ZHCSKD6 October   2019 LM5163

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      典型应用
      2.      典型应用效率，VOUT = 12V
  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 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Control Architecture
      2. 7.3.2  Internal VCC Regulator and Bootstrap Capacitor
      3. 7.3.3  Regulation Comparator
      4. 7.3.4  Internal Soft Start
      5. 7.3.5  On-Time Generator
      6. 7.3.6  Current Limit
      7. 7.3.7  N-Channel Buck Switch and Driver
      8. 7.3.8  Synchronous Rectifier
      9. 7.3.9  Enable/Undervoltage Lockout (EN/UVLO)
      10. 7.3.10 Power Good (PGOOD)
      11. 7.3.11 Thermal Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode
      2. 7.4.2 Active Mode
      3. 7.4.3 Sleep Mode
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Custom Design With WEBENCH® Tools
        2. 8.2.2.2 Switching Frequency (RRON)
        3. 8.2.2.3 Buck Inductor (LO)
        4. 8.2.2.4 Output Capacitor (COUT)
        5. 8.2.2.5 Input Capacitor (CIN)
        6. 8.2.2.6 Type 3 Ripple Network
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Compact PCB Layout for EMI Reduction
      2. 10.1.2 Feedback Resistors
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 器件支持
      1. 11.1.1 第三方产品免责声明
      2. 11.1.2 开发支持
        1. 11.1.2.1 使用 WEBENCH® 工具创建定制设计
    2. 11.2 相关文档
    3. 11.3 接收文档更新通知
    4. 11.4 支持资源
    5. 11.5 商标
    6. 11.6 静电放电警告
    7. 11.7 Glossary
  12. 12机械、封装和可订购信息

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

6.5 Electrical Characteristics

Typical values correspond to TJ = 25°C. Minimum and maximum limits apply over the full –40°C to 150°C junction temperature range unless otherwise indicated. VIN = 24 V and VEN/UVLO = 2 V unless otherwise stated.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SUPPLY CURRENT
IQ-SHUTDOWN VIN shutdown current VEN = 0 V 3 15 µA
IQ-SLEEP1 VIN sleep current VEN = 2.5 V, VFB = 1.5 V 10.5 25 µA
IQ-ACTIVE VIN active current VEN = 2.5 V 600 880 µA
EN/UVLO
VSD-RISING Shutdown threshold VEN/UVLO rising 1.1 V
VSD-FALLING Shutdown threshold VEN/UVLO falling 0.45 V
VEN-RISING Enable threshold VEN/UVLO rising 1.45 1.5 1.55 V
VEN-FALLING Enable threshold VEN/UVLO falling 1.35 1.4 1.44 V
FEEDBACK
VREF FB regulation voltage VFB falling 1.181 1.2 1.218 V
TIMING
tON1 On-time1 VVIN = 6 V, RRON = 75 kΩ 5000 ns
tON2 On-time2 VVIN = 6 V, RRON = 25 kΩ 650 ns
tON3 On-time3 VVIN = 12 V, RRON = 75 kΩ 2550 ns
tON4 On-time4 VVIN = 12 V, RRON = 25 kΩ 830 ns
PGOOD
VPG-UTH FB upper threshold for PGOOD high to low VFB rising 1.105 1.14 1.175 V
VPG-LTH FB lower threshold for PGOOD high to low VFB falling 1.055 1.08 1.1 V
VPG-HYS PGOOD upper and lower threshold hysteresis VFB falling 60 mV
RPG PGOOD pulldown resistance VFB = 1 V 30 Ω
BOOTSTRAP
VBST-UV Gate drive UVLO VBST rising 2.7 3.4 V
POWER SWITCHES
RDSON-HS High-side MOSFET RDSON ISW = –100 mA 0.725 Ω
RDSON-LS Low-side MOSFET RDSON ISW = 100 mA 0.33 Ω
SOFT START
tSS Internal soft-start time 1.75 3 4.75 ms
CURRENT LIMIT
IPEAK1 Peak current limit threshold (HS) 0.63 0.75 0.87 A
IPEAK2 Peak current limit threshold (LS) 0.63 0.75 0.87 A
IDELTA-ILIM Min of (IPEAK1 or IPEAK2) minus IVALLEY 100 mA
IVALLEY Valley current limit threshold 0.5 0.6 0.72 A
THERMAL SHUTDOWN
TSD Thermal shutdown threshold TJ rising 175 °C
TSD-HYS Thermal shutdown hysteresis 10 °C