ZHCSUJ4B January   2022  – January 2024 TPS61376

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 VCC Power Supply
      2. 6.3.2 Enable and Programmable UVLO
      3. 6.3.3 Soft Start and Inrush Current Control During Start-Up
      4. 6.3.4 Switching Frequency
      5. 6.3.5 Adjustable input average Current Limit
      6. 6.3.6 Shut Down and Load Disconnect
      7. 6.3.7 Overvoltage Protection
      8. 6.3.8 Output Short Protection
      9. 6.3.9 Thermal Shutdown
    4. 6.4 Device Functional Modes
      1. 6.4.1 PWM Mode
      2. 6.4.2 Auto PFM Mode
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Setting Output Voltage
        2. 7.2.2.2 Inductor Selection
        3. 7.2.2.3 Bootstrap Capacitor Selection
        4. 7.2.2.4 Input Capacitor Selection
        5. 7.2.2.5 Output Capacitor Selection
        6. 7.2.2.6 Diode Selection
        7. 7.2.2.7 Loop Stability
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
        1. 7.4.2.1 Thermal Considerations
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 第三方产品免责声明
    2. 8.2 接收文档更新通知
    3. 8.3 支持资源
    4. 8.4 Trademarks
    5. 8.5 静电放电警告
    6. 8.6 术语表
  10. 9 Revision History
  11. 10Mechanical, 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

5.5 Electrical Characteristics

TJ = -40 to 125°C, L = 4.7 µH, VIN = 5 V and VOUT = 12 V. Typical values are at TJ = 25°C, (unless otherwise noted)
PARAMETER PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
POWER SUPPLY
VIN Input voltage range 2.9 23 V
VIN_UVLO VIN under voltage lockout threshold VIN  rising 2.8 2.9 V
VIN  falling 2.6 2.7 V
VIN_HYS VIN UVLO hysteresis 200 mV
IQ Quiescent current into VOUT pin IC enabled, no load, no switching
VIN = 2.9V to 5.25V, VOUT = 25 V, VFB = VREF + 0.1V		 80 110 µA
IQ Quiescent current into VOUT pin IC enabled, no load, no switching
VIN = 5.5V to 23V, VOUT = 25 V, VFB = VREF + 0.1V		 2 8 µA
Quiescent current into VIN pin IC enabled, no load, no switching
VIN = 2.9V to 5.25V, VFB = VREF + 0.1V		 1.5 2 µA
IQ Quiescent current into VIN pin IC enabled, no load, no switching
VIN = 5.5V to 23V, VFB = VREF + 0.1V		 80 110 µA
VCC_UVLO VCC UVLO threshold VCC rising 2.75 V
VCC_HYS VCC UVLO hysteresis VCC hysteresis 160 mV
VCC VCC regulation IVCC = 4mA, VOUT = 12V 4.80 V
ISD Shutdown current into VIN pin IC disabled, VIN = 2.9V to 23V, EN = GND 1.25 µA
ISW_LKG Leakage current into SW IC disabled, VP = 0V, SW = 25V,TJ up
to 85°C		 2 µA
IVP_LKG Leakage current into VP IC disabled, VP = 25V, SW = 0V,TJ up
to 85°C		 2 µA
IFB_LKG Leakage current into FB IC disabled, TJ up to 85°C 16 nA
OUTPUT VOLTAGE
VOVP Output over-voltage protection threshold VIN  = 3.3V, VOUT rising 26.5 27.5 28.6 V
VOVP_HYS Output over-voltage protection hysteresis VIN = 3.3V, OVP threshold 0.9 V
VOLTAGE REFERENCE
VREF Reference Voltage at FB pin TJ = –40 to 125°C 0.985 1 1.015 V
POWER SWITCH
RDS(on) Low-side MOSFET on resistance VCC = 4.85V,  50 mΩ
RDS(on) ISO MOSFET on resistance VCC = 4.85V, ISEL = high 40 mΩ
RDS(on) ISO MOSFET on resistance(scale) VCC = 4.85V, ISEL = low 160 mΩ
CURRENT LIMIT
ILIM_SW Peak switching current limit  RLIM = 14.4kΩ, ISEL = high ,VIN = 2.9V to 23V 3.76 4.5 5.35 A
ILIM_SW Peak switching current limit RLIM = 14.4kΩ, ISEL = low, VIN = 2.9V to 23V 1.7 2.5 3.3 A
ILIM_DC_Range Input DC current limit range 0.1 3 A
ILIM_DC_Accuracy Input DC current limit 1.5 A to 3.0 A VIN = 5V, VOUT = 12V, TJ = 25°C –2.5 2.5 %
ILIM_DC_Accuracy Input DC current limit  0.75 A to 1.5 A VIN = 5V, VOUT = 12V, TJ = 25°C –5 5 %
ILIM_DC_Accuracy Input DC current limit 0.1 A to 0.75 A VIN = 5V, VOUT = 12V, TJ = 25°C –10 10 %
ILIM_DC_Accuracy Input DC current limit  0.75 A to 3.0 A VIN = 2.9V to 23V, VOUT = 4.5V to 25 V, TJ = –40 to 125°C –5 5 %
ILIM_DC_Accuracy Input DC current limit  0.2 A to 0.75 A VIN = 2.9V to 23V, VOUT = 4.5V to 25V, TJ = –40 to 125°C –10 10 %
ILIM_DC_Accuracy Input DC current limit  0.1 A to 0.2 A VIN = 2.9V to 23V, VOUT = 4.5V to 25V, TJ = –40 to 125°C –20 20 %
SWITCHING FREQUENCY
Fsw Switching frequency VIN = 2.9V to 23V, VOUT = 4.5V to 25V 1200 kHz
TSS Soft-start time 4 ms
tOFF_min Minimum off time 120 ns
tON_min Minimum on time 65 ns
ERROR AMPLIFIER
ISINK COMP pin sink current 20 µA
ISOURCE COMP pin source current 20 µA
VCCLPH COMP pin high clamp voltage 1.6 V
VCCLPL COMP pin low clamp voltage 0.5 V
GmEA Error amplifier trans conductance 240 µS
LOGIC INTERFACE
VEN_H EN Logic high threshold 0.812 V
VEN_L EN Logic low threshold 0.36 V
VEN_L EN threshold hysteresis 120 mV
VUVLO UVLO rising threshold 0.790 0.813 0.835 V
IUVLO_HYS Sourcing current at the EN/UVLO pin 1.75 2 2.25 µA
VIH ISEL pins Logic high threshold 0.84 V
VIL ISEL pins Logic Low threshold 0.36 V
RDOWN ISEL pins internal pull down resistor 800 kΩ
THERMAL SHUTDOWN
tSD_R Thermal shutdown rising threshold TJ rising 150 °C
tSD_F Thermal shutdown falling threshold TJ falling 130 °C