TPS65130 Datasheet, PDF (1/29 Pages) Texas Instruments – POSITIVE AND NEGATIVE OUTPUT DC-DC CONVERTER

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Actual Size
4 mm x 4 mm
TPS65130, TPS65131
SLVS493B – MARCH 2004 – REVISED SEPTEMBER 2004
POSITIVE AND NEGATIVE OUTPUT DC-DC CONVERTER
FEATURES
• Dual Adjustable Output Voltages Up to +15 V
and Down to –15 V
• 800-mA Typical Switch Current Limit at Boost
and Inverter Main Switches at TPS65130
• 2-A Typical Switch Current Limit at Boost and
Inverter Main Switches at TPS65131
• Up to 89% Efficiency at Positive Output
Voltage Rail
• Up to 81% Efficiency at Negative Output
Voltage Rail
• Power-Save Mode for High Efficiency at Low
Load Currents
• Independent Enable Inputs for Power Up and
Power Down Sequencing
• Control Output for External PFET to Support
Completely Disconnecting the Battery
• 2.7-V to 5.5-V Input Voltage Range
• Minimum 1.25-MHz Fixed Frequency PWM
Operation
• Thermal Shutdown
• Overvoltage Protection on Both Outputs
• 1-µA Shutdown Current
• Small 4 mm x 4 mm QFN-24 Package (RGE)
APPLICATIONS
• Small to Medium Size OLED Displays
• (TFT) LCD and CCD Bias Supply
• PDAs, Pocket PCs, Smartphones
• Digital Cameras
• Camcorders
DESCRIPTION
The TPS65130/1 is dual-output dc-dc converter gen-
erating a positive output voltage up to 15 V and a
negative output voltage down to -15 V with output
currents in a 200-mA range in typical applications,
depending on input voltage to output voltage ratio.
With a total efficiency up to 85%, the device is ideal
for portable battery-powered equipment. The input
voltage range of 2.7 V to 5.5 V allows the
TPS65130/1 to be directly powered from a Li-ion
battery, from 3 cells NiMH/NiCd or alkaline batteries.
The TPS65130/1 comes in a small 4 mm x 4 mm
QFN-24 package. Together with a minimum switching
frequency of 1.25 MHz it enables designing small
power supply applications because it requires only a
few small external components.
Q1
R7
C2
4.7 mF
L1
4.7 mH
C1
4.7 mF
C3
0.1 mF
D1
U1
INP
BSW
INN
VIN
ENP
PSP
ENN
PSN
GND
VPOS
FBP
VREF
FBN
VNEG
OUTN
CP
CN
PGND
R1
R2
R4
R3
C4
22 mF
V_POS
C8
0.22 mF
C7 C6
D2
L2
4.7 mH
V_NEG
C5
22 mF
TPS65130
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.
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.
Copyright © 2004, Texas Instruments Incorporated