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



   

   

SLVS216B − JUNE 1999 − JUNE 2008

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

features

D Up to 150-mA Output Current

D Less Than 10-mV

Output Voltage Ripple

D No Inductors Required/Low EMI

D Regulated 5-V ±4% Output

D Only Four External Components Required

D Up to 90% Efficiency

D 2.7-V to 5.4-V Input Voltage Range

D 60-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

(TPS60110EVM−132)

applications

Replaces DC/DC Converters With Inductors in

− Battery-Powered Applications

− Li-Ion Battery to 5-V Conversion

− Portable Instruments

− Battery-Powered Microprocessor

Systems

− Miniature Equipment

− Backup-Battery Boost Converters

− PDAs

− Laptops

− Handheld Instrumentation

− Medical Instruments

description

The TPS60111 step-up, regulated charge pump

generates a 5-V ±4% output voltage from a 2.7-V

to 5.4-V input voltage (three alkaline, NiCd, or

NiMH batteries; or, one lithium or lithium ion

battery). Output current is 150 mA from a 3-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 3-V input, the TPS60111 can start

into full load with loads as low as 33 Ω.

The TPS60111 features either constant frequency

mode to minimize noise and output voltage ripple

or the power-saving pulse-skip mode to extend

battery life at light loads. The TPS60111 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 cur-

rent 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

SKIP =COM = CLK = 0 V

= 3.6 V

= 150 mA

= 22 µF + 10 µF

X5R Ceramic

5.2

5.05

5.1

5.15

4.8

4.85

4.9

4.95

− Output Voltage − VV

52.50 0.5 1 1.5 2 3 3.5 4 4.5

t − Time − µs

C1+

C1−

ENABLE

OUT

C2+

C2−

SYNC

SKIP COM CLK

PGND GND

INPUT

2.7 V to

5.4 V

4.7 µF

OUTPUT

5 V

150 mA

15 µF

1 µF

OFF/ON

TPS60110

Summary of content (25 pages)

PAGE 1
SLVS216B − JUNE 1999 − JUNE 2008 features D D D D D D D D D D D D applications Up to 150-mA Output Current Less Than 10-mVpp Output Voltage Ripple No Inductors Required/Low EMI Regulated 5-V ±4% Output Only Four External Components Required Up to 90% Efficiency 2.7-V to 5.4-V Input Voltage Range 60-µA Quiescent Supply Current 0.
PAGE 2
SLVS216B − JUNE 1999 − JUNE 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 CLK 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) TPS60111PWP † This package is available taped and reeled. To order this packaging option, add an R suffix to the part number (e.g.
PAGE 3
SLVS216B − JUNE 1999 − JUNE 2008 absolute maximum ratings (unless otherwise noted)†‡ Input voltage range, VI (IN, OUT, ENABLE, SKIP, COM, CLK, FB, SYNC) . . . . . . . . . . . . . . . . −0.3 V to 5.5 V Differential input voltage, VID (C1+, C2+ to GND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to (VO + 0.3 V) Differential input voltage, VID (C1−, C2− to GND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.
PAGE 4
SLVS216B − JUNE 1999 − JUNE 2008 electrical characteristics at CIN = 15 µF, C1F = C2F = 2.2 µF†, CO = 33 µF, TC = −40°C to 85°C, VIN = 3 V, VFB = VO, VENABLE = VIN, VSKIP = VIN or 0 V and VCOM = VCLK = VSYNC = 0 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN VIN Input voltage 2.7 IO(MAX) Maximum output current 150 VO Output voltage VO(RIP) IO(LEAK) Output voltage ripple 5 5.2 3 V < VIN < 5 V, 0 < IO < 150 mA 4.8 5 5.
PAGE 5
SLVS216B − JUNE 1999 − JUNE 2008 TYPICAL CHARACTERISTICS† EFFICIENCY vs OUTPUT CURRENT EFFICIENCY vs OUTPUT CURRENT 100 100 VIN = 2.7 V 90 V(SKIP) = 0 V VIN = 3 V 80 70 VIN = 3.6 V 60 Efficiency − % Efficiency − % VIN = 3 V 80 70 VIN = 3.3 V 50 40 40 20 20 10 V(SKIP) = VIN 1 VIN = 3.6 V 50 30 0 0.1 VIN = 3.
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SLVS216B − JUNE 1999 − JUNE 2008 TYPICAL CHARACTERISTICS† OUTPUT VOLTAGE vs OUTPUT CURRENT OUTPUT VOLTAGE vs OUTPUT CURRENT 5.3 5.3 V(SKIP) = 0 V V(SKIP) = VIN 5.2 VIN = 5.4 V VIN = 4 V 5.1 VO − Output Voltage − V VO − Output Voltage − V 5.2 VIN = 3.6 V 5 VIN = 3 V 4.9 VIN = 5.4 V VIN = 4 V VIN = 3.6 V 5.1 5 VIN = 3 V 4.9 VIN = 2.7 V VIN = 2.7 V 4.8 4.8 4.7 1 100 10 4.
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SLVS216B − JUNE 1999 − JUNE 2008 TYPICAL CHARACTERISTICS† OUTPUT VOLTAGE vs TIME OUTPUT VOLTAGE vs TIME 5.07 V(SKIP) = 0 V VIN = 3.6 V IO = 150 mA CO = 22 µF + 10 µF X5R ceramic 5.04 5.03 5.02 5.01 0 2 Pulse-Skip Mode Constant Frequency Mode VO − Output Voltage − V VO − Output Voltage − V 5.05 6 4 5.03 5.01 V(SKIP) = VIN VIN = 3.6 V IO = 150 mA 4.99 10 8 5.
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SLVS216B − JUNE 1999 − JUNE 2008 TYPICAL CHARACTERISTICS† LINE TRANSIENT RESPONSE VO − Output Voltage − V VO − Output Voltage − V LINE TRANSIENT RESPONSE 5.08 V(SKIP) = 0 V IO = 150 mA 5.06 Constant Frequency Mode 5.04 5.02 5.08 5.
PAGE 9
SLVS216B − JUNE 1999 − JUNE 2008 TYPICAL CHARACTERISTICS† FREQUENCY SPECTRUM CONSTANT FREQUENCY MODE‡ FREQUENCY SPECTRUM PULSE-SKIP MODE‡ 90 90 V(SKIP) = 0 V VIN = 3 V IO = 10 mA RBW = 300 Hz 80 70 60 Output − dB µ V Output − dB µ V 70 V(SKIP) = VIN VIN = 3 V IO = 10 mA RBW = 300 Hz 80 50 40 60 50 40 30 30 20 20 10 10 0 0 0 2.5 5 7.5 10 0 2.5 f − Frequency − MHz 7.
PAGE 10
SLVS216B − JUNE 1999 − JUNE 2008 detailed description operating principle The TPS60111 charge pump provides a regulated 5-V output from a 2.7-V to 5.4-V input. It delivers a maximum load current of 150 mA. Designed specifically for space critical battery powered applications, the complete charge pump circuit requires only four external capacitors. The circuit can be optimized for highest efficiency at light loads or lowest output noise.
PAGE 11
SLVS216B − JUNE 1999 − JUNE 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. When the start-up comparator detects this limit, the IC begins to operate in the mode selected with SKIP and COM.
PAGE 12
SLVS216B − JUNE 1999 − JUNE 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 13
SLVS216B − JUNE 1999 − JUNE 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 20 µs.
PAGE 14
SLVS216B − JUNE 1999 − JUNE 2008 APPLICATION INFORMATION capacitor selection The TPS60111 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 15
SLVS216B − JUNE 1999 − JUNE 2008 APPLICATION INFORMATION For the TPS60111, 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 soon become competitive in size. Table 5.
PAGE 16
SLVS216B − JUNE 1999 − JUNE 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 29. Care has been taken to connect both single-ended charge pumps symmetrically to the load to achive optimized output voltage ripple performance. The proposed layout also provides improved thermal performance as the exposed leadframe is soldered to the PCB.
PAGE 17
SLVS216B − JUNE 1999 − JUNE 2008 APPLICATION INFORMATION applications proposals TPS60111 with LC output filter for ultra low ripple For applications where extremely low output ripple is required, a small LC filter is recommended. This is shown in Figure 30. The addition of a small inductor and filter capacitor will reduce the output ripple well below what could be achieved with capacitors alone.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 10-Jun-2014 continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device TPS60111PWPR 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.
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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) TPS60111PWPR 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.