SBVS458A January   2025  – April 2025 TPS7B4261-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information 
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Tracker Output Voltage (VOUT)
        1. 6.3.1.1 Output Voltage Equal to Reference Voltage
        2. 6.3.1.2 Output Voltage Less Than the Reference Voltage
      2. 6.3.2 Reverse Current Protection
      3. 6.3.3 Power Good
      4. 6.3.4 Undervoltage Lockout
      5. 6.3.5 Thermal Protection
      6. 6.3.6 Current Limit
      7. 6.3.7 Output Short to Battery
    4. 6.4 Device Functional Modes
      1. 6.4.1 Normal Operation
      2. 6.4.2 Dropout Operation
      3. 6.4.3 Operation With VIN < 3.3V
      4. 6.4.4 Disable With ADJ and EN Controls
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Dropout Voltage
      2. 7.1.2 Reverse Current
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Input and Output Capacitor Selection
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
        1. 7.4.1.1 Package Mounting
        2. 7.4.1.2 Board Layout Recommendations to Improve PSRR and Noise Performance
        3. 7.4.1.3 Power Dissipation and Thermal Considerations
        4. 7.4.1.4 Thermal Performance Versus Copper Area
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Device Nomenclature
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information
    1. 10.1 Mechanical Data

4 Pin Configuration and Functions

Figure 4-1 DDA Package, 8-Pin HSOIC (Top View)
Table 4-1 Pin Functions
PIN TYPE DESCRIPTION
NAME DDA
ADJ 5 I

Adjustable input pin. Connect the external reference voltage to this pin, either directly or with a voltage divider for lower output voltages. This pin connects to the inverting input of the error amplifier internally. To compensate for line influences, place a 0.1µF capacitor close to this pin.
DNC 2 — Do not connect a voltage source to this pin. Leave this pin floating or connect to GND to improve thermal performance.
EN 7 I Enable pin. A low signal below VIL disables the device, and a high signal above VIH enables the device. Do not leave this pin floating.
GND 3, 6 G GND pin. Connect this pin to a low impedance path to ground.
IN 8 I Input power-supply voltage pin. For best transient response and to minimize input impedance, use the recommended value or larger ceramic capacitor from IN to GND. See the Recommended Operating Conditions table. Place the input capacitor as close to the input pin of the device as possible to compensate for line influences. See the Input and Output Capacitor Selection section for more details.
OUT 1 O Regulated output voltage pin. A capacitor is required from OUT to GND for stability. Select a ceramic capacitor within the range of COUT values provided in the Recommended Operating Conditions table. Place this capacitor as close to output of the device as possible. See the Input and Output Capacitor Selection section for more details.
PG 4 O Active-high, open-drain based power-good pin. Connect this pin to a positive voltage with a pullup resistor. After the device start-up sequence is completed, the voltage level on this pin helps assess if VOUT is abnormal or within the expected range. A logic low level indicates that VOUT has either fallen below or has exceeded the nominal value by the under- or overvoltage threshold, respectively. This feature helps identify possible fault conditions on the tracker output. VOUT is the tracker output voltage. See the Power Good section for more details.
Thermal Pad — Thermal pad. Connect the pad to GND for best possible thermal performance.