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ADP2118ACPZ-3.3-R7 PDF预览

ADP2118ACPZ-3.3-R7

更新时间: 2024-02-07 09:21:57
品牌 Logo 应用领域
亚德诺 - ADI 转换器稳压器开关式稳压器或控制器电源电路开关式控制器PC
页数 文件大小 规格书
24页 1228K
描述
3 A, 1.2 MHz/600 kHz High Efficiency Synchronous Step-Down DC-to-DC Converter

ADP2118ACPZ-3.3-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:QFN
包装说明:HVQCCN,针数:16
Reach Compliance Code:unknown风险等级:5.66
其他特性:PFM CONTROL TECHNIQUE ALSO POSSIBLE模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:5.5 V最小输入电压:2.3 V
标称输入电压:3.3 VJESD-30 代码:S-XQCC-N16
JESD-609代码:e3长度:4 mm
湿度敏感等级:1功能数量:1
端子数量:16最高工作温度:125 °C
最低工作温度:-40 °C最大输出电流:6.4 A
标称输出电压:3.3 V封装主体材料:UNSPECIFIED
封装代码:HVQCCN封装形状:SQUARE
封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度(摄氏度):225
座面最大高度:0.8 mm表面贴装:YES
切换器配置:BUCK最大切换频率:1400 kHz
温度等级:AUTOMOTIVE端子面层:MATTE TIN
端子形式:NO LEAD端子节距:0.65 mm
端子位置:QUAD处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:4 mmBase Number Matches:1

ADP2118ACPZ-3.3-R7 数据手册

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3 A, 1.2 MHz/600 kHz High Efficiency  
Synchronous Step-Down DC-to-DC Converter  
ADP2118  
FEATURES  
GENERAL DESCRIPTION  
3 A continuous output current  
75 mΩ and 40 mΩ integrated FET  
1.5ꢀ output accuracy  
Input voltage range from 2.3 V to 5.5 V  
Output voltage from 0.6 V to VIN  
600 kHz or 1.2 MHz fixed switching frequency  
Synchronizable between 600 kHz and 1.4 MHz  
Selectable synchronize phase shift: 0o or 180o  
Selectable PWM or PFM mode operation  
Current mode architecture  
Precision enable input  
Power good output  
Voltage tracking input  
Integrated soft start  
Internal compensation  
Starts up into a precharged output  
UVLO, OVP, OCP, and thermal shutdown  
The ADP2118 is a low quiescent current, synchronous, step-down,  
dc-to-dc converter in a compact 4mm × 4mm LFCSP_WQ  
package. It uses a current mode, constant frequency pulse-width  
modulation (PWM) control scheme for excellent stability and  
transient response. Under light loads, the ADP2118 can be  
configured to operate in pulse frequency modulation (PFM)  
mode that reduces switching frequency to save power.  
The ADP2118 runs from input voltages of 2.3 V to 5.5 V. The  
output voltage of the ADP2118ACPZ-R7 is adjustable from  
0.6 V to input voltage (VIN), and the ADP2118ACPZ-x.x-R7 are  
available in preset output voltage options of 3.3 V, 2.5 V, 1.8 V,  
1.5 V, 1.2 V, and 1.0 V. The ADP2118 requires minimal external  
parts and provides a high efficiency solution with its integrated  
power switch, synchronous rectifier, and internal compensation.  
The IC draws less than 3 μA from the input source when it is  
disabled. Other key features include undervoltage lockout  
(UVLO), integrated soft start to limit inrush current at startup,  
Available in 16-lead 4mm × 4mm LFCSP_WQ package  
overvoltage protection (OVP), overcurrent protection (OCP),  
and thermal shutdown (TSD).  
APPLICATIONS  
DSP/FPGA/ASIC core power  
Telecommunication/networking equipment  
PDAs and palmtop computers  
Audio/video consumer electronics  
C1  
0.1µF  
R1  
10  
V
IN  
5V  
R2  
100  
C
IN  
10kΩ  
100µF  
X5R,  
6.3V  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
PFM OPERATION  
16  
15  
14  
13  
L
1µH  
1
2
3
4
12  
11  
10  
9
SYNC/MODE  
FREQ  
PVIN  
SW  
V
3.3V  
3A  
OUT  
C
OUT  
ADP2118  
100µF  
X5R,  
6.3V  
TRK  
FB  
SW  
FPWM OPERATION  
SW  
5
6
7
8
V
V
= 5V  
fSO=UT1.2MHz  
IN  
= 3.3V  
R
R
BOT  
TOP  
2.21k10kΩ  
0.01  
0.1  
1
10  
OUTPUT CURRENT (A)  
Figure 2. Efficiency vs. Output Current  
Figure 1. Typical Applications Circuit  
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  
©2009 Analog Devices, Inc. All rights reserved.  
 
 
 

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