SLVSHR7
August 2024
TPSM8287A12M
,
TPSM8287A15M
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Device Options
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
I2C Interface Timing Characteristics
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Fixed-Frequency DCS-Control Topology
7.3.2
Forced-PWM and Power Save Modes
7.3.3
Precise Enable
7.3.4
Start-Up
7.3.5
Switching Frequency Selection
7.3.6
Output Voltage Setting
7.3.6.1
Output Voltage Setpoint
7.3.6.2
Output Voltage Range
7.3.6.3
Non-Default Output Voltage Setpoint
7.3.6.4
Dynamic Voltage Scaling (DVS)
7.3.7
Compensation (COMP)
7.3.8
Mode Selection / Clock Synchronization (MODE/SYNC)
7.3.9
Spread Spectrum Clocking (SSC)
7.3.10
Output Discharge
7.3.11
Undervoltage Lockout (UVLO)
7.3.12
Overvoltage Lockout (OVLO)
7.3.13
Overcurrent Protection
7.3.13.1
Cycle-by-Cycle Current Limiting
7.3.13.2
Hiccup Mode
7.3.13.3
Current-Limit Mode
7.3.14
Power Good (PG)
7.3.14.1
Power-Good Standalone, Primary Device Behavior
7.3.14.2
Power-Good Secondary Device Behavior
7.3.15
Remote Sense
7.3.16
Thermal Warning and Shutdown
7.3.17
Stacked Operation
7.4
Device Functional Modes
7.4.1
Power-On Reset (POR)
7.4.2
Undervoltage Lockout
7.4.3
Standby
7.4.4
On
7.5
Programming
7.5.1
Serial Interface Description
7.5.2
Standard-, Fast-, Fast-Mode Plus Protocol
7.5.3
I2C Update Sequence
7.5.4
I2C Register Reset
8
Device Registers
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Selecting the Input Capacitors
9.2.2.2
Selecting the Target Loop Bandwidth
9.2.2.3
Selecting the Compensation Resistor
9.2.2.4
Selecting the Output Capacitors
9.2.2.5
Selecting the Compensation Capacitor, CComp1
9.2.2.6
Selecting the Compensation Capacitor, CComp2
9.2.3
Application Curves
9.3
Typical Application Using Four TPSM8287A1xM in Parallel Operation
9.3.1
Design Requirements
9.3.2
Detailed Design Procedure
9.3.2.1
Selecting the Input Capacitors
9.3.2.2
Selecting the Target Loop Bandwidth
9.3.2.3
Selecting the Compensation Resistor
9.3.2.4
Selecting the Output Capacitors
9.3.2.5
Selecting the Compensation Capacitor, CComp1
9.3.2.6
Selecting the Compensation Capacitor, CComp2
9.3.3
Application Curves
9.4
Power Supply Recommendations
9.5
Layout
9.5.1
Layout Guidelines
9.5.2
Layout Example
10
Device and Documentation Support
10.1
Device Support
10.1.1
Third-Party Products Disclaimer
10.2
Documentation Support
10.2.1
Related Documentation
10.3
Receiving Notification of Documentation Updates
10.4
Support Resources
10.5
Trademarks
10.6
Electrostatic Discharge Caution
10.7
Glossary
11
Revision History
12
Mechanical, Packaging, and Orderable Information
12.1
Tape and Reel Information
Package Options
Mechanical Data (Package|Pins)
RDW|39
MPQF792A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slvshr7_oa
1
Features
–55°C to 125°C operating temperature range
±1.0% output voltage accuracy
Differential remote sensing
Parallelable for multi-phase operation
Start-up output voltage selectable in 50mV steps from 0.40V to 3.35V through VSETx pins and I
2
C adjustable in 1.25mV steps
Five selectable I
2
C addresses through VSETx pins
Adjustable external compensation for wide output capacitor range and optimized transient response
Designed for low EMI requirements
No bond wire package
Internal input capacitors
Simplified layout through parallel input path
Optional synchronization to external clock or spread-spectrum operation
Power save mode or forced-PWM operation
Precise enable input threshold
Power-good output with window comparator
Active output discharge
Excellent thermal performance
4.5mm × 6.8mm QFN package with 0.5mm pitch
77mm
2
design size