ZHCS247C May   2011  – April 2018 TPS61260 , TPS61261

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 Handling Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 Schematic and List of Components
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagrams
    3. 8.3 Feature Description
      1. 8.3.1 Controller Circuit
      2. 8.3.2 Synchronous Boost Operation
      3. 8.3.3 Power Save Mode
      4. 8.3.4 Device Enable
      5. 8.3.5 Softstart and Short Circuit Protection
    4. 8.4 Device Functional Modes
      1. 8.4.1 Undervoltage Lockout
      2. 8.4.2 Output Overvoltage Protection
    5. 8.5 Programming
      1. 8.5.1 Programming the Output Voltage
      2. 8.5.2 Programming the Output Current
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 TPS61260 3.3-V Output Application
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Inductor Selection
          2. 9.2.1.2.2 Capacitor Selection
            1. 9.2.1.2.2.1 Input Capacitor
            2. 9.2.1.2.2.2 Output Capacitor
        3. 9.2.1.3 TPS61260 3.3-V Output Application Performance Plots
      2. 9.2.2 TPS61261 Application as LED Driver
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 TPS61261 Application as LED Driver Performance Plots
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Considerations
  12. 12器件和文档支持
    1. 12.1 器件支持
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 文档支持
      1. 12.2.1 相关文档
    3. 12.3 相关链接
    4. 12.4 商标
    5. 12.5 静电放电警告
    6. 12.6 术语表
  13. 13机械、封装和可订购信息

6.5 Electrical Characteristics

over recommended free-air temperature range and over recommended input voltage range (typical at an ambient temperature range of 25°C) (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DC/DC STAGE
VIN Input voltage range 0.8 4.0 V
VIN Minimum input voltage for startup -40°C < TJ < 105°C 1.2 V
VOUT TPS61260 output voltage range 1.8 4.0 V
VFB TPS61260 feedback voltage -40°C < TJ < 85°C 495 500 505 mV
VOUT TPS61261 output voltage 3.27 3.3 3.33 V
ILIM Average switch current limit 7 x IOUT mA
RDS(on) High side switch on resistance VIN = 1.2 V, VOUT = 3.3 V 1000 mΩ
RDS(on) Low side switch on resistance VIN = 1.2 V, VOUT = 3.3 V 250 mΩ
Output voltage line regulation PWM mode 0.5%
Output voltage load regulation PWM mode 0.5%
IOUT Average output current programming range 10 100 mA
Average output current RI = 10 kΩ, TA = 25 °C, VIN < VOUT 19 20 21 mA
Average output current RI = 10 kΩ, 0°C < TJ < 60°C, VIN < VOUT 18 20 22 mA
Average output current line regulation 0.5%
Average output current load regulation 0.5%
IQ Quiescent current VIN IO = 0 mA, VEN = VIN = 1.2 V,
VOUT = 3.3 V, Device not switching		 4 7 μA
VOUT 25 40 μA
TPS61261 FB pin input impedance VEN = HIGH 1 MΩ
ISD Shutdown current VEN = 0 V, VIN = 1.2 V 0.1 1.5 μA
VEN = 0 V, VIN = 1.2 V, TA = 25°C 0.1 0.3 μA
CONTROL STAGE
VUVLO Under voltage lockout threshold Falling VIN 0.6 0.7 0.8 V
VUVLO Under voltage lockout threshold hysteresis 200 mV
VIL Low level input threshold voltage (EN) VIN ≤ 1.8 V, -40°C < TJ < 85°C 0.2 × VIN V
VIL Low level input threshold voltage (EN) VIN > 1.8 V, -40°C < TJ < 85°C 0.36 V
VIH High level input threshold voltage (EN) VIN ≤ 1.5 V 0.8 × VIN V
VIH High level input threshold voltage (EN) VIN > 1.5 V 1.2 V
ILKG Input leakage current (EN) EN = GND or VIN 0.01 0.1 μA
VOVP Output overvoltage protection 4.0 4.5 V
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