Datasheet > MAX1572ETC250-T

MAX1572ETC250-T

更新时间： 2024-11-15 19:50:11

品牌	Logo	应用领域
美信 - MAXIM		信息通信管理开关
页数	文件大小	规格书
11页	366K
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

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MAX1572ETC250-T 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	零件包装代码：	QFN
包装说明：	HVQCCN, LCC12,.16SQ,32	针数：	12
Reach Compliance Code：	not_compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.68
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-N12	JESD-609代码：	e0
长度：	4 mm	湿度敏感等级：	1
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	封装等效代码：	LCC12,.16SQ,32
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）：	245	认证状态：	Not Qualified
座面最大高度：	0.8 mm	子类别：	Switching Regulator or Controllers
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 (Sn85Pb15)
端子形式：	NO LEAD	端子节距：	0.8 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 mm	Base Number Matches：	1

MAX1572ETC250-T 数据手册

19-2837; Rev 1; 11/04

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

PIN-PACKAGE

MAX1572ETC075

MAX1572ETC130

MAX1572ETC150

MAX1572ETC180

MAX1572ETC250

MAX1572ETCxyz*

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

EN1

EN2

GND

OUT

MAX1572

PGND

ABATT

GND

MAX1572

ABATT

EN1

EN2

OUT

MODE

SELECT

RESET

GND

4mm x 4mm

THIN QFN

________________________________________________________________ Maxim Integrated Products

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.

12 3 4 5 6 7...11

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与MAX1572ETC250-T相关器件

型号	品牌	获取价格	描述	数据表
MAX1572ETCXYZ	MAXIM	获取价格	Switching Regulator, Current-mode, 2.1A, 2200kHz Switching Freq-Max, BICMOS, 4 X 4 MM, 0.8
MAX1572EVKIT	MAXIM	获取价格	Evaluation Kit for the MAX1572
MAX1573	MAXIM	获取价格	MAX1573 Evaluation Kit
MAX1573	ADI	获取价格	白光LED、1倍/1.5倍电荷泵，UCSP封装和薄型QFN封装
MAX1573EBE	ROCHESTER	获取价格	LED DISPLAY DRIVER, PBGA14, 2.10 X 2.10 MM, 0.60 MM HEIGHT, UCSP-16/14
MAX1573EBE+T	MAXIM	获取价格	LED Driver, 4-Segment, BICMOS, PBGA14, 2.10 X 2.10 MM, 0.60 MM HEIGHT, UCSP-16/14
MAX1573EBE-T	MAXIM	获取价格	LED Driver, 4-Segment, BICMOS, PBGA14, 2.10 X 2.10 MM, 0.60 MM HEIGHT, UCSP-16/14
MAX1573EBE-T	ROCHESTER	获取价格	LED DISPLAY DRIVER, PBGA14, 2.10 X 2.10 MM, 0.60 MM HEIGHT, UCSP-16/14
MAX1573ETE	ROCHESTER	获取价格	LED DISPLAY DRIVER, QCC16, 4 X 4 MM, 0.80 MM HEIGHT, MO-220WGGC, TQFN-16
MAX1573ETE	MAXIM	获取价格	LED Driver, 4-Segment, BICMOS, 4 X 4 MM, 0.80 MM HEIGHT, MO-220WGGC, TQFN-16

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