ZHCSO88 June   2021 LMR33620AP-Q1 , LMR33630AP-Q1

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Device Comparison Table
  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 Timing Characteristics
    7. 7.7 System Characteristics
    8. 7.8 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-Good Flag Output
      2. 8.3.2 Enable and Start-Up
      3. 8.3.3 Current Limit and Short Circuit
      4. 8.3.4 Undervoltage Lockout and Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Auto Mode
      2. 8.4.2 Dropout
      3. 8.4.3 Minimum Switch On Time
  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  Choosing the Switching Frequency
        3. 9.2.2.3  Setting the Output Voltage
        4. 9.2.2.4  Inductor Selection
        5. 9.2.2.5  Output Capacitor Selection
        6. 9.2.2.6  Input Capacitor Selection
        7. 9.2.2.7  CBOOT
        8. 9.2.2.8  VCC
        9. 9.2.2.9  CFF Selection
        10. 9.2.2.10 External UVLO
        11. 9.2.2.11 Maximum Ambient Temperature
      3. 9.2.3 Application Curves
    3. 9.3 What to Do and What Not to Do
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Ground and Thermal Considerations
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 第三方米6体育平台手机版_好二三四免责声明
      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 支持资源
    4. 12.4 接收文档更新通知
    5. 12.5 Trademarks
    6. 12.6 静电放电警告
    7. 12.7 术语表
  13. 13Mechanical, 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

7.5 Electrical Characteristics

Limits apply over the operating junction temperature (TJ) range of –40°C to +125°C, unless otherwise stated. Minimum and maximum limits are specified through test, design or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Unless otherwise stated, the following conditions apply: VIN  = 12 V, VEN = 4 V.     
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SUPPLY VOLTAGE
VIN Minimum operating input voltage 3.8 V
IQ Nonswitching input current; measured at VIN pin (2) VFB = 1.2 V 24 34 µA
ISD Shutdown quiescent current; measured at VIN pin EN = 0 5 10 µA
ENABLE
VEN-VCC-H EN input level required to turn on the internal LDO Rising threshold 1 V
VEN-VCC-L EN input level required to turn off the internal LDO Falling threshold 0.3 V
VEN-H EN input level required to start switching Rising threshold 1.2 1.231 1.26 V
VEN-HYS Hysteresis below VEN-H Hysteresis below VEN-H; falling 100 mV
ILKG-EN Enable input leakage current VEN = 3.3 V 0.2 nA
INTERNAL SUPPLIES
VCC Internal LDO output voltage appearing at the VCC pin 6 V ≤ VIN ≤ 36 V 4.75 5 5.25 V
VBOOT-UVLO Bootstrap voltage undervoltage lockout threshold(3) 2.2 V
VOLTAGE REFERENCE (FB PIN)
VFB Feedback voltage; ADJ option 0.985 1 1.015 V
IFB Current into FB pin; ADJ option FB = 1 V 0.2 50 nA
CURRENT LIMITS(4)
ISC High-side current limit LMR33620AP-Q1 2.9 3.5 4 A
ISC High-side current limit LMR33630AP-Q1 3.85 4.5 5.05 A
ILIMIT Low-side current limit LMR33620AP-Q1 1.95 2.45 2.9 A
ILIMIT Low-side current limit LMR33630AP-Q1 2.9 3.5 4.1 A
IPEAK-MIN Minimum peak inductor current LMR33620AP-Q1 0.54 A
IPEAK-MIN Minimum peak inductor current LMR33630AP-Q1 0.69 A
IZC Zero current detector threshold -0.106 A
SOFT START
tSS Internal soft-start time 2.9 4 6 ms
POWER GOOD (PG PIN)
VPG-HIGH-UP Power-good upper threshold - rising % of FB voltage 105% 107% 110%
VPG-HIGH-DN Power-good upper threshold - falling % of FB voltage 103% 105% 108%
VPG-LOW-UP Power-good lower threshold - rising % of FB voltage 92% 94% 97%
VPG-LOW-DN Power-good lower threshold - falling % of FB voltage 90% 92% 95%
tPG Power-good glitch filter delay(1) 60 170 µs
RPG Power-good flag RDSON VIN = 12 V, VEN = 4 V 76 150 Ω
VEN = 0 V 35 60
VIN-PG Minimum input voltage for proper PG function 50-µA, EN = 0 V 2 V
VPG PG logic low output 50-µA, EN = 0 V, VIN = 2V 0.2 V
OSCILLATOR
ƒSW Switching frequency "A" Version, RNX package 340 400 460 kHz
ƒSW Switching frequency "C" Version, RNX package 1.8 2.1 2.3 MHz
MOSFETS
RDS-ON-HS High-side MOSFET ON-resistance RNX package 75 145 mΩ
RDS-ON-LS Low-side MOSFET ON-resistance RNX package 50 95 mΩ
(1) See Power-Good Flag Output for details.
(2) This is the current used by the device open loop. It does not represent the total input current of the system when in regulation.
(3) When the voltage across the CBOOT capacitor falls below this voltage, the low side MOSFET is turned on to recharge CBOOT.
(4) The current limit values in this table are tested, open loop, in production. They may differ from those found in a closed loop application.
千亿体育app官网登录(中国)官方网站IOS/安卓通用版/手机APP | 米乐app下载官网（中国）|ios|Android/通用版APP最新版 | 米乐|米乐·M6（中国大陆）官方网站 | 千亿体育登陆地址 | 华体会体育（中国）HTH·官方网站 | 千赢qy国际_全站最新版千赢qy国际V6.2.14安卓/IOS下载 | 18新利网v1.2.5|中国官方网站 | bob电竞真人（中国官网）安卓/ios苹果/电脑版【1.97.95版下载】 | 千亿体育app官方下载(中国)官方网站IOS/安卓/手机APP下载安装 |