ZHCSMK6B September   2021  – November 2022 TPSM82864A , TPSM82866A

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Device Options
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Power Save Mode
      2. 8.3.2 Forced PWM Mode
      3. 8.3.3 Optimized Transient Performance from PWM to PSM Operation
      4. 8.3.4 Low Dropout Operation (100% Duty Cycle)
      5. 8.3.5 Soft Start
      6. 8.3.6 Switch Current Limit and HICCUP Short-Circuit Protection
      7. 8.3.7 Undervoltage Lockout
      8. 8.3.8 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Enable and Disable (EN)
      2. 8.4.2 Output Discharge
      3. 8.4.3 Power Good (PG)
      4. 8.4.4 Output Voltage and Mode Selection (VSET/MODE)
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Setting The Output Voltage
        2. 9.2.2.2 Input and Output Capacitor Selection
      3. 9.2.3 Application Curves
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
        1. 9.4.2.1 Thermal Considerations
  10. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 第三方产品免责声明
    2. 10.2 Documentation Support
      1. 10.2.1 Related Documentation
    3. 10.3 接收文档更新通知
    4. 10.4 支持资源
    5. 10.5 Trademarks
    6. 10.6 Electrostatic Discharge Caution
    7. 10.7 术语表
  11. 11Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

9.2.3 Application Curves

VIN = 5.0 V, VOUT = 1.2 V, TA = 25°C, BOM = Table 9-2, unless otherwise noted. Solid lines show the FPWM mode and dashed lines show PSM.
VIN = 5.0 V, VOUT = 1.2 V, TA = 25°C, BOM = Table 9-2, unless otherwise noted. Solid lines show the FPWM mode and dashed lines show PSM.
TPSM8286xAA0SRDJPSM and FPWM
Figure 9-2 Efficiency VIN = 5.0 V and TA = 25°C. VIN = 5.0 V, VOUT = 1.2 V, TA = 25°C, BOM = Table 9-2, unless otherwise noted. Solid lines show the FPWM mode and dashed lines show PSM.
TPSM8286xAA0SRDJPSM and FPWM
Figure 9-4 Efficiency VIN = 3.3 V and TA = 25°C
TPSM8286xAA0SRDJPSM and FPWM
Figure 9-6 Efficiency VIN = 2.8 V and TA = 25°C
TPSM8286xAA0HRDMPSM and FPWM
Figure 9-8 Efficiency VIN = 5.0 V and TA = 25°C
TPSM8286xAA0HRDMPSM and FPWM
Figure 9-10 Efficiency VIN = 3.3 V and TA = 25°C
TPSM8286xAA0HRDMPSM and FPWM
Figure 9-12 Efficiency VIN = 2.8 V and TA = 25°C
TA = 25°C
Figure 9-14 Load Regulation VIN = 5.0 V and PSM
TA = 25°C
Figure 9-16 Load Regulation VIN = 3.3 V and PSM
TA = 25°C
Figure 9-18 Load Regulation VIN = 2.8 V and PSM
PSM and FPWMTA = 25°C
Figure 9-20 Switching Frequency VIN = 5.0 V
VIN = 5.0 VVOUT = 1.2 VTA = 25°C
Figure 9-22 FPWM Operation IOUT = 6 A
VIN = 5.0 VVOUT = 1.2 VTA = 25°C
Figure 9-24 Load Transient FPWM IOUT = 0 A → 6 A
RVSET = 56.2 kΩIOUT = 6.0 A
Figure 9-26 Start-Up into Full Load
VIN = 5.0 VVOUT = 1.2 VTA = 25°C
Figure 9-28 Load Sweep IOUT = 20 mA → 6 A
RθJA = 25.4°C/WTJmax = 125°C
Figure 9-30 Safe Operating Area VIN = 5.0-V TPSM82866AA0HRDMR
RθJA = 25.4°C/WTJmax = 125°C
Figure 9-32 Safe Operating Area VIN = 5.0-V TPSM82866AA0SRDJR
TPSM8286xAA0SRDJFPWM
Figure 9-3 Efficiency VIN = 5.0 V and TA = 85°C
TPSM8286xAA0SRDJ

FPWM

Figure 9-5 Efficiency VIN = 3.3 V and TA = 85°C
TPSM8286xAA0SRDJ

FPWM

Figure 9-7 Efficiency VIN = 2.8 V and TA = 85°C
TPSM8286xAA0HRDMFPWM
Figure 9-9 Efficiency VIN = 5.0 V and TA = 85°C
TPSM8286xAA0HRDM

FPWM

Figure 9-11 Efficiency VIN = 3.3 V and TA = 85°C
TPSM8286xAA0HRDM

FPWM

Figure 9-13 Efficiency VIN = 2.8 V and TA = 85°C
TA = 25°C
Figure 9-15 Load Regulation VIN = 5.0 V and FPWM
TA = 25°C
Figure 9-17 Load Regulation VIN = 3.3 V and FPWM
TA = 25°C
Figure 9-19 Load Regulation VIN = 2.8 V and FPWM
PSM and FPWMTA = 25°C
Figure 9-21 Switching Frequency VIN = 3.3 V
VIN = 5.0 VVOUT = 1.2 VTA = 25°C
Figure 9-23 PSM Operation IOUT = 0.1 A
VIN = 5.0 VVOUT = 1.2 VTA = 25°C
Figure 9-25 Load Transient PSM IOUT = 0 A → 6 A
RVSET = 56.2 kΩIOUT = 0 A
Figure 9-27 Start-Up with No Load
RLOAD = 100 mΩ (during overload)
Figure 9-29 HICCUP Short-Circuit Protection
RθJA = 25.4°C/WTJmax = 125°C
Figure 9-31 Safe Operating Area VIN = 3.3-V TPSM82866AA0HRDMR
RθJA = 25.4°C/WTJmax = 125°C
Figure 9-33 Safe Operating Area VIN = 3.3-V TPSM82866AA0SRDJR