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参数资料
| 型号： | LM10506TME |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBGA34 |
| 封装： | 0.40 MM PITCH, MICRO SMD-34 |
| 文件页数： | 12/34页 |
| 文件大小： | 1020K |
| 代理商： | LM10506TME |
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Table of Contents
1.0 General Description ......................................................................................................................... 1
2.0 Key Specifications ........................................................................................................................... 1
3.0 Features ........................................................................................................................................ 1
4.0 Applications .................................................................................................................................... 1
5.0 Typical Application Diagram .............................................................................................................. 1
6.0 Overview ........................................................................................................................................ 3
6.1 SUPPLY SPECIFICATION ........................................................................................................ 3
7.0 Connection Diagram and Package Marking ......................................................................................... 4
8.0 LM10506 Pin Descriptions ................................................................................................................ 5
9.0 Ordering Information ........................................................................................................................ 5
10.0 Absolute Maximum Ratings ............................................................................................................. 6
11.0 Operating Ratings .......................................................................................................................... 6
12.0 General Electrical Characteristics .................................................................................................... 6
13.0 Buck 1 Electrical Characteristics ..................................................................................................... 7
14.0 Buck 2 Electrical Characteristics ..................................................................................................... 8
15.0 Buck 3 Electrical Characteristics ..................................................................................................... 8
16.0 LDO Electrical Characteristics ........................................................................................................ 9
17.0 Comparators Electrical Characteristics ............................................................................................. 9
18.0 Typical Performance Characteristics .............................................................................................. 11
19.0 General Description ..................................................................................................................... 15
19.1 SPI DATA INTERFACE ......................................................................................................... 16
19.1.1 Registers Configurable Via The SPI Interface ................................................................. 17
OUT Level Mapping ........ 19
OUT Level Mapping ........................ 20
19.1.1.3 ADDR 0x0B: Comparator Threshold Mapping ....................................................... 21
19.2 BUCK REGULATORS OPERATION ....................................................................................... 22
19.2.1 Buck Regulators Description ........................................................................................ 22
19.2.2 PWM Operation .......................................................................................................... 22
19.2.3 PFM Operation (Bucks 1, 2 & 3) ................................................................................... 23
19.2.4 Soft Start ................................................................................................................... 23
19.2.5 Current Limiting .......................................................................................................... 23
19.2.6 Internal Synchronous Rectification ................................................................................ 24
19.2.7 Bypass-FET Operation on Buck 1 and Buck 2 ................................................................ 24
19.2.8 Low Dropout Operation ............................................................................................... 24
20.0 Device Operating Modes .............................................................................................................. 25
20.1 STARTUP SEQUENCE ......................................................................................................... 25
20.2 POWER-ON DEFAULT AND DEVICE ENABLE ....................................................................... 25
20.3 RESET: PIN FUNCTION ....................................................................................................... 25
20.4 STANDBY: FUNCTION ......................................................................................................... 25
20.4.1 STANDBY Pin ............................................................................................................ 25
20.4.2 STANDBY Programming via SPI .................................................................................. 26
20.5 HL_B2, HL_B3 FUNCTION .................................................................................................... 26
20.6 UNDERVOLTAGE LOCKOUT (UVLO) .................................................................................... 26
20.7 OVERVOLTAGE LOCKOUT (OVLO) ...................................................................................... 26
20.8 DEVICE STATUS, INTERRUPT ENABLE ................................................................................ 26
20.9 THERMAL SHUTDOWN (TSD) .............................................................................................. 26
20.10 COMPARATOR .................................................................................................................. 27
21.0 External Components Selection ..................................................................................................... 28
21.1 OUTPUT INDUCTORS & CAPACITORS SELECTION .............................................................. 28
21.2 INDUCTOR SELECTION ...................................................................................................... 28
21.2.1 Recommended Method for Inductor Selection: ................................................................ 28
21.2.2 Alternate Method for Inductor Selection: ........................................................................ 28
21.2.2.1 Suggested Inductors and Their Suppliers ............................................................. 28
21.2.3 OUTPUT AND INPUT CAPACITORS CHARACTERISTICS ............................................. 29
21.2.3.1 Output Capacitor Selection ................................................................................. 29
21.2.3.2 Input Capacitor Selection ................................................................................... 30
22.0 PCB Layout Considerations .......................................................................................................... 31
22.1 PCB LAYOUT THERMAL DISSIPATION FOR MICRO SMD PACKAGE ...................................... 32
23.0 Physical Dimensions .................................................................................................................... 33
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LM10506
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相关代理商/技术参数 |
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|---|---|
| LM10506TME/NOPB | 功能描述:直流/直流开关转换器 Triple Buck & LDO Power Mgmt Unit RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LM10506TME-A | 制造商:TI 制造商全称:Texas Instruments 功能描述:Triple Buck LDO Power Management Unit |
| LM10506TME-A/NOPB | 功能描述:直流/直流开关转换器 Triple Buck & LDO Power Mgmt Unit RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LM10506TMX | 制造商:TI 制造商全称:Texas Instruments 功能描述:Triple Buck LDO Power Management Unit |
| LM10506TMX/NOPB | 功能描述:PMIC 解决方案 Triple Buck & LDO Power Mgmt Unit RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
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