ZHCSQI6C May   2022  – October 2023 TPS62870-Q1 , TPS62871-Q1 , TPS62872-Q1 , TPS62873-Q1

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 说明（续）
  7. 6 Device Options
  8. 7 Pin Configuration and Functions
  9. 8 Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 ESD Ratings
    3. 8.3 Recommended Operating Conditions
    4. 8.4 Thermal Information
    5. 8.5 Electrical Characteristics
    6. 8.6 I2C Interface Timing Characteristics
    7. 8.7 Timing Requirements
    8. 8.8 Typical Characteristics
  10. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1  Fixed-Frequency DCS Control Topology
      2. 9.3.2  Forced PWM and Power Save Modes
      3. 9.3.3  Precise Enable
      4. 9.3.4  Start-Up
      5. 9.3.5  Switching Frequency Selection
      6. 9.3.6  Output Voltage Setting
        1. 9.3.6.1 Output Voltage Range
        2. 9.3.6.2 Output Voltage Setpoint
        3. 9.3.6.3 Non-Default Output Voltage Setpoint
        4. 9.3.6.4 Dynamic Voltage Scaling
      7. 9.3.7  Compensation (COMP)
      8. 9.3.8  Mode Selection and Clock Synchronization (MODE/SYNC)
      9. 9.3.9  Spread Spectrum Clocking (SSC)
      10. 9.3.10 Output Discharge
      11. 9.3.11 Undervoltage Lockout (UVLO)
      12. 9.3.12 Overvoltage Lockout (OVLO)
      13. 9.3.13 Overcurrent Protection
        1. 9.3.13.1 Cycle-by-Cycle Current Limiting
        2. 9.3.13.2 Hiccup Mode
        3. 9.3.13.3 Current Limit Mode
      14. 9.3.14 Power Good (PG)
        1. 9.3.14.1 Standalone or Primary Device Behavior
        2. 9.3.14.2 Secondary Device Behavior
      15. 9.3.15 Remote Sense
      16. 9.3.16 Thermal Warning and Shutdown
      17. 9.3.17 Stacked Operation
    4. 9.4 Device Functional Modes
      1. 9.4.1 Power-On Reset
      2. 9.4.2 Undervoltage Lockout
      3. 9.4.3 Standby
      4. 9.4.4 On
    5. 9.5 Programming
      1. 9.5.1 Serial Interface Description
      2. 9.5.2 Standard, Fast, Fast Mode Plus Protocol
      3. 9.5.3 I2C Update Sequence
      4. 9.5.4 I2C Register Reset
    6. 9.6 Register Map
  11. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Selecting the Inductor
        2. 10.2.2.2 Selecting the Input Capacitors
        3. 10.2.2.3 Selecting the Compensation Resistor
        4. 10.2.2.4 Selecting the Output Capacitors
        5. 10.2.2.5 Selecting the Compensation Capacitor, CC
        6. 10.2.2.6 Selecting the Compensation Capacitor, CC2
      3. 10.2.3 Application Curves
    3. 10.3 Best Design Practices
    4. 10.4 Power Supply Recommendations
    5. 10.5 Layout
      1. 10.5.1 Layout Guidelines
      2. 10.5.2 Layout Example
  12. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 第三方产品免责声明
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 接收文档更新通知
    4. 11.4 支持资源
    5. 11.5 Trademarks
    6. 11.6 静电放电警告
    7. 11.7 术语表
  13. 12Mechanical, Packaging, and Orderable Information

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订购信息

6 Device Options

Table 6-1 Devices With I2C Interface
Device NumberOutput CurrentStart-Up Voltage, I2C Address(1)(2)VSEL SettingsSpread Spectrum ClockingSoft-Start Time
TPS62870QWRXSRQ16 A0.850 V, 0x406.2 kΩ to GNDDefault setting = offDefault setting = 1 ms
TPS62871QWRXSRQ19 A0.750 V, 0x41Short to GND
TPS62872QWRXSRQ112 A0.875 V, 0x42Short to VIN
TPS62873QWRXSRQ115 A1.000 V, 0x4347 kΩ to VIN
TPS62870Y1QWRXSRQ16 A0.800 V, 0x406.2 kΩ to GNDDefault setting = offDefault setting = 1 ms
TPS62871Y1QWRXSRQ19 A0.750 V, 0x41Short to GND
TPS62872Y1QWRXSRQ112 A0.875 V, 0x42Short to VIN
TPS62873Y1QWRXSRQ115 A0.800 V, 0x4347 kΩ to VIN
TPS62870Y0QWRXSRQ1 6 A0.500 V, 0x406.2 kΩ to GNDDefault setting = offDefault setting = 1 ms
0.750 V, 0x41Short to GND
0.875 V, 0x42Short to VIN
1.050 V, 0x4347 kΩ to VIN
TPS62870Y2QWRXSRQ1 6 A1.800 V, 0x306.2kΩ to GNDDefault setting = offDefault setting = 1 ms
1.500 V, 0x31Short to GND
TPS62872Y2QWRXSRQ1

12 A

1.750 V, 0x32Short to VIN
3.300 V, 0x3347 kΩ to VIN
TPS62870Y3QWRXSRQ16 A0.810 V, 0x406.2 kΩ to GNDDefault setting = offDefault setting = 1 ms
0.750 V, 0x41Short to GND
0.875 V, 0x42Short to VIN
1.000 V, 0x4347 kΩ to VIN

TPS62872Y4QWRXSRQ1

12 A

0.850 V, 0x406.2 kΩ to GNDDefault setting = offDefault setting = 1 ms
0.750 V, 0x41Short to GND
0.875 V, 0x42Short to VIN
0.850 V, 0x4347 kΩ to VIN
TPS62871Y5QWRXSRQ1

9 A

1.100 V, 0x10

6.2 kΩ to GNDDefault setting = offDefault setting = 1 ms
1.500 V, 0x11Short to GND
1.750 V, 0x12Short to VIN
3.300 V, 0x1347 kΩ to VIN
TPS62871Y6QWRXSRQ1

9 A

1.200 V, 0x206.2 kΩ to GNDDefault setting = offDefault setting = 1 ms
1.500 V, 0x21Short to GND
TPS62872Y6QWRXSRQ1 12 A1.750 V, 0x22Short to VIN
2.500 V, 0x2347 kΩ to VIN
(1) The I2C address is linked to the selected start-up voltage. The user cannot select the start-up voltage and I2C address independently.
(2) The user can use the VSEL pin to select which of the four start-up voltages the device uses. For more information, see Table 9-5 and Table 9-10.
Table 6-2 Devices Without I2C Interface
Device NumberOutput CurrentStart-Up Voltage(2)VSEL SettingsSpread Spectrum ClockingSoft-Start Time
TPS62870N0QWRXSRQ16 A0.500 V6.2 kΩ to GNDOn0.5 ms
TPS62871N0QWRXSRQ19 A0.750 VShort to GND
TPS62872N0QWRXSRQ112 A0.875 VShort to VIN
TPS62873N0QWRXSRQ115 A1.050 V47 kΩ to VIN
TPS62870N1QWRXSRQ16 A0.800 V6.2kΩ to GNDOn1 ms
TPS62871N1QWRXSRQ19 A0.750 VShort to GND
TPS62872N1QWRXSRQ112 A0.875 VShort to VIN
TPS62873N1QWRXSRQ115 A0.840 V47 kΩ to VIN
TPS62872N2QWRXSRQ112 A1.800 V6.2 kΩ to GNDOff
1.500 VShort to GND
1.750 VShort to VIN
3.300 V47kΩ to VIN
TPS62872N3QWRXSRQ1

12 A

1.000 V

6.2 kΩ to GNDOn

0.5 ms

0.750 V

Short to GND

0.875 V

Short to VIN

1.100 V

47kΩ to VIN
(1) The I2C address is linked to the selected start-up voltage. The user cannot select the start-up voltage and I2C address independently.
(2) The user can use the VSEL pin to select which of the four start-up voltages the device uses. For more information, see Table 9-5 and Table 9-10.

Unless otherwise noted, device variants without I2C operate with the same default settings as device variants with I2C.