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TPSM82851x 2.7-V to 6-V Input, 0.5-A/1-A/2-A Step-Down Power Module With Integrated Inductor
SLUSF35
November 2023
TPSM828510
,
TPSM828511
,
TPSM828512
PRODUCTION DATA
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TPSM82851x 2.7-V to 6-V Input, 0.5-A/1-A/2-A Step-Down Power Module With Integrated Inductor
1
1
Features
2
Applications
3
Description
4
Device Comparison Table
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
Typical Characteristics
7
Parameter Measurement Information
7.1
Schematic
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Precise Enable (EN)
8.3.2
MODE/SYNC
8.3.3
Undervoltage Lockout (UVLO)
8.3.4
Power-Good Output (PG)
8.3.5
Thermal Shutdown
8.4
Device Functional Modes
8.4.1
Pulse Width Modulation (PWM) Operation
8.4.2
Power Save Mode Operation (PFM/PWM)
8.4.3
100% Duty-Cycle Operation
8.4.4
Current Limit and Short-Circuit Protection
8.4.5
Output Discharge
8.4.6
Soft Start / Tracking (SS/TR)
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
Programming the Output Voltage
9.2.2.2
Feedforward Capacitor
9.2.2.3
Input Capacitor
9.2.2.4
Output Capacitor
9.2.2.5
Application Curves
9.3
System Examples
9.3.1
Voltage Tracking
9.3.2
Synchronizing to an External Clock
9.4
Power Supply Recommendations
9.5
Layout
9.5.1
Layout Guidelines
9.5.2
Layout Example
9.5.2.1
Thermal Consideration
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
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
RDY|9
MPQF702B
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slusf35_oa
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Data Sheet
TPSM82851x 2.7-V to 6-V Input, 0.5-A/1-A/2-A Step-Down Power Module With Integrated Inductor
1
Features
2.7-V to 6-V input voltage range
0.6-V to 5.5-V output voltage range
Family of 0.5-A, 1-A and 2-A devices
20-µA typical quiescent current
±1% feedback voltage accuracy (PWM operation)
2.25-MHz switching frequency (PWM operation)
1.8-MHz to 4-MHz external synchronization
Selectable forced PWM or PFM/PWM operation
Adjustable soft start-up to 10 ms or tracking
Precise ENABLE input allows
User-defined undervoltage lockout
Exact sequencing
100% duty cycle mode
Active output discharge
Power-good output with window comparator
–40°C to 125°C operating temperature range
2.7-mm × 3.0-mm QFN package with 0.5-mm pitch
