5秒后页面跳转
ADP1871ARMZ-0.6-R7 PDF预览

ADP1871ARMZ-0.6-R7

更新时间: 2024-02-10 15:02:52
品牌 Logo 应用领域
亚德诺 - ADI 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管输出元件PC
页数 文件大小 规格书
44页 1932K
描述
Synchronous Buck Controller with Constant On-Time and Valley Current Mode

ADP1871ARMZ-0.6-R7 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:TSSOP
包装说明:TSSOP,针数:10
Reach Compliance Code:unknown风险等级:5.65
其他特性:MINIMUM OUTPUT VOLTAGE: 0.6V模拟集成电路 - 其他类型:SWITCHING CONTROLLER
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:20 V最小输入电压:2.95 V
标称输入电压:12 VJESD-30 代码:S-PDSO-G10
JESD-609代码:e3长度:3 mm
湿度敏感等级:1功能数量:1
端子数量:10最高工作温度:125 °C
最低工作温度:-40 °C标称输出电压:5 V
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
封装形状:SQUARE封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260座面最大高度:1.1 mm
表面贴装:YES切换器配置:PUSH-PULL
最大切换频率:600 kHz温度等级:AUTOMOTIVE
端子面层:MATTE TIN端子形式:GULL WING
端子节距:0.5 mm端子位置:DUAL
处于峰值回流温度下的最长时间:40宽度:3 mm
Base Number Matches:1

ADP1871ARMZ-0.6-R7 数据手册

 浏览型号ADP1871ARMZ-0.6-R7的Datasheet PDF文件第2页浏览型号ADP1871ARMZ-0.6-R7的Datasheet PDF文件第3页浏览型号ADP1871ARMZ-0.6-R7的Datasheet PDF文件第4页浏览型号ADP1871ARMZ-0.6-R7的Datasheet PDF文件第5页浏览型号ADP1871ARMZ-0.6-R7的Datasheet PDF文件第6页浏览型号ADP1871ARMZ-0.6-R7的Datasheet PDF文件第7页 
Synchronous Buck Controller with  
Constant On-Time and Valley Current Mode  
ADP1870/ADP1871  
FEATURES  
TYPICAL APPLICATIONS CIRCUIT  
V
= 2.95V TO 20V  
IN  
Power input voltage range: 2.95 V to 20 V  
On-board bias regulator  
Minimum output voltage: 0.6 V  
0.6 V reference voltage with 1.0% accuracy  
Supports all N-channel MOSFET power stages  
Available in 300 kHz, 600 kHz, and 1.0 MHz options  
No current-sense resistor required  
Power saving mode (PSM) for light loads (ADP1871 only)  
Resistor-programmable current-sense gain  
Thermal overload protection  
VIN  
C
C
ADP1870/  
ADP1871  
COMP/EN BST  
C
IN  
C
C2  
R
C
R
TOP  
V
OUT  
C
Q1  
BST  
L
V
FB  
DRVH  
SW  
OUT  
R
BOT  
C
GND  
OUT  
Q2  
C
VREG2  
VREG  
DRVL  
PGND  
R
RES  
LOAD  
C
VREG  
Short-circuit protection  
Figure 1.  
Precision enable input  
Integrated bootstrap diode for high-side drive  
Starts into a precharged load  
Small, 10-lead MSOP package  
100  
95  
90  
85  
80  
75  
70  
65  
60  
55  
50  
45  
40  
35  
30  
25  
V
= 5V (PSM)  
IN  
APPLICATIONS  
Telecom and networking systems  
Mid to high end servers  
Set-top boxes  
V
= 16.5V  
IN  
V
= 13V  
IN  
DSP core power supplies  
V
= 13V (PSM)  
IN  
T
V
= 25°C  
A
= 1.8V  
OUT  
= 300kHz  
f
SW  
V
= 16.5V (PSM)  
IN  
GENERAL DESCRIPTION  
WÜRTH INDUCTOR:  
744325120, L = 1.2µH, DCR = 1.8m  
INFINEON FETs:  
BSC042N03MS G (UPPER/LOWER)  
The ADP1870/ADP1871 are versatile current-mode, synchronous  
step-down controllers that provide superior transient response,  
optimal stability, and current-limit protection by using a constant  
on-time, pseudo-fixed frequency with a programmable current-  
limit, current-control scheme. In addition, these devices offer  
optimum performance at low duty cycles by utilizing valley  
current-mode control architecture. This allows the ADP1870/  
ADP1871 to drive all N-channel power stages to regulate output  
voltages as low as 0.6 V.  
10  
100  
1k  
10k  
100k  
LOAD CURRENT (mA)  
Figure 2. Efficiency vs. Load Current (VOUT = 1.8 V, 300 kHz)  
In addition, an internally fixed soft start period is included to limit  
input in-rush current from the input supply during startup and  
to provide reverse current protection during soft start for a pre-  
charged output. The low-side current-sense, current-gain scheme  
and integration of a boost diode, along with the PSM/forced pulse-  
width modulation (PWM) option, reduce the external part count  
and improve efficiency.  
The ADP1871 is the power saving mode (PSM) version of the  
device and is capable of pulse skipping to maintain output  
regulation while achieving improved system efficiency at light  
loads (see the Power Saving Mode (PSM) Version (ADP1871)  
section for more information).  
The ADP1870/ADP1871 operate over the −40°C to +125°C  
junction temperature range and are available in a 10-lead MSOP  
package.  
Available in three frequency options (300 kHz, 600 kHz, and  
1.0 MHz, plus the PSM option), the ADP1870/ADP1871 are well  
suited for a wide range of applications that require a single-input  
power supply range from 2.95 V to 20 V. Low voltage biasing is  
supplied via a 5 V internal LDO.  
Rev. 0  
Information furnished by Analog Devices is believed to be accurate and reliable. However, no  
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other  
rights of third parties that may result from its use. Specifications subject to change without notice. No  
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks and registeredtrademarks arethe property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.461.3113  
www.analog.com  
©2010 Analog Devices, Inc. All rights reserved.  
 

与ADP1871ARMZ-0.6-R7相关器件

型号 品牌 描述 获取价格 数据表
ADP1871ARMZ-1.0-R7 ADI Synchronous Buck Controller with Constant On-Time and Valley Current Mode

获取价格

ADP1872 ADI Synchronous Current-Mode with Constant On-time, PWM Buck

获取价格

ADP1872ARMZ-0.6-R7 ADI Synchronous Current-Mode Buck Controller with Constant On-time and 0.6 V Reference Voltage

获取价格

ADP1873 ADI 同步电流模式降压控制器,具有恒定导通时间、0.6 V基准电压和省电模式

获取价格

ADP1873ARMZ-0.3-R7 ADI Synchronous Current-Mode Buck Controller with Constant On-time, 0.6 V Reference Voltage, a

获取价格

ADP1873ARMZ-0.6-R7 ADI Synchronous Current-Mode Buck Controller with Constant On-time, 0.6 V Reference Voltage, a

获取价格