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参数资料
型号： ADP1879-0.3-EVALZ
厂商： Analog Devices Inc
文件页数： 2/40页
文件大小： 0K
描述： BOARD EVAL FOR ADP1879-0.3
标准包装： 1
系列： *

ADP1878/ADP1879
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Typical Applications Circuit............................................................ 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings ....................................................... 5
Thermal Resistance ...................................................................... 5
ESD Caution .................................................................................. 5
Pin Configuration and Function Descriptions ............................. 6
Typical Performance Characteristics ............................................. 7
Theory of Operation ...................................................................... 17
Block Diagram ............................................................................ 17
Startup .......................................................................................... 18
Soft Start ...................................................................................... 18
Precision Enable Circuitry ........................................................ 18
Undervoltage Lockout ............................................................... 18
On-Board Low Dropout (LDO) Regulator ............................. 18
Thermal Shutdown ..................................................................... 19
Programming Resistor (RES) Detect Circuit.......................... 19
Valley Current-Limit Setting .................................................... 19
Hiccup Mode During Short Circuit ......................................... 21
Synchronous Rectifier ................................................................ 21
ADP1879 Power Saving Mode (PSM) ...................................... 21
Data Sheet
Pseudo Fixed Frequency............................................................ 22
Power-Good Monitoring ........................................................... 23
Applications Information .............................................................. 24
Feedback Resistor Divider ........................................................ 24
Inductor Selection ...................................................................... 24
Output Ripple Voltage (ΔV RR ) .................................................. 24
Output Capacitor Selection....................................................... 24
Compensation Network ............................................................ 25
Efficiency Consideration ........................................................... 26
Input Capacitor Selection .......................................................... 27
Thermal Considerations............................................................ 27
Design Example .......................................................................... 29
External Component Recommendations .................................... 31
Layout Considerations ................................................................... 33
IC Section (Left Side of Evaluation Board) ............................. 35
Power Section ............................................................................. 35
Differential Sensing .................................................................... 36
Typical Application Circuits ......................................................... 37
12 A, 300 kHz High Current Application Circuit .................. 37
5.5 V Input, 600 kHz Current Application Circuit ................ 37
300 kHz High Current Application Circuit ............................ 38
Packaging and Ordering Information ......................................... 39
Outline Dimensions ................................................................... 39
Ordering Guide .......................................................................... 40
Timer Operation ......................................................................... 22
REVISION HISTORY
9/12—Rev. A to Rev. B
Changes to Table 7 ...........................................................................20
6/12—Rev. 0 to Rev. A
Changes to Table 1 ............................................................................. 3
7/11—Revision 0: Initial Version
Rev. B | Page 2 of 40
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ADP1879-1.0-EVALZ 功能描述:BOARD EVAL FOR ADP1879-1.0 RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:* 标准包装:1 系列:- 主要目的:DC/DC，步降 输出及类型:1，非隔离 功率 - 输出:- 输出电压:3.3V 电流 - 输出:3A 输入电压:4.5 V ~ 28 V 稳压器拓扑结构:降压 频率 - 开关:250kHz 板类型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名称:497-12113STEVAL-ISA094V1-ND
ADP1879ACPZ-0.3-R7 功能描述:IC REG CTRLR BUCK PWM CM 14LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 特色产品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 标准包装:1 系列:PowerWise® PWM 型:电压模式 输出数:1 频率 - 最大:1MHz 占空比:81% 电源电压:4.5 V ~ 18 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-5°C ~ 125°C 封装/外壳:32-WFQFN 裸露焊盘 包装:Digi-Reel® 产品目录页面:1303 (CN2011-ZH PDF) 其它名称:LM3754SQDKR
ADP1879ACPZ-0.6-R7 功能描述:IC REG CTRLR BUCK PWM CM 14LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR)
ADP1879ACPZ-1.0-R7 功能描述:IC REG CTRLR BUCK PWM CM 14LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR)
ADP1880ACPZ-R7 制造商:Analog Devices 功能描述:
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