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

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   

SLVS213C − MAY 1999 − REVISED AUGUST 2008

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

features

D Up to 200-mA Output Current

D Less Than 5-mV

Output Voltage Ripple

D No Inductors Required/Low EMI

D Regulated 3.3-V ±4% Output

D Only Four External Components Required

D Up to 90% Efficiency

D 1.8-V to 3.6-V Input Voltage Range

D 50-µA Quiescent Supply Current

D 0.05-µA Shutdown Current

D Load Isolated in Shutdown

D Space-Saving Thermally-Enhanced TSSOP

PowerPAD Package

D Evaluation Module Available

(TPS60100EVM−131)

applications

Replaces DC/DC Converters With Inductors in

− Battery-Powered Applications

− Two Battery Cells to 3.3-V Conversion

− Portable Instruments

− Battery-Powered Microprocessor and

DSP Systems

− Miniature Equipment

− Backup-Battery Boost Converters

− PDAs

− Laptops

− Handheld Instrumentation

− Medical Instruments

− Cordless Phones

description

The TPS60100 step-up, regulated charge pump

generates a 3.3-V ±4% output voltage from a

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

NiMH batteries). Output current is 200 mA from a

2-V input. Only four external capacitors are

needed to build a complete low-noise dc/dc

converter. The push-pull operating mode of two

single-ended charge pumps assures the low

output voltage ripple as current is continuously

transferred to the output. From a 2-V input, the

TPS60100 can start into full load with loads as low

as 16 Ω.

The TPS60100 features either constant frequen-

cy mode to minimize noise and output voltage

ripple or the power-saving pulse-skip mode to

extend battery life at light loads. The TPS60100

switching frequency is 300 kHz. The logic

shutdown function reduces the supply current to

1-µA (max) 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 and has low EMI. It is

available in the small 20-pin TSSOP PowerPAD

package (PWP).

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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.

PowerPAD is a trademark of Texas Instruments Incorporated.

output voltage ripple

typical operating circuit

Figure 1

3.45

3.25

3.3

3.35

3.4

3.05

3.1

3.15

3.2

501234 6789

t − Time − µs

− Output Voltage − VV

SKIP =COM = 3V8 = 0 V

= 2.4 V

= 200 mA

= 22 µF

X5R Ceramic

C1+

C1−

ENABLE

OUT

C2+

C2−

SYNC

SKIP COM 3V8

PGND GND

INPUT

1.8 V to

3.6 V

10 µF

OUTPUT

3.3 V

200 mA

22 µF

2.2 µF

OFF/ON

TPS60100

Summary of content (28 pages)

PAGE 1
SLVS213C − MAY 1999 − REVISED AUGUST 2008 features D D D D D D D D D D D D applications Up to 200-mA Output Current Less Than 5-mVpp Output Voltage Ripple No Inductors Required/Low EMI Regulated 3.3-V ±4% Output Only Four External Components Required Up to 90% Efficiency 1.8-V to 3.6-V Input Voltage Range 50-µA Quiescent Supply Current 0.
PAGE 2
SLVS213C − MAY 1999 − REVISED AUGUST 2008 PWP PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 9 10 GND SYNC ENABLE FB OUT C1+ IN C1− PGND PGND 20 19 18 17 16 15 14 13 12 11 GND 3V8 COM SKIP OUT C2+ IN C2− PGND PGND Thermal Pad Figure 2. Bottom View of PWP Package, Showing the Thermal Pad AVAILABLE OPTIONS PACKAGE TSSOP† (PWP) TPS60100PWP † This package is available taped and reeled.
PAGE 3
SLVS213C − MAY 1999 − REVISED AUGUST 2008 absolute maximum ratings (unless otherwise noted)†‡ Input voltage range, VI (IN, OUT, ENABLE, SKIP, COM, 3V8, FB, SYNC) . . . . . . . . . . . . . . . . −0.3 V to 5.5 V Differential input voltage, VID (C1+, C2+ to GND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to (VOUT + 0.3 V) Differential input voltage, VID (C1−, C2− to GND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 4
SLVS213C − MAY 1999 − REVISED AUGUST 2008 electrical characteristics at CIN = 10 µF, C1F = C2F = 2.2 µF†, CO = 22 µF, TC = −40°C to 85°C, VIN = 2 V, VFB = VO, VENABLE = VIN, VSKIP = VIN or 0 V and VCOM = V3V8 = VSYNC = 0 V (unless otherwise noted) PARAMETER TEST CONDITIONS VIN Input voltage VIN(UV) IO(MAX) Input undervoltage lockout threshold MIN TYP 1.8 1.6 Maximum output current MAX 3.6 V 1.8 V 200 mA 1.
PAGE 5
SLVS213C − MAY 1999 − REVISED AUGUST 2008 electrical characteristics for preregulated 3.8-V Mode (V(3V8) = VIN), CIN = 10 µF, C1F = C2F = 2.2 µF†, CO = 22 µF, TC = −40°C to 85°C, VIN = 2.4 V, VFB = VO, VENABLE = VIN, VSKIP = VIN or 0 V and VCOM = VSYNC = 0 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN VIN IO(MAX) Input voltage 2.2 Maximum output current 200 VO IO(LEAK) Output voltage 2.2 V < VIN < 3.
PAGE 6
SLVS213C − MAY 1999 − REVISED AUGUST 2008 TYPICAL CHARACTERISTICS† EFFICIENCY vs OUTPUT CURRENT (VO = 3.3 V) EFFICIENCY vs OUTPUT CURRENT (VO = 3.3 V) 100 100 VIN = 1.8 V 90 V(SKIP) = 0 V V(3V8) = 0 V 90 VIN = 2 V 80 VIN = 2.4 V 60 50 40 50 40 30 20 20 10 V(SKIP) = VIN, V(3V8) = 0 V 1 100 10 VIN = 2.7 V 60 30 10 VIN = 2.4 V 70 VIN = 2.7 V Efficiency − % Efficiency − % VIN = 2 V 80 70 0 0.
PAGE 7
SLVS213C − MAY 1999 − REVISED AUGUST 2008 TYPICAL CHARACTERISTICS† QUIESCENT SUPPLY CURRENT vs INPUT VOLTAGE QUIESCENT SUPPLY CURRENT vs INPUT VOLTAGE 2 V(SKIP) = VIN V(3V8) = 0 V 55 I Q − Quiescent Supply Current − mA I Q − Quiescent Supply Current − µ A 60 50 45 40 35 30 25 1.5 2 2.5 3.5 3 V(SKIP) = 0 V V(3V8) = 0 V 1.75 1.5 1.25 1 1.5 4 VIN − Input Voltage − V 4 OUTPUT VOLTAGE vs OUTPUT CURRENT 3.6 4.
PAGE 8
SLVS213C − MAY 1999 − REVISED AUGUST 2008 TYPICAL CHARACTERISTICS† OUTPUT VOLTAGE vs INPUT VOLTAGE OUTPUT VOLTAGE vs INPUT VOLTAGE 3.5 3.45 3.4 3.35 3.3 3.25 3.2 3.15 3.8 3.7 3.4 3.1 3.5 3 IO = 200 mA 3.3 3.05 2.5 IO = 100 mA 3.5 3.2 2 IO = 10 mA 3.6 3.1 3 1.5 V(SKIP) = VIN or 0 V V(3V8) = VIN 3.9 VO − Output Voltage − V VO − Output Voltage − V 3.10 V(SKIP) = VIN or 0 V V(3V8) = 0 V IO = 1 mA to 200 mA 3 1.
PAGE 9
SLVS213C − MAY 1999 − REVISED AUGUST 2008 TYPICAL CHARACTERISTICS† 3.35 VO − Output Voltage − V V(SKIP) = 0 V V(3V8) = 0 V V(IN) = 2.7 V IO = 10 mA to 200 mA LOAD TRANSIENT RESPONSE Constant Frequency Mode 3.34 3.33 I O − Output Current − mA 3.32 600 400 200 0 0 2 4 6 8 10 12 14 16 18 20 I O − Output Current − mA VO − Output Voltage − V LOAD TRANSIENT RESPONSE 3.36 3.39 V(SKIP) = VIN V(3V8) = 0 V V(IN) = 2.
PAGE 10
SLVS213C − MAY 1999 − REVISED AUGUST 2008 TYPICAL CHARACTERISTICS† FREQUENCY SPECTRUM CONSTANT FREQUENCY MODE‡ FREQUENCY SPECTRUM PULSE-SKIP MODE‡ 90 100 V(SKIP) = 0 V V(3V8) = 0 V VIN = 2.4 V IO = 100 mA RBW = 300 Hz 80 80 60 Output − dB µ V Output − dB µ V 70 V(SKIP) = VIN V(3V8) = 0 V VIN = 2.4 V IO = 100 mA RBW = 300 Hz 50 40 60 40 30 20 20 10 0 0 0 2.5 7.5 5 10 0 2.
PAGE 11
SLVS213C − MAY 1999 − REVISED AUGUST 2008 TYPICAL CHARACTERISTICS† EFFICIENCY vs INPUT VOLTAGE EFFICIENCY vs INPUT VOLTAGE 100 100 V(3V8) = 0 V IO = 100 mA 80 80 70 70 Skip = High 60 Skip = Low 50 40 Skip = Low 50 40 30 20 20 10 10 2 2.5 3 3.5 Skip = High 60 30 0 1.5 V(3V8) = VIN IO = 100 mA 90 Efficiency − % Efficiency − % 90 0 1.5 4 2 2.5 Figure 25 START-UP TIMING 4 R0 = 16.5 Ω VIN = 2.4 V V(3V8) = 0 V 3.
PAGE 12
SLVS213C − MAY 1999 − REVISED AUGUST 2008 detailed description operating principle The TPS60100 charge pump provides a regulated 3.3-V output from a 1.8-V to 3.6-V input. It delivers a maximum load current of 200 mA. Designed specifically for space critical battery powered applications, the complete charge pump circuit requires only four external capacitors.
PAGE 13
SLVS213C − MAY 1999 − REVISED AUGUST 2008 detailed description (continued) start-up procedure During start-up, i.e. when ENABLE is set from logic low to logic high, the switches T12 and T14 (charge pump 1), and the switches T22 and T24 (charge pump 2) are conducting to charge up the output capacitor until the output voltage VO reaches 0.8×VIN.
PAGE 14
SLVS213C − MAY 1999 − REVISED AUGUST 2008 detailed description (continued) push-pull operating mode In push-pull operating mode (COM = low), the two single-ended charge pumps operate with 180° phase shift. The oscillator signal has a 50% duty cycle. Each single-ended charge pump transfers charge into its transfer capacitor (CxF) in one-half of the period.
PAGE 15
SLVS213C − MAY 1999 − REVISED AUGUST 2008 detailed description (continued) shutdown Driving ENABLE low places the device in shutdown mode. This disables all switches, the oscillator, and control logic. The device typically draws 0.05-µA (1-µA max) of supply current in this mode. Leakage current drawn from the output is as low as 1 µA max. The device exits shutdown once ENABLE is set high level. The typical no-load shutdown exit time is 10 µs.
PAGE 16
SLVS213C − MAY 1999 − REVISED AUGUST 2008 APPLICATION INFORMATION capacitor selection The TPS60100 requires only four external capacitors as shown in the basic application circuit. Their values are closely linked to the output current capacity, output noise requirements, and mode of operation. Generally, the transfer capacitors (CxF) will be the smallest.
PAGE 17
SLVS213C − MAY 1999 − REVISED AUGUST 2008 APPLICATION INFORMATION For the TPS60100, the smallest board space size can be achieved using Sprague’s 595D-series tantalum capacitors for input and output. However, with the trend towards high capacitance ceramic capacitors in smaller size packages, these type of capacitors might become competitive in size soon. Table 5.
PAGE 18
SLVS213C − MAY 1999 − REVISED AUGUST 2008 APPLICATION INFORMATION layout All capacitors should be soldered in close proximity to the IC. A PCB layout proposal for a two-layer board is given in Figure 33. Care has been taken to connect both single-ended charge pumps symmetrically to the load to achive optimized output voltage ripple performance.
PAGE 19
SLVS213C − MAY 1999 − REVISED AUGUST 2008 APPLICATION INFORMATION applications proposals paralleling of two TPS60100 to deliver 400 mA The TPS60100 can be paralleled to yield higher load currents. The circuit of Figure 34 can deliver 400 mA at an output voltage of 3.3 V. It uses two TPS60100 devices in parallel. The devices can share the output capacitors, but each one requires its own transfer capacitors and input capacitor.
PAGE 20
SLVS213C − MAY 1999 − REVISED AUGUST 2008 APPLICATION INFORMATION related information application reports For more application information see: D PowerPAD Application Report (Literature Number: SLMA002) D TPS6010x/TPS6011x Charge Pump Application Report (Literature Number: SLVA070) device family products Other devices in this family are: 20 PART NUMBER LITERATURE NUMBER TPS60101 SLVS214 Regulated 3.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device TPS60100PWPR Package Package Pins Type Drawing SPQ HTSSOP 2000 PWP 20 Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 330.0 16.4 Pack Materials-Page 1 6.95 B0 (mm) K0 (mm) P1 (mm) 7.1 1.6 8.0 W Pin1 (mm) Quadrant 16.
PAGE 24
PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS60100PWPR 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.