SLVSAO4C
December 2010 – June 2020
TPS61240-Q1
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Simplified Schematic
4
Revision History
5
Pin Configuration and Functions
Pin 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
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Current Limit Operation
7.3.2
Undervoltage Lockout
7.3.3
Input Overvoltage Protection
7.3.4
Enable
7.3.5
Soft Start
7.3.6
Load Disconnect
7.3.7
Thermal 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
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Programming the Output Voltage
8.2.2.2
Inductor Selection
8.2.2.3
Input Capacitor
8.2.2.4
Output Capacitor
8.2.2.5
Checking Loop Stability
8.2.3
Application Curves
8.3
System Example
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Documentation Support
11.1.1
Related Documentation
11.2
Receiving Notification of Documentation Updates
11.3
Community Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DRV|6
MPDS216E
Thermal pad, mechanical data (Package|Pins)
DRV|6
QFND087M
Orderable Information
slvsao4c_oa
slvsao4c_pm
1
Features
Qualified for automotive applications
AEC-Q100 qualified with the following results:
Device temperature grade
TPS61240IDRVRQ1: grade 3, –40°C to +85°C ambient operating temperature
TPS61240TDRVRQ1: grade 2, –40°C to +105°C ambient operating temperature
Device HBM ESD classification level 2
Device CDM ESD classification level C6
Functional Safety-Capable
Documentation available to aid functional safety system design
Efficiency > 90% at nominal operating conditions
Total DC Output Voltage Accuracy 5 V ±2%
Typical 30-μA quiescent current
Best in class
line and load transient
Wide V
IN
range from 2.3 V to 5.5 V
Output current up to 450 mA
Automatic PFM/PWM mode transition
Low ripple power save mode for improved efficiency at light loads
Internal soft start, 250 μs typical start-up time
3.5-MHz typical operating frequency
Load disconnect during shutdown
Current overload and thermal shutdown protection
Only three surface-mount external components required (one MLCC inductor, two ceramic capacitors)
Total solution size < 13 mm
2
Available in a 2 mm × 2 mm WSON package