SLVSI31
April 2026
TPS61371
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics
5.6
I2C Timing Requirements
5.7
Typical Characteristics
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagram
6.3
Feature Description
6.3.1
Undervoltage Lockout
6.3.2
Enable and Disable
6.3.3
Output Voltage Setting
6.3.4
Reference Voltage Slew Rate
6.3.5
Error Amplifier
6.3.6
Bootstrap Voltage (BST)
6.3.7
Load Disconnect
6.3.8
Output Discharge
6.3.9
Overvoltage Protection
6.3.10
Thermal Shutdown
6.3.11
Start-Up
6.3.12
Short Protection
6.4
Device Functional Modes
6.4.1
Operation
6.4.2
Auto PFM Mode
6.4.3
Forced PWM Mode
6.4.4
Mode Selectable
6.5
Programming
6.5.1
Serial Interface Description
6.5.2
Standard-, Fast-, and Fast-Mode Plus Protocol
6.5.3
I2C Update Sequence
6.5.4
I2C Target Address
6.5.4.1
I2C Target Address Description
7
Register Map
7.1
Register Description
7.1.1
Register Map
7.1.2
Register CONTROL (Register address: 0x01; Default: 0x01)
7.1.3
Register VOUT (Register address: 0x02; Default: 0x36)
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Setting the Output Voltage
8.2.2.2
Selecting the Inductor
8.2.2.3
Selecting the Output Capacitors
8.2.2.4
Selecting the Input Capacitors
8.2.2.5
Loop Stability and Compensation
8.2.2.5.1
Small Signal Model
8.2.2.6
Loop Compensation Design Steps
8.2.2.7
Selecting the Bootstrap Capacitor
8.2.3
Application Curves
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
8.4.2.1
Thermal Considerations
9
Device and Documentation Support
9.1
Device Support
9.1.1
Third-Party Products Disclaimer
9.2
Receiving Notification of Documentation Updates
9.3
Support Resources
9.4
Trademarks
9.5
Electrostatic Discharge Caution
9.6
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
VAR|14
MPQF832
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slvsi31_oa
slvsi31_pm
1
Features
Input voltage range: 2.7V to 5.5V
Output voltage range: up to 16V
I
2
C programmable V
OUT
through FB V
ref
On-resistance:
Low-side FET - 35mΩ
High-side + disconnect FET - 106mΩ
Switch peak current limit: 3.8A typical
Quiescent current from V
IN
: 125μA
Quiescent current from V
OUT
: 10μA
Shutdown current from V
IN
: 2.5μA
Switching frequency: 1.5MHz
Soft-start time: 1.5ms
Auto PFM and forced PWM selectable
Load disconnect during shutdown
Output discharge selectable
External loop compensation
Output short and overvoltage protection with latch type
2.5mm × 2.5mm × 0.8mm (max)
HotRod™
lite WQFN package