TPS65135_15_15 Datasheet, PDF (1/27 Pages) Texas Instruments – TPS65135 Single-Inductor, Multiple-Output Regulator

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TPS65135
SLVS704B – NOVEMBER 2011 – REVISED JUNE 2015
TPS65135 Single-Inductor, Multiple-Output Regulator
1 Features
•1 Single-Inductor, Multiple-Output Topology
• 2.5-V to 5.5-V Input Voltage Range
• 750-mW Output Power at V_I = 2.9 V
• Positive Output Voltages Up to 6 V
• Negative Output Voltage Down to –7 V
• 1% Output Voltage Accuracy
• Up to 50% Output Current Mismatch Allowed
• Excellent Line Regulation
• Advanced Power-Save Mode for Light-Load
Efficiency
• Low-Noise Operation
• Out-of-Audio Mode
• Short-Circuit Protection
• Thermal Shutdown
• 3-mm × 3-mm Thin QFN Package
2 Applications
• AMOLED Display Power Supplies
• LCD Power Supplies
• Split-Rail Power Supplies for Op-Amps, Data
Converters, Data Interfaces, etc.
3 Description
The TPS65135 device is a high-efficiency split-rail
power supply. Thanks to its single-inductor, multiple-
output (SIMO) topology, the converter uses very few
external components. The device operates with a
buck-boost topology and generates positive and
negative output voltages above or below the input
supply voltage. The SIMO topology achieves
excellent line and load regulation, which is necessary,
for example, to avoid disturbance of a mobile phone
display as a result of input voltage variations that
occur during transmit periods in mobile
communication systems. The device can also be
used as a general-purpose split-rail supply as long as
the output current mismatch between the rails is less
than 50%.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS65135
WQFN (16)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Schematic
L1
2.2 µH
VI
2.5 V to 5.5 V
C1
10 µF
TPS65135
15, 16 _L1
8 _EN
1 _VIN
C4
100 nF
4 _VAUX
5 _GND
11, 12 _PGND
L2 ^{13, 14}
OUTP ^{9, 10}
FB ⁷
FBG ⁶
OUTN ^{2, 3}
R1
365 k
R2
120 k
R3
487 k
VO(POS)
5 V, 80 mA
C2
4.7 µF
C3
4.7 µF
VO(NEG)
±5 V, 80 mA
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.