1

FEATURES

DESCRIPTION

APPLICATIONS

R1

294kW

V

15V/50mA

O

TPS61093

CP1

CP2

SW

FB

EN

OUT

VO

VIN

GND

SS

C1

4.7

F

m

R2

10.2kW

L1

10

H

m

V 1.6Vto6V

I

R3

200kW

C5

1

F

m

C3

100nF

C2

0.1

F

m

C4

1

F

m

TPS61093

LOW INPUT BOOST CONVERTER WITH INTEGRATED POWER DIODE AND

INPUT/OUTPUT ISOLATION

• Input Range: 1.6-V to 6-V

• Integrated Power Diode and Isolation FET

The TPS61093 is a 1.2-MHz, fixed-frequency boost

converter designed for high integration and high

• 20-V Internal Switch FET With 1.1-A Current

reliability. The IC integrates a 20-V power switch,

• Fixed 1.2-MHz Switching Frequency

input/output isolation switch, and power diode. When

• Efficiency at 15-V Output up to 88%

the output current exceeds the over load limit, the

IC’s isolation switch opens up to disconnect the

• Over Load and Over Voltage Protection

output from the input. This protects the IC and the

• Programmable Soft Start-up

input supply. The isolation switch also disconnects

• Load Discharge Path After IC Shutdown

the output from the input during shutdown to minimize

leakage current. When the IC is shutdown, the output

• 2.5 × 2.5 × 0.8 mm SON Package

capacitor is discharged to a low voltage level by

internal diodes. Other protection features include

1.1-A peak over-current protection (OCP) at each

• Glucose Meter

cycle, output over voltage protection (OVP), thermal

• OLED Power Supply

shutdown, and under voltage lockout (UVLO).

• 3.3-V to 12-V, 5-V to 12-V Boost Converter

With its 1.6-V minimum input voltage, the IC can be

powered by two alkaline batteries, a single Li-ion

battery, or 3.3-V and 5-V regulated supply. The

output can be boosted up to 17-V. The TPS61093 is

available in 2.5 mm × 2.5 mm SON package with

thermal pad.

Figure 1. Typical Application

PACKAGE MARKING

–40°C to 85°C

TPS61093DSK

OAP

(1)

For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

web site at www.ti.com

(2)

The DSK package is available in tape and reel. Add R suffix (TPS61093DSKR) to order quantities of 3000 parts per reel, or add T suffix

(TPS61093DSKT) to order 250 parts per reel.

1

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.

Copyright © 2009, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.