Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - DC/DC voltage regulator Switched-capacitor voltage converter HTSSOP 20

TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125

REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP

DC/DC CONVERTERS

SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

features

High Average Efficiency Over Input Voltage

Range Because of Special Switching

Topology

Minimum 200-mA Output Current From an

Input Voltage Range of 1.8-V to 3.6-V

Regulated 3.3-V or 3-V ±4% Output Voltage

No Inductors Required, Low EMI

Only Four External Components Required

55-µA Quiescent Supply Current

0.05-µA Shutdown Current

Load Disconnected in Shutdown

Integrated Low Battery and Power Good

Detectors

Evaluation Module Available

(TPS60120EVM-142)

applications

Applications Powered by Two Battery Cells

Portable Instruments

Battery-Powered Microprocessor Systems

Miniature Equipment

Backup-Battery Boost Converters

PDAs, Organizers, Laptops

MP-3 Portable Audio Players

Handheld Instrumentation

Medical Instruments (e.g., Glucose Meters)

Cordless Phones

description

The TPS6012x step-up, regulated charge pumps

generate a 3.3-V or 3-V ±4% output voltage from

a 1.8-V to 3.6-V input voltage (two alkaline, NiCd,

or NiMH batteries). They can deliver an output

current of at least 200 mA (100 mA for the

TPS60122 and TPS60123), all from a 2-V input.

Four external capacitors are needed to build a

complete high efficiency dc/dc charge pump

converter. To achieve the high efficiency over a

wide input voltage range, the charge pump

automatically selects between a 1.5x or doubler

conversion mode. From a 2-V input, all ICs can

start with full load current.

The devices feature the power-saving pulse-skip

mode to extend battery life at light loads.

TPS60120, TPS60122, and TPS60124 include a

low battery comparator. TPS60121, TPS60123,

and TPS60125 feature a power-good output. The

logic shutdown function reduces the supply

current to a maximum of 1 µA and disconnects the

load from the input. Special current-control

circuitry prevents excessive current from being

drawn from the battery during start-up. This dc/dc

converter requires no inductors, therefore EMI is

of low concern. It is available in the small,

thermally enhanced 20-pin PowerPAD package

(PWP).

= 66 mA

100

1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6

– Input Voltage – V

Efficiency – %

= 164 mA

= 216 mA

= 116 mA

= 3.3 V

= 25°C

LBI

C1+

C1–

ENABLE

PGND GND

OUT

LBO

C2+

C2–

22 µF

10 µF

Output

3.3 V

2.2 µF

Input

1.8 V to 3.6 V

OFF/ON

efficiency (TPS60120, TPS60121)

typical operating circuit

TPS60120

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 Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

PowerPAD is a trademark of Texas Instruments Incorporated.

Summary of content (30 pages)

PAGE 1
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 features applications D D D D D D D D D D D D D D D D D D D D High Average Efficiency Over Input Voltage Range Because of Special Switching Topology Minimum 200-mA Output Current From an Input Voltage Range of 1.8-V to 3.6-V Regulated 3.
PAGE 2
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 PWP PACKAGE (TPS60120, TPS60122, TPS60124) (TOP VIEW) GND GND ENABLE FB OUT C1+ IN C1– PGND PGND 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 PWP PACKAGE (TPS60121, TPS60123, TPS60125) (TOP VIEW) GND GND ENABLE FB OUT C1+ IN C1– PGND PGND GND GND LBI LBO OUT C2+ IN C2– PGND PGND 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 1
PAGE 3
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 functional block diagram TPS60120, TPS60122, TPS60124 IN C1+ Oscillator C1F ENABLE Charge Pump Power Stages Control Circuit C1– OUT PGND IN C2+ C2F _ C2– OUT PGND + + VREF – Shutdown/ Start-Up Control FB _ _ + LBI + + – 0.
PAGE 4
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 Terminal Functions TERMINAL NAME C1+ NO. I/O DESCRIPTION 6 Positive terminal of the flying capacitor C1 C1– 8 Negative terminal of the flying capacitor C1 C2+ 15 Positive terminal of the flying capacitor C2 C2– 13 Negative terminal of the flying capacitor C2 ENABLE 3 I ENABLE input.
PAGE 5
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 adaptive mode switching (continued) The voltage on the flying capacitors is measured and compared with the supply voltage (VI). If the voltage across the flying capacitors is smaller than half of the supply voltage, then the charge pump switches into the 1.5x conversion-mode. The charge pump switches back from a 1.
PAGE 6
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 low-battery detector (TPS60120, TPS60122, TPS60124) The internal low-battery comparator trips at 1.21 V ±5% when the voltage on LBI ramps down. The battery voltage at which the comparator initiates a low battery warning at the LBO output can easily be programmed with a resistive divider as shown in Figure 1.
PAGE 7
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 low-battery detector (TPS60120, TPS60122, TPS60124) (continued) A 100-nF bypass capacitor should be connected in parallel to R2 if large line transients are expected. These voltage drops can inadvertently trigger the low-battery comparator and produce a wrong low-battery warning signal at the LBO terminal.
PAGE 8
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 DISSIPATION RATING TABLE 1 FREE-AIR TEMPERATURE (see Figure 3) PACKAGE TA ≤ 25_C POWER RATING PWP 700 mW DERATING FACTOR ABOVE TA = 25_C 5.6 mW/_C TA = 70_C POWER RATING TA = 85_C POWER RATING 448 mW 364 mW DISSIPATION RATING TABLE 2 FREE-AIR TEMPERATURE (see Figure 4) PACKAGE TC ≤ 62.
PAGE 9
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 electrical characteristics at CI = 10 µF, C1F = C2F = 2.
PAGE 10
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 electrical characteristics at CI = 10 µF, C1F = C2F = 2.
PAGE 11
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 TYPICAL CHARACTERISTICS TPS60120 TPS60122 EFFICIENCY vs OUTPUT CURRENT EFFICIENCY vs OUTPUT CURRENT 100 100 90 90 80 80 70 VI = 2.4 V 60 Efficiency – % Efficiency – % 70 50 VI = 2.0 V 40 30 VI = 2.4 V 60 50 VI = 2.0 V 40 VI = 2.7 V 30 VI = 2.7 V 20 20 10 10 0 0.1 10 1 10 100 0 0.
PAGE 12
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 TYPICAL CHARACTERISTICS TPS60122 TPS60124 EFFICIENCY vs INPUT VOLTAGE EFFICIENCY vs INPUT VOLTAGE 100 100 IO = 66 mA IO = 50 mA VO = 3.3 V TC = 25°C 90 90 80 80 70 Efficiency – % Efficiency – % 70 IO = 116 mA 60 50 40 60 40 30 30 20 20 10 10 0 1.8 2 2.2 2.4 2.6 2.8 3 VI – Input Voltage – V 3.2 3.4 0 1.8 3.
PAGE 13
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 TPS60122 TPS60124 OUTPUT VOLTAGE vs OUTPUT CURRENT OUTPUT VOLTAGE vs OUTPUT CURRENT 3.40 3.10 3.39 3.08 3.38 3.06 3.37 VO – Output Voltage – V VO – Output Voltage – V TYPICAL CHARACTERISTICS VI = 3.6 V VI = 2.7 V 3.36 3.35 3.34 3.33 3.04 VI = 2.4 V 3.02 VI = 3.6 V 3.00 2.98 2.96 VI = 2.7 V 3.32 VI = 2.4 V VI = 1.8 V 3.
PAGE 14
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 TYPICAL CHARACTERISTICS TPS60124 OUTPUT VOLTAGE RIPPLE vs TIME OUTPUT VOLTAGE vs INPUT VOLTAGE 3.40 3.10 VI = 2.4 V IO = 1 mA VO – Output Voltage Ripple – V 3.08 VO – Output Voltage – V 3.06 3.04 100 mA 3.02 50 mA 3.00 2.98 2.96 2.94 200 mA 3.38 3.36 3.34 3.32 1 mA 2.92 2.9 1.8 3.3 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 0 3.
PAGE 15
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 TYPICAL CHARACTERISTICS OUTPUT VOLTAGE RIPPLE AMPLITUDE vs INPUT VOLTAGE OSCILLATOR FREQUENCY vs INPUT VOLTAGE 320 90 T = 85 °C IO = 100 mA 80 315 70 f – Frequency – kHz VO – Output Voltage Ripple – V pp – mV 100 60 50 40 30 IO = 10 mA 310 T = –40°C 305 T = 25°C 20 300 10 IO = 1 mA 0 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.
PAGE 16
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 TYPICAL CHARACTERISTICS TPS60120 OUTPUT VOLTAGE vs TIME (START-UP TIMING) VO – Output Voltage and Enable Signal – V 3.5 3.0 2.5 VI = 2.4 V RLOAD = 16.5 Ω ENABLE – V 2.0 1.5 1.0 0.5 VO – V 0.0 –0.5 –0.2 –0.1 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
PAGE 17
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 APPLICATION INFORMATION capacitor selection (continued) Generally, the flying capacitors C(xF) will be the smallest. Only ceramic capacitors are recommended because they are low ESR and because they retain their capacitance at the switching frequency.
PAGE 18
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 APPLICATION INFORMATION capacitor selection (continued) Table 3. Recommended Capacitors MANUFACTURER PART NUMBER CAPACITANCE CASE SIZE TYPE Taiyo Yuden LMK212BJ105KG–T 1 µF 0805 Ceramic LMK212BJ225MG–T 2.2 µF 0805 Ceramic LMK316BJ475KL–T 4.
PAGE 19
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 APPLICATION INFORMATION board layout Careful board layout is necessary due to the high transient currents and switching frequency of the converter. All capacitors should be soldered in close proximity to the IC. Connect ground and power ground pins through a short, low-impedance trace.
PAGE 20
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 APPLICATION INFORMATION application proposals paralleling of two TPS6012x to deliver 400-mA total output current Two TPS6012x devices can be connected in parallel to yield higher load currents. The circuit of Figure 29 can deliver up to 400 mA at an output voltage of 3.3 V.
PAGE 21
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 APPLICATION INFORMATION TPS6012x operated with ultralow quiescent current Because the output of the TPS6012x is isolated from the input when the devices are disabled, and because the internal resistive divider is disconnected in shutdown, an ultralow quiescent current mode can be implemented.
PAGE 22
TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 APPLICATION INFORMATION related information application reports For more application information see: D D D PowerPAD Application Report, Literature Number SLMA002 TPS6010x/TPS6011x Charge Pump Application Report, Literature Number SLVA070 Designer Note Page: Powering the TMS320C5420 Using the TPS60100, TPS76918, and the TPS3305-18, Liter
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 10-Jun-2014 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-Jul-2012 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) TPS60120PWPR HTSSOP PWP 20 2000 330.0 16.4 TPS60121PWPR HTSSOP PWP 20 2000 330.0 TPS60123PWPR HTSSOP PWP 20 2000 330.0 TPS60124PWPR HTSSOP PWP 20 2000 330.0 6.95 7.1 1.6 8.0 16.0 Q1 16.4 6.95 7.1 1.6 8.0 16.0 Q1 16.4 6.95 7.1 1.6 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS60120PWPR HTSSOP PWP 20 2000 367.0 367.0 38.0 TPS60121PWPR HTSSOP PWP 20 2000 367.0 367.0 38.0 TPS60123PWPR HTSSOP PWP 20 2000 367.0 367.0 38.0 TPS60124PWPR HTSSOP PWP 20 2000 367.0 367.0 38.
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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.