SLVSBB2F
May 2012 – August 2024
TPS65131-Q1
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Device Comparison
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Switching Characteristics
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Power Conversion
7.3.2
Control
7.3.3
Output Rails Enable or Disable
7.3.4
Load Disconnect
7.3.5
Soft Start
7.3.6
Overvoltage Protection
7.3.7
Undervoltage Lockout
7.3.8
Overtemperature Shutdown
7.4
Device Functional Modes
7.4.1
Power-Save Mode
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
TPS65131-Q1 With VPOS = 10.5V, VNEG = –10V
8.2.2
Design Requirements
8.2.3
Detailed Design Procedure
8.2.3.1
Programming the Output Voltage
8.2.3.1.1
Boost Converter
8.2.3.1.2
Inverting Converter
8.2.3.1.3
Inductor Selection
8.2.3.2
Capacitor Selection
8.2.3.2.1
Input Capacitor
8.2.3.2.2
Output Capacitors
8.2.3.3
Rectifier Diode Selection
8.2.3.4
External P-MOSFET Selection
8.2.3.5
Stabilizing the Control Loop
8.2.3.5.1
Feedforward Capacitors
8.2.3.5.2
Compensation Capacitors
8.2.4
Analog Supply Input Filter
8.2.4.1
RC-Filter
8.2.4.2
LC-Filter
8.2.5
Thermal Information
8.2.6
Application Curves
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Receiving Notification of Documentation Updates
9.2
Support Resources
9.3
Trademarks
9.4
Electrostatic Discharge Caution
9.5
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
11.1
Mechanical Data
11.2
Tape and Reel Information
パッケージ・オプション
メカニカル・データ(パッケージ|ピン)
RGE|24
MPQF124G
サーマルパッド・メカニカル・データ
RGE|24
QFND008AA
発注情報
slvsbb2f_oa
slvsbb2f_pm
1
Features
Qualified for automotive applications
AEC-Q100 test guidance with the following results:
Device temperature grade 2: –40°C to 105°C ambient operating temperature range
Electrical characteristics tested over –40°C to 125°C junction temperature range
Device HBM ESD classification level H1C
Device CDM ESD classification level C4B
Dual adjustable output voltages up to 15V and down to –15V
2A typical switch-current limit for boost and inverter main switches
High conversion efficiency
Up to 91% at positive output rail
Up to 85% at negative output rail
Power-save mode at low load
Independent enable inputs for power-up and power-down Sequencing
Control output for external PFET to support complete supply Disconnect When Shut Down
2.7V to 5.5V input-voltage range
Minimum 1.25MHz fixed-frequency PWM operation
Thermal shutdown
Overvoltage protection on both outputs
0.2µA typical shutdown current
Small 4mm × 4mm QFN-24 package (RGE) with wettable flanks