ZHCSHS6E November   2017  – November 2021 TPS62088 , TPS62088A , TPS62089A

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 Pulse Width Modulation (PWM) Operation
      3. 8.3.3 100% Duty Cycle Low Dropout Operation
      4. 8.3.4 Soft Start
      5. 8.3.5 Switch Current Limit and HICCUP Short-Circuit Protection
      6. 8.3.6 Undervoltage Lockout
      7. 8.3.7 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Enable and Disable
      2. 8.4.2 Power Good
  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 Custom Design With WEBENCH® Tools
        2. 9.2.2.2 Setting The Output Voltage
        3. 9.2.2.3 Feedforward Capacitor
        4. 9.2.2.4 Output Filter Design
        5. 9.2.2.5 Inductor Selection
        6. 9.2.2.6 Capacitor Selection
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
      1. 11.2.1 Thermal Considerations
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 第三方产品免责声明
      2. 12.1.2 Development Support
        1. 12.1.2.1 Custom Design With WEBENCH® Tools
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 接收文档更新通知
    4. 12.4 支持资源
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 术语表
  13. 13Mechanical, Packaging, and Orderable Information

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • YWC|6
  • YFP|6
散热焊盘机械数据 (封装 | 引脚)
订购信息

7.5 Electrical Characteristics

TJ = –40°C to 125°C, and VIN = 2.4 V to 5.5 V. Typical values are at TJ = 25°C and VIN = 5 V , unless otherwise noted.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SUPPLY
IQ Quiescent current EN = HIGH, no load, device not switching 4 10 µA
IQ Quiescent current EN = HIGH, no load, TPS62088A and TPS62089A 8 mA
ISD Shutdown current EN = LOW, TJ = –40℃ to 85℃ 0.05 0.5 µA
VUVLO Undervoltage lockout threshold VIN falling 2.1 2.2 2.3 V
Undervoltage lockout hysteresis VIN rising 160 mV
TJSD Thermal shutdown threshold TJ rising 150 °C
Thermal shutdown hysteresis TJ falling 20 °C
LOGIC INTERFACE EN
VIH High-level input threshold voltage 1.0 V
VIL Low-level input threshold voltage 0.4 V
IEN,LKG Input leakage current into EN pin 0.01 0.1 µA
SOFT START, POWER GOOD
tSS Soft-start time Time from EN high to 95% of VOUT nominal 1.25 ms
VPG Power-good lower threshold VPG rising, VFB referenced to VFB nominal 94% 96% 98%
VPG falling, VFB referenced to VFB nominal 90% 92% 94%
Power-good upper threshold VPG rising, VFB referenced to VFB nominal 103% 105% 107%
VPG falling, VFB referenced to VFB nominal 108% 110% 112%
VPG,OL Low-level output voltage Isink = 1 mA 0.4 V
IPG,LKG Input leakage current into PG pin VPG = 5.0 V 0.01 0.1 µA
OUTPUT
VOUT Output voltage accuracy TPS6208812, PWM mode 1.188 1.2 1.212 V
TPS6208818, PWM mode 1.782 1.8 1.818
TPS6208833, PWM mode 3.267 3.3 3.333
VFB Feedback regulation voltage PWM mode 594 600 606 mV
IFB,LKG Feedback input leakage current TPS62088, VFB = 0.6 V 0.01 0.05 µA
RFB Internal resistor divider connected to FB
pin		 TPS6208812, TPS6208818, TPS6208833 7.5 MΩ
IDIS Output discharge current VSW = 0.4V; EN = LOW 75 400 mA
POWER SWITCH
RDS(on) High-side FET on-resistance 26 mΩ
Low-side FET on-resistance 26 mΩ
ILIM High-side FET switch current limit TPS62089A 2.7 3.3 3.9 A
ILIM High-side FET switch current limit TPS62088 and TPS62088A 3.6 4.3 5.0 A
ILIM Low-side FET switch negative current limit TPS62088A and TPS62089A -1.6 A
fSW PWM switching frequency IOUT = 1 A, VOUT = 1.8 V 4 MHz