 MHz Fixed-PWM Mode

is a perfect fit for power conversion from a single

• Output Voltage Accuracy in PWM Mode ±1.5%

Li-Ion battery as well from 5V or 3.3V system supply

• Output Discharge Function

rails. The TPS62060 operates at 3-MHz fixed

frequency and enters Power Save Mode operation at

• Typical 18 µA Quiescent Current

light load currents to maintain high efficiency over the

• 100% Duty Cycle for Lowest Dropout

entire load current range. The Power Save Mode is

• Voltage Positioning

optimized for low output voltage ripple. For low noise

• Clock Dithering

applications, the device can be forced into fixed

• Supports Maximum 1mm Height Solutions

frequency PWM mode by pulling the MODE pin high.

• Available in a 2x2x0.75mm SON

In the shutdown mode, the current consumption is

reduced to less than 1µA and an internal circuit

APPLICATIONS

discharges the output capacitor.

• POL

TPS62060 is optimized for operation with a tiny

• Notebooks, Pocket PCs

1.0µH inductor and a small 10µF output capacitor to

achieve smallest solution size and high regulation

• Portable Media Players

performance.

• DSP Supply

The TPS62060 is available in a small 2x2x0.75mm

8-pin SON package.

vertical spacer

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 (26 pages)

PAGE 1
TPS62061, TPS62063 TPS62060 SLVSA95A – MARCH 2010 – REVISED JANUARY 2011 www.ti.com 3-MHz 1.6A Step Down Converter in 2x2 SON Package Check for Samples: TPS62061, TPS62063, TPS62060 FEATURES 1 • • • • • • • • • • • • • 2 3 MHz Switching Frequency VIN Range from 2.7V to 6V 1.6A Output Current Up to 97% Efficiency Power Save Mode / 3 MHz Fixed-PWM Mode Output Voltage Accuracy in PWM Mode ±1.
PAGE 2
TPS62061, TPS62063 TPS62060 SLVSA95A – MARCH 2010 – REVISED JANUARY 2011 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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TPS62061, TPS62063 TPS62060 SLVSA95A – MARCH 2010 – REVISED JANUARY 2011 www.ti.com RECOMMENDED OPERATING CONDITIONS MIN AVIN , PVIN Supply voltage NOM MAX 2.7 6 Output current capability 1600 UNIT V mA Output voltage range for adjustable voltage 0.8 VIN V L Effective Inductance Range 0.7 1.0 1.6 µH COUT Effective Output Capacitance Range 4.
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TPS62061, TPS62063 TPS62060 SLVSA95A – MARCH 2010 – REVISED JANUARY 2011 www.ti.com ELECTRICAL CHARACTERISTICS (continued) Over full operating ambient temperature range, typical values are at TA = 25°C. Unless otherwise noted, specifications apply for condition VIN = EN = 3.6V. External components CIN = 10μF 0603, COUT = 10μF 0603, L = 1.0μH, see the parameter measurement information.
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TPS62061, TPS62063 TPS62060 SLVSA95A – MARCH 2010 – REVISED JANUARY 2011 www.ti.com FUNCTIONAL BLOCK DIAGRAM AVIN PVIN Current Limit Comparator Undervoltage Lockout 1.8V Thermal Shutdown Limit High Side PFM Comparator Reference 0.6V VREF FB VREF Softstart VOUT RAMP CONTROL Gate Driver Anti Shoot-Through Control Stage Error Amp. VREF SW Integrator FB Internal FB Network* MODE * MODE/ PG PWM Comp. Zero-Pole AMP.
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TPS62061, TPS62063 TPS62060 SLVSA95A – MARCH 2010 – REVISED JANUARY 2011 www.ti.com TYPICAL CHARACTERISTICS Table 1. Table of Graphs FIGURE η Efficiency Output Voltage Accuracy Load Current, VOUT = 1.2 V, Auto PF//PWM Mode, Linear Scale Figure 1 Load Current, VOUT = 1.8 V, Auto PFM/PWM Mode, Linear Scale Figure 2 Load Current, VOUT = 3.3 V, PFM/PWM Mode, Linear Scale Figure 3 Load Current, VOUT = 1.8 V, Auto PFM/PWM Mode vs. Forced PWM Mode, Logarithmic Scale Figure 4 Load Current, VOUT = 1.
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TPS62061, TPS62063 TPS62060 SLVSA95A – MARCH 2010 – REVISED JANUARY 2011 www.ti.com EFFICIENCY vs LOAD CURRENT 100 EFFICIENCY vs LOAD CURRENT 100 VIN = 3.7 V Auto PFM/PWM Mode 95 90 90 VIN = 4.2 V 80 VIN = 5 V 70 Efficiency - % Efficiency - % 85 80 75 70 L = 1.2 mH (NRG4026T 1R2), COUT = 22 mF (0603 size), VOUT = 3.3 V, Mode: Auto PFM/PWM 60 55 50 40 0 0.2 0.4 0.6 0.8 1 1.2 IL - Load Current - A 1.4 20 0 0.001 1.6 0.01 0.1 IL - Load Current - A 1 10 Figure 3. VOUT = 3.
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TPS62061, TPS62063 TPS62060 SLVSA95A – MARCH 2010 – REVISED JANUARY 2011 www.ti.com SHUTDOWN CURRENT vs INPUT VOLTAGE AND AMBIENT TEMPERATURE QUIESCENT CURRENT vs INPUT VOLTAGE 25 TA = 85°C TA = 85°C 20 0.75 Iq - Quiesent Current - mA ISHDN - Shutdown Current - mA 1 0.50 TA = 25°C 0.25 3 3.5 4 4.5 5 VI - Input Voltage - V 5.5 10 3 3.5 4 4.5 5 VI - Input Voltage - V 6 Figure 8. OSCILLATOR FREQUENCY vs INPUT VOLTAGE STATIC DRAIN-SOURCE ON-STATE RESISTANCE vs INPUT VOLTAGE 0.
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TPS62061, TPS62063 TPS62060 SLVSA95A – MARCH 2010 – REVISED JANUARY 2011 www.ti.com STATIC DRAIN-SOURCE ON-STATE RESISTANCE vs INPUT VOLTAGE RDISCHARGE vs INPUT VOLTAGE 0.2 600 0.18 500 0.16 400 TJ = 25°C 0.12 RDischarge - W RDSON - W VO = 3.3 V TJ = 85°C 0.14 TJ = -40°C 0.1 0.08 VO = 1.8 V 300 200 0.06 VO = 1.2 V 0.04 100 0.02 0 2.5 3 3.5 4 4.5 5 VI - Input Voltage - V 5.5 6 0 2.5 3 Figure 11. High-Side Switch 3.5 4 4.5 5 VI - Input Voltage - V 5.5 6 Figure 12.
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TPS62061, TPS62063 TPS62060 SLVSA95A – MARCH 2010 – REVISED JANUARY 2011 www.ti.com VOUT100 mV/Div VOUT100 mV/Div SW 2V/Div SW 2V/Div ICOIL1A/Div ICOIL1A/Div VIN = 3.6 V, VOUT = 1.2 V, IOUT = 0.2 A to 1 A MODE = VIN ILOAD500 mA/Div VIN = 3.6 V, VOUT = 1.2 V, IOUT = 20 mA to 250 mA ILOAD500 mA/Div Time Base - 10 µs/Div Time Base - 10 µs/Div Figure 15. Load Transient Response PWM Mode 0.2A To 1A Figure 16. Load Transient PFM Mode 20 mA to 250mA VIN = 3.6 V to 4.2 V, VOUT = 1.
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TPS62061, TPS62063 TPS62060 SLVSA95A – MARCH 2010 – REVISED JANUARY 2011 www.ti.com 2 V/Div 500 mV/Div 1 V/Div 2 A/Div 500 mA/Div 50 mV/Div VIN = 3.6 V to 4.2 V, VOUT = 1.8 V, IOUT = 50 mA, L = 1.2 mH, COUT = 10 mF 500 mA/Div Time Base - 100 ms/Div Figure 19. Line Transient PFM Mode EN 1 V/Div VIN = 3.6 V, L = 1.2 mH, VOUT = 1.8 V, COUT = 10 mF Load = 2R2 Time Base - 100 ms/Div Figure 20. Startup Into Load – VOUT 1.8 V VIN = 3.6 V, VOUT = 1.
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TPS62061, TPS62063 TPS62060 SLVSA95A – MARCH 2010 – REVISED JANUARY 2011 www.ti.com DETAILED DESCRIPTION OPERATION The TPS62060 step down converter operates with typically 3MHz fixed frequency pulse width modulation (PWM) at moderate to heavy load currents. At light load currents the converter can automatically enter Power Save Mode and operates then in PFM (Pulse Frequency Mode) mode.
PAGE 13
TPS62061, TPS62063 TPS62060 SLVSA95A – MARCH 2010 – REVISED JANUARY 2011 www.ti.com Output voltage Voltage Positioning Vout +1% PFM Comparator threshold Light load PFM Mode Vout (PWM) moderate to heavy load PWM Mode Figure 22. Power Save Mode Operation with automatic Mode transition 100% Duty Cycle Low Dropout Operation The device starts to enter 100% duty cycle mode as the input voltage comes close to the nominal output voltage.
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TPS62061, TPS62063 TPS62060 SLVSA95A – MARCH 2010 – REVISED JANUARY 2011 www.ti.com The condition of the MODE pin can be changed during operation and allows efficient power management by adjusting the operation mode of the converter to the specific system requirements. ENABLE The device is enabled by setting EN pin to high. At first, the internal reference is activated and the internal analog circuits are settled. Afterwards, the soft start is activated and the output voltage is ramped up.
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TPS62061, TPS62063 TPS62060 SLVSA95A – MARCH 2010 – REVISED JANUARY 2011 www.ti.com APPLICATION INFORMATION VIN = 2.7 V to 6 V TPS62060 PVIN SW R1 360 kΩ AVIN EN MODE AGND PGND CIN 10 µF VOUT = 1.8 V up to 1.6 A L 1.0 µH FB Cff 22 pF COUT 10 µF R2 180 kΩ Figure 23. TPS62060 1.8V Adjustable Output Voltage Configuration OUTPUT VOLTAGE SETTING The output voltage can be calculated to: R V OUT + VREF 1) 1 R2 ǒ Ǔ with an internal reference voltage VREF typically 0.6V.
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TPS62061, TPS62063 TPS62060 SLVSA95A – MARCH 2010 – REVISED JANUARY 2011 I Lmax + I outmax ) www.ti.com DI L 2 (2) With: f = Switching Frequency (3MHz typical) L = Inductor Value ΔIL = Peak-to-Peak inductor ripple current ILmax = Maximum inductor current Ioutmax = Maximum output current A more conservative approach is to select the inductor current rating just for the switch current of the converter.
PAGE 17
TPS62061, TPS62063 TPS62060 SLVSA95A – MARCH 2010 – REVISED JANUARY 2011 www.ti.com Take care when using only small ceramic input capacitors. When a ceramic capacitor is used at the input and the power is being supplied through long wires, such as from a wall adapter, a load step at the output or VIN step on the input can induce ringing at the VIN pin. This ringing can couple to the output and be mistaken as loop instability or could even damage the part by exceeding the maximum ratings. Table 3.
PAGE 18
TPS62061, TPS62063 TPS62060 SLVSA95A – MARCH 2010 – REVISED JANUARY 2011 www.ti.com LAYOUT CONSIDERATIONS vertical spacer vertical spacer Mode Enable 5.08 mm VIN GND CIN COUT VOUT 7.19 mm 2.54 mm R2 R1 CFF GND L 3.81 mm Figure 24. PCB Layout As for all switching power supplies, the layout is an important step in the design. Proper function of the device demands careful attention to PCB layout. Care must be taken in board layout to get the specified performance.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-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 22-Feb-2014 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing TPS62060DSGR WSON DSG 8 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 3000 180.0 8.4 2.3 2.3 1.15 4.0 8.0 Q2 TPS62060DSGT WSON DSG 8 250 180.0 8.4 2.3 2.3 1.15 4.0 8.0 Q2 TPS62061DSGR WSON DSG 8 3000 180.0 8.4 2.3 2.3 1.15 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 22-Feb-2014 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS62060DSGR WSON DSG 8 3000 210.0 185.0 35.0 TPS62060DSGT WSON DSG 8 250 210.0 185.0 35.0 TPS62061DSGR WSON DSG 8 3000 210.0 185.0 35.0 TPS62061DSGT WSON DSG 8 250 210.0 185.0 35.0 TPS62063DSGR WSON DSG 8 3000 210.0 185.0 35.0 TPS62063DSGT WSON DSG 8 250 210.0 185.0 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.