ZHCSOW8 July   2022 LP5912-EP

PRODUCTION DATA  

  1. 特性
  2. 应用
  3. 说明
  4. Revision History
  5. Pin Configuration and Functions
  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 Output and Input Capacitors
    7. 6.7 Typical Characteristics
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Enable (EN)
      2. 7.3.2 Output Automatic Discharge (RAD)
      3. 7.3.3 Reverse Current Protection (IRO)
      4. 7.3.4 Internal Current Limit (ISC)
      5. 7.3.5 Thermal Overload Protection (TSD)
      6. 7.3.6 Power-Good Output (PG)
    4. 7.4 Device Functional Modes
      1. 7.4.1 Enable (EN)
      2. 7.4.2 Minimum Operating Input Voltage (VIN)
  8. Applications 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 External Capacitors
        2. 8.2.2.2 Input Capacitor
        3. 8.2.2.3 Output Capacitor
        4. 8.2.2.4 Capacitor Characteristics
        5. 8.2.2.5 Remote Capacitor Operation
        6. 8.2.2.6 Power Dissipation
        7. 8.2.2.7 Estimating Junction Temperature
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  9. Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 接收文档更新通知
    3. 9.3 支持资源
    4. 9.4 Trademarks
  10. 10Electrostatic Discharge Caution
  11. 11术语表
  12. 12Mechanical, Packaging, and Orderable Information

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机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

Typical Characteristics

VIN = VOUT + 0.5 V, VEN = VIN, IOUT = 1 mA, CIN = 1 µF, COUT = 1 µF, and TJ = 25°C (unless otherwise noted)

GUID-CE12E7D8-6DC6-465F-A20A-8567BA02C37D-low.gif
 
Figure 6-1 VEN Thresholds vs Input Voltage
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Figure 6-3 LP5912-1.8 Output Voltage (VPG) vs Input Voltage
GUID-FA9D851D-F70D-4008-A45D-51C7BA7D97F4-low.gif
VIN = 0 V to 1.6 V, IOUT = 1 mA
Figure 6-5 LP5912-0.9 Power Up
GUID-FD79FDA6-65B3-4314-8992-1DE296FAB5D4-low.gif
VIN = 0 V to 2.3 V, IOUT = 1 mA
Figure 6-7 LP5912-1.8 Power Up
GUID-CC45936F-9594-4E18-A828-19FA51D16A2B-low.gif
VIN = 0 V to 3.8 V, IOUT = 1 mA
Figure 6-9 LP5912-3.3 Power Up
GUID-F61BDF21-5C7D-417B-B292-CF6353DBFB8F-low.gif
IOUT = 0 mA
Figure 6-11 LP5912-0.9 IQ (No Load) vs VIN
GUID-4CA4CD95-720A-478A-ABC5-725D396D180C-low.gif
IOUT = 0 mA
Figure 6-13 LP5912-3.3 IQ (No Load) vs VIN
GUID-7586F0F7-3769-4399-934A-B5E47549CE02-low.png
VEN = 0 V
Figure 6-15 LP5912-1.8 IQ(SD) vs VIN
GUID-0C16AAA1-410C-48F4-811F-D05A8C8E8046-low.gif
VIN = 1.6 V
Figure 6-17 LP5912-0.9 IQ(SD) vs IOUT
GUID-2268A73F-5C8A-4347-8AC8-9B4B32257642-low.gif
 
Figure 6-19 LP5912-3.3 IQ(SD) vs IOUT
GUID-374BBB4A-0DE9-4A18-A4FE-3FB75DC24558-low.gif
VIN = 1.6 V
Figure 6-21 LP5912-0.9 PSRR vs Frequency
GUID-3CAD03C2-DB17-4084-AA5A-0F838921AEAA-low.gif
 
Figure 6-23 LP5912-1.8 PSRR vs Frequency
GUID-49C6ADB9-5A77-4EF1-923A-4744A4E8D0BA-low.gif
 
Figure 6-25 LP5912-3.3 PSRR vs Frequency
GUID-5FDF53B2-05E1-4F96-B481-E659C7B7DE64-low.gif
VIN = 2.2 V to 1.6 V, tf = 30 µs
Figure 6-27 LP5912-0.9 Line Transient
GUID-5C8886F5-88F8-4338-8B85-05B9650F91A6-low.gif
VIN = 2.9 V to 2.3 V, tf = 30 µs
Figure 6-29 LP5912-1.8 Line Transient
GUID-DD446EE4-3CCC-4E48-A26B-C097A3196916-low.gif
VIN = 4.4 V to 3.8 V, tf = 30 µs
Figure 6-31 LP5912-3.3 Line Transient
GUID-3257D9C9-6AC3-458C-9031-6045774A7DFB-low.gif
VIN = 1.6 V, IOUT = 500 mA to 5 mA, tf = 10 µs
Figure 6-33 LP5912-0.9 Load Transient Response
GUID-E4A06CFC-1183-4623-8673-021185B22DEF-low.gif
IOUT = 500 mA to 5 mA, tf = 10 µs
Figure 6-35 LP5912-1.8 Load Transient Response
GUID-D49FD526-7393-4055-9C96-4E8D830EF9AB-low.gif
IOUT = 500 mA to 5 mA, tf = 10 µs
Figure 6-37 LP5912-3.3 Load Transient Response
GUID-51245D27-3B28-49B2-A1F1-A65F14FCA30E-low.gif
IOUT = 0 mA, COUT = 1 µF
Figure 6-39 LP5912-1.8 VOUT vs VEN(OFF)
GUID-D508CC00-2F57-4C85-AD5F-F44B9787B659-low.gif
IOUT = 1 mA, COUT = 1 µF
Figure 6-41 LP5912-1.8 VOUT vs VEN(OFF)
GUID-1ACAE534-62F8-44CB-923D-FDEFD4E5695D-low.gif
IOUT = 500 mA, COUT = 1 µF
Figure 6-43 LP5912-1.8 VOUT vs VEN(OFF)
GUID-06EB5DFE-3BF8-4837-96B9-F8A9CE4A73AA-low.gif
 
Figure 6-45 LP5912-3.3 Dropout Voltage (VDO) vs IOUT
GUID-C43DCB72-6FF8-4A5C-89D8-D9C8ADB6D7FE-low.gif
 
Figure 6-47 LP5912-1.8 Noise vs Frequency
GUID-6A5FC41C-DA51-4D68-8F75-F3344308651B-low.gif
IOUT = 0 mA (no load)
Figure 6-49 LP5912-3.3 Turn-On Time vs Junction Temperature
GUID-6028AB8D-04B3-49A1-97AA-8077CB772F0D-low.gif
CIN = open, IOUT = 1 mA, COUT = 1 µF
Figure 6-51 LP5912-3.3 Inrush Current
GUID-974DF1C3-5C9A-48B5-93F8-E7983EEB1AA4-low.gif
CIN = open, IOUT = 1 mA, COUT = 10 µF
Figure 6-53 LP5912-3.3 Inrush Current
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Figure 6-2 LP5912-0.9 Output Voltage (VPG) vs Input Voltage
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Figure 6-4 LP5912-3.3 Output Voltage (VPG) vs Input Voltage
GUID-4071BE8C-5E9E-49A6-9783-E23429D1C98C-low.gif
VIN = 0 V to 1.6 V, IOUT = 500 mA
Figure 6-6 LP5912-0.9 Power Up
GUID-B069E188-F717-4545-B3AA-D210F2B8DF97-low.gif
VIN = 0 V to 2.3 V, IOUT = 500 mA
Figure 6-8 LP5912-1.8 Power Up
GUID-CF8914C0-5F36-4BB4-A50A-8FA0A87B3BE1-low.gif
VIN = 0 V to 3.8 V, IOUT = 500 mA
Figure 6-10 LP5912-3.3 Power Up
GUID-92446C65-32BC-4321-AA7D-0BE27D241485-low.gif
IOUT = 0 mA
Figure 6-12 LP5912-1.8 IQ (No Load) vs VIN
GUID-FBE2EFDD-B69C-4821-9B39-6D94EADA845F-low.png
VEN = 0 V
Figure 6-14 LP5912-0.9 IQ(SD) vs VIN
GUID-0C5555AE-6EB0-4F97-9D33-8738D7CBDEF8-low.png
VEN = 0 V
Figure 6-16 LP5912-3.3 IQ(SD) vs VIN
GUID-4792AAF0-8B53-4497-BF65-1B0723F06F31-low.gif
 
Figure 6-18 LP5912-1.8 IQ(SD) vs IOUT
GUID-9E8DA6F8-93AD-46F0-A264-BB27969518A9-low.gif
VIN = 1.6 V, IOUT = 20 mA
Figure 6-20 LP5912-0.9 PSRR vs Frequency
GUID-64226737-3D41-40ED-A06F-2840FAE6B2E6-low.gif
IOUT = 20 mA
Figure 6-22 LP5912-1.8 PSRR vs Frequency
GUID-2192434F-3AEF-4FBD-9B38-2C7EDFEB5544-low.gif
IOUT = 20 mA
Figure 6-24 LP5912-3.3 PSRR vs Frequency
GUID-88D1F88E-303E-4A97-803E-1CF8D88A805B-low.gif
VIN = 1.6 V to 2.2 V, tr = 30 µs
Figure 6-26 LP5912-0.9 Line Transient
GUID-248273E9-6446-41B1-915B-37C0FE86620C-low.gif
VIN = 2.3 V to 2.9 V, tr = 30 µs
Figure 6-28 LP5912-1.8 Line Transient
GUID-90A701E2-4B99-4618-9878-7CE50850BC53-low.gif
VIN = 3.8 V to 4.4 V, tr = 30 µs
Figure 6-30 LP5912-3.3 Line Transient
GUID-F5F0CE00-DFA8-4CE4-8630-41312A3F89E6-low.gif
VIN = 1.6 V, IOUT = 5 mA to 500 mA, tr = 10 µs
Figure 6-32 LP5912-0.9 Load Transient Response
GUID-7473BACD-F359-499D-BDAD-1229B2D361BB-low.gif
IOUT = 5 mA to 500 mA, tr = 10 µs
Figure 6-34 LP5912-1.8 Load Transient Response
GUID-3145C8D6-4EE7-4DEA-AE44-BC9956502937-low.gif
IOUT = 5 mA to 500 mA, tr = 10 µs
Figure 6-36 LP5912-3.3 Load Transient Response
GUID-494A5ECA-2502-4E6D-A51C-47C13F25E2DB-low.gif
IOUT = 0 mA, COUT = 1 µF
Figure 6-38 LP5912-1.8 VOUT vs VEN(ON)
GUID-1FFC5BCF-D237-48B9-9FC3-B3D05F46C026-low.gif
IOUT = 1 mA, COUT = 1 µF
Figure 6-40 LP5912-1.8 VOUT vs VEN(ON)
GUID-9CCF1FC2-9EBF-4AFA-95CB-244A420F49AE-low.gif
IOUT = 500 mA, COUT = 1 µF
Figure 6-42 LP5912-1.8 VOUT vs VEN(ON)
GUID-9C2C6139-7571-46D4-8459-7F7D07B9E6DA-low.gif
 
Figure 6-44 LP5912-1.8 Dropout Voltage (VDO) vs IOUT
GUID-53F5ADB0-E5BA-4B1A-A9CC-6FAA04CA2844-low.gif
VIN = 1.6 V
Figure 6-46 LP5912-0.9 Noise vs Frequency
GUID-16ECF86E-D184-4690-BB76-82C0A06D0276-low.gif
 
Figure 6-48 LP5912-3.3 Noise vs Frequency
GUID-086C7831-8051-4891-B17A-6D2ED743D361-low.gif
CIN = open, IOUT = 500 mA, COUT = 1 µF
Figure 6-50 LP5912-3.3 Inrush Current
GUID-2BDF364B-FA30-44AE-9CBD-793F85EED3BD-low.gif
CIN = open, IOUT = 500 mA, COUT = 10 µF
Figure 6-52 LP5912-3.3 Inrush Current