TPS65135 Datasheet, PDF (1/21 Pages) Texas Instruments – Single-Inductor, Multiple-Output (SIMO) Regulator

TPS65135
www.ti.com
SLVS704A – NOVEMBER 2011 – REVISED NOVEMBER 2011
Single-Inductor, Multiple-Output (SIMO) Regulator
Check for Samples: TPS65135
FEATURES
1
•2 SIMO Regulator Technology
• 2.5 V to 5.5 V Input Voltage Range
• 750 mW Output Power at V_IN = 2.9 V
• Positive Output Voltage up to 6 V
• Negative Output Voltage Down to –7 V
• 1% Output Voltage Accuracy
• Output current missmatch of pos and neg rail
up to 50%
• 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
APPLICATIONS
• Active-Matrix OLED Power Supply
• LCD Power Supply
• General dual power supply applications
DESCRIPTION
The TPS65135 is a high efficient single inductor dual output converter. Due to its single-inductor multiple-output
(SIMO) technology the converter uses a minimum of external components. The device operates with a
buck-boost topology and generates a positive and a negative output voltage above or below the input voltage
rail. The SIMO technology enables excellent line and load regulation which is for instance required 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 standard +/- supply as long as the output
current missmatch between the rails is smaller than 50%.
TYPICAL APPLICATION
L1
2.2 mH
V_IN
2.5 V to 5.5 V
C1
10 mF
C4
100 nF
TPS65135
16
L1
15
L1
1
VIN
8
EN
4
VAUX
11
PGND
12
PGND
5
GND
14
L2
13
L2
10
OUTP
9
OUTP
7
FB
6
FBG
3
OUTN
2
OUTN
R1
365 kW
R2
120 kW
R3
487 kW
C2
4.7 mF
V_POS
5 V / 80 mA
C3
4.7 mF
V_NEG
–5 V / 80 mA
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.
All trademarks are the property of their respective owners.
2
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 © 2011, Texas Instruments Incorporated