ZHCSPA2A July   2023  – December 2023 TPSM828301 , TPSM828302 , TPSM828303

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Device Options
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information Module
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Pulse Width Modulation (PWM) Operation
      2. 7.3.2 Power Save Mode (PSM) Operation
      3. 7.3.3 Start-Up and Soft Start
      4. 7.3.4 Switch Cycle-by-Cycle Current Limit
      5. 7.3.5 Undervoltage Lockout
      6. 7.3.6 Thermal Shutdown
      7. 7.3.7 Optimized EMI Performance
    4. 7.4 Device Functional Modes
      1. 7.4.1 Enable, Disable, and Output Discharge
      2. 7.4.2 Minimum Duty Cycle and 100% Mode Operation
      3. 7.4.3 Power Good
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Setting The Output Voltage
        2. 8.2.2.2 Input Capacitor Selection
        3. 8.2.2.3 Output Capacitor Selection
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
        1. 8.4.2.1 Thermal Considerations
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 第三方产品免责声明
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 支持资源
    4. 9.4 Trademarks
    5. 9.5 静电放电警告
    6. 9.6 术语表
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

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机械数据 (封装 | 引脚)
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订购信息

5 Pin Configuration and Functions

GUID-20220314-SS0I-VTVX-TFL0-SZMGPWWXLPVH-low.svg Figure 5-1 RDS Package, 9-Pin QFN Top View
Table 5-1 Pin Functions RDS Package
PIN TYPE DESCRIPTION
NAME NO.
VIN 1

PWR

 Input voltage pin. Connect the input capacitor as close as possible between VIN and GND.
GND 2 PWR Ground pin
MODE 3 I The device runs in PSM/PWM mode when this pin pulls low and in forced-PWM mode when pulled high. This action can also be done when the device is in-operation. Do not leave this pin floating.
FB 4 I Feedback pin. Connect the resistive output voltage divider to this pin.

VOS

 5

I

 Output voltage sense pin. Connect this pin directly after the inductor.
VOUT 6

PWR

 Output voltage pin
PG

7

O

 Power good open-drain output pin. The pullup resistor can be connected to voltages up to 5.5 V. If unused, leave this pin floating.

SW

8

PWR

 Switch pin of the converter, which is connected to the internal power MOSFET and the inductor. Avoid connecting this pin to larger traces as this can increase EMI. this pin can stay unconnected or be soldered to a small pad for thermal improvement.
EN 9 I Device enable pin. To enable the device, pull this pin high. Pulling this pin low disables the device. Do not leave this pin unconnected.