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TPS65131RGER-TPS65131RGERG4
Adjustable, Dual Output, Positive & Negative 1950-mA Switch Boost DC/DC 4x4 QFN-24
INP
VNEG
BSW FBP
ENN
INN
4.7 μF
OUTN
TPS65130/131
VPOS
4.7 μH C5
22 μF
22 μF
FBN
VREF
PSP
ENP
VINVI
220 nF
VPOS
VNEG
L1
4.7 μH
R7
100
100 nFC2
4.7 μF
C10
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TPS65130, TPS65131SLVS493D –MARCH 2004–REVISED JANUARY 2016
TPS6513x Positive and Negative Output DC-DC Converter Features 2.7-Vto 5.5-V Input Voltage Range Dual Adjustable Output Voltages Upto15V and
Downto –15V 800-mA Typical Switch Current Limitat Boost and
Inverter Main Switchesat TPS65130 2-A Typical Switch Current Limitat Boost and
Inverter Main Switchesat TPS65131 Upto 89% Efficiencyat Positive Output
Voltage Rail Upto 81% Efficiencyat Negative Output
Voltage Rail Power-Save Mode for High Efficiencyat Low Load
Currents Independent Enable Inputs for Power-Up and
Power-Down Sequencing Control Outputfor External PFETto Support
Completely Disconnecting the Battery Minimum 1.25-MHz Fixed Frequency PWM
Operation Thermal Shutdown Overvoltage Protection on Both Outputs 1-µA Shutdown Current Small 4-mmx 4-mm VQFN-24 Package (RGE)
Applications LCD and OLED Displays Industrial Applications Data Acquisition Audio General-Purpose Split-Rail Supplies
DescriptionThe TPS6513x is dual-output DC-DC converter
generatinga positive output voltage upto 15V anda
negative output voltage downto –15V with output
currentsina 200-mA rangein typical applications,
depending on input voltageto output voltage ratio.
Witha total efficiency upto 85%, the deviceis ideal
for portable battery-powered equipment. The input
voltage rangeof 2.7Vto 5.5V allows the devicesto powered from batteriesor from fixed 3.3-Vor 5-V
supplies. The TPS6513x comesina small 4-mm×4- VQFN-24 package. Together witha minimum
switching frequencyof 1.25 MHz, the device enables
designing small power supply applications becauseit
requires onlya few small external components.
The converter operates witha fixed frequency PWM
control topology and,if power-save modeis enabled, usesa pulse-skipping modeat light-load currents.It
operates with only 500-µA device quiescent current.
Independent enable pins allow power-up and power-
down sequencingfor both outputs. The device hasan
internal current limit overvoltage protection anda
thermal shutdown for highest reliability under fault
conditions.
Device Information(1)(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Typical Application Schematic
