SLVSEI1C
June 2019 – October 2020
TPS62864
,
TPS62866
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Device Options
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
I2C InterfaceTiming Characteristics
7.7
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Power Save Mode
8.3.2
Forced PWM Mode
8.3.3
Start-up
8.3.4
Switch Current Limit and HICCUP Short-Circuit Protection
8.3.5
Undervoltage Lockout (UVLO)
8.3.6
Thermal Warning and Shutdown
8.4
Device Functional Modes
8.4.1
Enable and Disable (EN)
8.4.2
Output Discharge
8.4.3
Start-up Output Voltage and I2C Slave Address Selection (VSET)
8.4.4
Select Output Voltage Registers (VID)
8.4.5
Power Good (PG)
8.5
Programming
8.5.1
Serial Interface Description
8.5.2
Standard-, Fast-, and Fast-Mode Plus Protocol
8.5.3
HS-Mode Protocol
8.5.4
I2C Update Sequence
8.5.5
I2C Register Reset
8.6
Register Map
8.6.1
Slave Address Byte
8.6.2
Register Address Byte
8.6.3
VOUT Register 1
8.6.4
VOUT Register 2
8.6.5
CONTROL Register
8.6.6
STATUS Register
9
Application and Implementation
9.1
Application Information
9.2
Typical Applications
9.2.1
6-A Output Current Application
9.2.1.1
Design Requirements
9.2.1.2
Detailed Design Procedure
9.2.1.2.1
Custom Design With WEBENCH® Tools
9.2.1.2.2
Setting The Output Voltage
9.2.1.2.3
Output Filter Design
9.2.1.2.4
Inductor Selection
9.2.1.2.5
Capacitor Selection
9.2.1.3
Application Curves
9.2.2
Smaller Application Solution
9.2.2.1
Design Requirements
9.2.2.2
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
11.3
Thermal Considerations
12
Device and Documentation Support
12.1
Device Support
12.1.1
Third-Party Products Disclaimer
12.2
Documentation Support
12.2.1
Related Documentation
12.3
Support Resources
12.4
Receiving Notification of Documentation Updates
12.5
Trademarks
12.6
Electrostatic Discharge Caution
12.7
Glossary
13
Mechanical, Packaging, and Orderable Information
1
Features
7-mΩ and 6.5-mΩ internal power MOSFETs
>90% efficiency (0.9-V output)
DCS-control topology for fast transient response
1% output voltage accuracy
4-µA operating quiescent current
2.4-V to 5.5-V input voltage range
2.4-MHz switching frequency
Selection by external resistor
Start-up output voltage
I
2
C slave address
Selection by I
2
C interface
Power save mode or forced PWM mode
Output discharge
Hiccup or latching short-circuit protection
Output voltage ramp speed
VID pin for dynamic voltage scaling (DVS)
Thermal pre-warning and thermal shutdown
Power good indicator pin option
I
2
C-compatible interface up to 3.4 Mbps
Available in 1.05-mm x 1.78-mm x 0.5-mm 15-pin WCSP package with 0.35-mm pitch
Create a custom design using the TPS62866 with the
WEBENCH® Power Designer