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TPS7B4260-Q1 Automotive, 300mA, 40V, Voltage-Tracking LDO With 6mV Tracking Tolerance
SBVS444A
January 2025 – March 2025
TPS7B4260-Q1
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TPS7B4260-Q1 Automotive, 300mA, 40V, Voltage-Tracking LDO With 6mV Tracking Tolerance
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
Typical Characteristics
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagram
6.3
Feature Description
6.3.1
Tracker Output Voltage (VOUT)
6.3.1.1
Output Voltage Equal to Reference Voltage
6.3.1.2
Output Voltage Less Than the Reference Voltage
6.3.1.3
Output Voltage Larger than the Reference Voltage
6.3.2
Reverse Current Protection
6.3.3
Undervoltage Lockout
6.3.4
Thermal Protection
6.3.5
Current Limit
6.3.6
Output Short to Battery
6.3.7
Tracking Regulator With an Enable Circuit
6.4
Device Functional Modes
6.4.1
Normal Operation
6.4.2
Dropout Operation
6.4.3
Operation With VIN < 3.3V
6.4.4
Disable With ADJ/EN Control
7
Application and Implementation
7.1
Application Information
7.1.1
Dropout Voltage
7.1.2
Reverse Current
7.2
Typical Application
7.2.1
Design Requirements
7.2.2
Detailed Design Procedure
7.2.2.1
Input and Output Capacitor Selection
7.2.2.2
Feedback Resistor Selection
7.2.2.3
Feedforward Capacitor
7.2.3
Application Curves
7.3
Power Supply Recommendations
7.4
Layout
7.4.1
Layout Guidelines
7.4.1.1
Package Mounting
7.4.1.2
Board Layout Recommendations to Improve PSRR and Noise Performance
7.4.1.3
Power Dissipation and Thermal Considerations
7.4.1.4
Thermal Performance Versus Copper Area
7.4.2
Layout Example
8
Device and Documentation Support
8.1
Device Support
8.1.1
Device Nomenclature
8.2
Documentation Support
8.2.1
Related Documentation
8.3
Receiving Notification of Documentation Updates
8.4
Support Resources
8.5
Trademarks
8.6
Electrostatic Discharge Caution
8.7
Glossary
9
Revision History
10
Mechanical, Packaging, and Orderable Information
10.1
Mechanical Data
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
DDA|8
MPDS092F
Thermal pad, mechanical data (Package|Pins)
Orderable Information
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Data Sheet
TPS7B4260-Q1 Automotive, 300mA, 40V, Voltage-Tracking LDO With 6mV Tracking Tolerance
1
Features
AEC-Q100 qualified for automotive applications:
Temperature grade 1: –40°C to +125°C, T
A
Junction temperature: –40°C to +150°C, T
J
Wide input voltage range:
Absolute maximum range: –40V to +45V
Operating range: 3.3V to 40V
Output voltage:
Wide operating range: 2V to 40V
Output voltage flexibility: Scale V
OUT
to values higher or lower than the reference using external resistors in a voltage divider configuration
Maximum output current: 300mA
Very tight output-tracking tolerance: 6mV (max)
Low dropout voltage: 330mV at 200mA
Combined enable and reference functionalities
Low quiescent current at light load: 60μA
Stable over a wide range of ceramic output capacitor values:
C
OUT
range: 1μF to 100μF
ESR range: 1mΩ to 2Ω
Integrated protection features:
Reverse current protection
Reverse polarity protection
Overtemperature protection
Protection against output short-circuit to ground and supply
Available in the HSOIC (DDA) low thermal resistance (R
θJA
= 48°C/W) 8-pin package
2
Applications
Powertrain pressure sensors
Powertrain temperature sensors
Powertrain exhaust sensors
Powertrain fluid concentration sensors
Body control modules (BCM)
Zone control modules
HVAC control modules
