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MAX1572ETCXYZ PDF预览

MAX1572ETCXYZ

更新时间: 2024-01-21 11:53:42
品牌 Logo 应用领域
美信 - MAXIM 转换器
页数 文件大小 规格书
11页 333K
描述
Switching Regulator, Current-mode, 2.1A, 2200kHz Switching Freq-Max, BICMOS, 4 X 4 MM, 0.80 MM HEIGHT, MO-220WGGB, TQFN-12

MAX1572ETCXYZ 技术参数

生命周期:Active零件包装代码:QFN
包装说明:4 X 4 MM, 0.80 MM HEIGHT, MO-220WGGB, TQFN-12针数:12
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.73
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:2.6 V标称输入电压:3.6 V
JESD-30 代码:S-XQCC-N12JESD-609代码:e0
长度:4 mm功能数量:1
端子数量:12最高工作温度:85 °C
最低工作温度:-40 °C最大输出电流:2.1 A
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
认证状态:Not Qualified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:2200 kHz技术:BICMOS
温度等级:INDUSTRIAL端子面层:TIN LEAD
端子形式:NO LEAD端子节距:0.8 mm
端子位置:QUAD宽度:4 mm
Base Number Matches:1

MAX1572ETCXYZ 数据手册

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19-2837; Rev 0; 4/03  
800mA, 2MHz, PWM DC-to-DC  
Step-Down Converter with RESET  
General Description  
Features  
Up to 97% Efficiency  
The MAX1572 is a fixed-frequency, synchronous step-  
down DC-to-DC converter to power low-voltage micro-  
processor/DSP cores in portable equipment requiring  
high efficiency in a limited PC board area. The features  
are optimized for high efficiency over a wide load range,  
small external component size, low output ripple, and  
excellent transient response. The input supply voltage  
range is from 2.6V to 5.5V, while the output is internally  
fixed from 0.75V to 2.5V in 50mV increments with a  
guaranteed output current of 800mA. The high 2MHz  
switching allows tiny low-cost capacitors and a low-pro-  
file inductor, while the power-saving pulse-group mode  
reduces quiescent current to 48µA (typ) with light loads.  
To reduce noise and RF interference, the converter can  
be configured to provide forced-PWM operation.  
2MHz PWM Switching  
800mA Guaranteed Output Current  
Low 48µA Quiescent Current  
Power-Saving Modes: Pulse-Group, Pulse-Skip,  
Forced-PWM Mode  
0.75V to 2.5V Preset Output Range  
(in 50mV Increments)  
Voltage-Positioning Load Transients  
5mV  
Output Ripple  
P-P  
Tiny 2.2µH Inductor  
10µF Ceramic Output Capacitor  
Low 0.1µA Shutdown Current  
No External Schottky Diode Required  
Soft-Start with Zero Inrush Current  
170ms (min) RESET Output  
Small 12-Pin, 4mm x 4mm Thin QFN Package  
Ordering Information  
The MAX1572 includes a low on-resistance internal  
MOSFET switch and synchronous rectifier to maximize  
efficiency and minimize external component count. No  
external diode is needed. Other features include soft-  
start to eliminate inrush current at startup and a 170ms  
(min) RESET output to provide power-on/undervoltage  
reset. The MAX1572 is available in a 12-pin, 4mm x  
4mm thin QFN package with exposed paddle.  
PART  
TEMP RANGE  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
MAX1572ETC075  
MAX1572ETC130  
MAX1572ETC150  
MAX1572ETC180  
MAX1572ETC250  
MAX1572ETCxyz*  
12 Thin QFN-EP**  
12 Thin QFN-EP**  
12 Thin QFN-EP**  
12 Thin QFN-EP**  
12 Thin QFN-EP**  
12 Thin QFN-EP**  
Applications  
Cell Phones and Smart Phones  
PDAs, Palmtops, and Notebook Computers  
MP3 and DVD Players  
Digital Cameras and Camcorders  
PCMCIA Cards  
Hand-Held Instruments  
*xyz is for the output voltage (e.g., MAX1572ETC165 has a  
1.65V output). Minimum order quantity is 2500.  
**EP = Exposed paddle.  
Selector Guide appears at end of data sheet.  
Typical Operating Circuit  
Pin Configuration  
OUTPUT  
0.75V TO 2.5V  
800mA  
TOP VIEW  
INPUT  
2.6V TO 5.5V  
2.2µH  
BATT  
LX  
9
1
8
7
3
EN1  
EN2  
GND  
OUT  
10  
11  
12  
6
5
4
MAX1572  
PGND  
ABATT  
GND  
MAX1572  
ABATT  
EN1  
EN2  
SS  
OUT  
RESET  
MODE  
SELECT  
2
GND  
4mm x 4mm  
THIN QFN  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  

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