SBVS338H March   2020  – July 2024 TPS7A20

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 Switching Characteristics
    7. 5.7 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 Low Output Noise
      2. 6.3.2 Smart Enable
      3. 6.3.3 Dropout Voltage
      4. 6.3.4 Foldback Current Limit
      5. 6.3.5 Undervoltage Lockout (UVLO)
      6. 6.3.6 Thermal Shutdown
      7. 6.3.7 Active Discharge (P Version Only)
    4. 6.4 Device Functional Modes
      1. 6.4.1 Device Functional Mode Comparison
      2. 6.4.2 Normal Operation
      3. 6.4.3 Dropout Operation
      4. 6.4.4 Disabled
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Recommended Capacitor Types
      2. 7.1.2 Input and Output Capacitor Requirements
      3. 7.1.3 Load Transient Response
      4. 7.1.4 Undervoltage Lockout (UVLO) Operation
      5. 7.1.5 Power Dissipation (PD)
        1. 7.1.5.1 Estimating Junction Temperature
        2. 7.1.5.2 Recommended Area for Continuous Operation
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Examples
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Device Nomenclature
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information
    1. 10.1 Mechanical Data

4 Pin Configuration and Functions

TPS7A20 YCJ and YCK Packages,4-Pin DSBGA(Top View)Figure 4-1 YCJ and YCK Packages,
4-Pin DSBGA(Top View)
TPS7A20 YCJ and YCK Packages,4-Pin DSBGA(Bottom View)Figure 4-2 YCJ and YCK Packages,
4-Pin DSBGA(Bottom View)
Pin Functions: DSBGA
PINI/ODESCRIPTION
NO.NAME
A1INIInput voltage supply. For best transient response and to minimize input impedance, use the nominal value or larger capacitor from IN to ground as listed in the Recommended Operating Conditions table. Place the input capacitor as close to the IN and GND pins of the device as possible.
A2OUTORegulated output voltage. A low equivalent series resistance (ESR) capacitor is required from OUT to ground for stability. For best transient response, use the nominal recommended value or larger capacitor listed in the Recommended Operating Conditions table. Place the output capacitor as close to the OUT and GND pins of the device as possible.
B1ENIEnable input. A low voltage (< VEN(LOW)) on this input turns the regulator off and discharges the output pin to GND. A high voltage (> VEN(HI)) on this pin enables the regulator output. This pin has an internal 500kΩ pulldown resistor to hold the regulator off by default. When VEN > VEN(HI), the 500kΩ pulldown is disconnected to reduce input current.
B2GND—Common ground.
TPS7A20 DQN Package,4-Pin X2SON (Top View)Figure 4-3 DQN Package,4-Pin X2SON (Top View)
TPS7A20 DBV Package,5-Pin SOT-23(Top View)Figure 4-4 DBV Package,5-Pin SOT-23(Top View)
Pin Functions: X2SON, SOT-23
PINI/ODESCRIPTION
NAMEX2SONSOT-23
IN41IInput voltage supply. For best transient response and to minimize input impedance, use the nominal value or larger capacitor from IN to ground as listed in the Recommended Operating Conditions table. Place the input capacitor as close to the IN and GND pins of the device as possible.
OUT15ORegulated output voltage. A low equivalent series resistance (ESR) capacitor is required from OUT to ground for stability. For best transient response, use the nominal recommended value or larger capacitor listed in the Recommended Operating Conditions table. Place the output capacitor as close to the OUT and GND pins of the device as possible. An internal 150Ω (typical) pulldown resistor prevents a charge from remaining on VOUT when the regulator is in shutdown mode (VEN< VEN(LOW)).
EN33IEnable input. A low voltage (< VEN(LOW)) on this pin turns the regulator off and discharges the output pin to GND. A high voltage (> VEN(HI)) on this pin enables the regulator output. This pin has an internal 500kΩ pulldown resistor to hold the regulator off by default. When VEN > VEN(HI), the 500kΩ pulldown is disconnected to reduce input current.
GND22—Common ground.
N/C—4—No internal electrical connection.
Thermal Pad5——Thermal pad for the X2SON package. Connect this pad to GND or leave floating. Do not connect to any potential other than GND. Connect the thermal pad to a large-area ground plane for best thermal performance.