MAX1642C/D

更新时间： 2024-11-05 22:11:35

品牌	Logo	应用领域
美信 - MAXIM		转换器
页数	文件大小	规格书
12页	131K
描述
High-Efficiency, Step-Up DC-DC Converters for 1V Inputs

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技术参数
数据手册

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MAX1642C/D 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
零件包装代码：	DIE	包装说明：	DIE,
针数：	8	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.92	其他特性：	IT ALSO HAS CONTROL TECHNIQUE OF PFM, ALSO OPERATES IN ADJUSTABLE MODE FROM 2 TO 5.2V
模拟集成电路 - 其他类型：	SWITCHING REGULATOR	控制模式：	VOLTAGE-MODE
控制技术：	PULSE FREQUENCY MODULATION	最大输入电压：	1.65 V
最小输入电压：	0.7 V	标称输入电压：	1.3 V
JESD-30 代码：	R-XUUC-N8	JESD-609代码：	e0
功能数量：	1	端子数量：	8
最高工作温度：	70 °C	最低工作温度：
最大输出电流：	1 A	标称输出电压：	3.3 V
封装主体材料：	UNSPECIFIED	封装代码：	DIE
封装形状：	RECTANGULAR	封装形式：	UNCASED CHIP
峰值回流温度（摄氏度）：	NOT SPECIFIED	认证状态：	Not Qualified
表面贴装：	YES	切换器配置：	BOOST
温度等级：	COMMERCIAL	端子面层：	TIN LEAD
端子形式：	NO LEAD	端子位置：	UPPER
处于峰值回流温度下的最长时间：	NOT SPECIFIED

MAX1642C/D 数据手册

19-1183; Rev 0; 6/97

Hig h -Effic ie n c y, S t e p -Up

DC-DC Co n ve rt e rs fo r 1 V In p u t s

2/MAX1643

_______________Ge n e ra l De s c rip t io n

____________________________Fe a t u re s

♦ Built-In Synchronous Rectifier

The MAX1642/MAX1643 are high-efficiency, low-voltage,

step-up DC-DC converters intended for devices pow-

ered by a single alkaline cell. They feature low quies-

cent supply currents and are supplied in the ultra-small

µMAX package, which is only 1.1mm high. The guaran-

teed start-up voltage is 0.88V.

♦ 0.88V Guaranteed Start-Up

♦ Ultra-Small µMAX Package: 1.1mm High

♦ 83% Efficiency

Ea c h d e vic e c ons is ts of a n inte rna l 1Ω, N-c ha nne l

MOSFET power switch; a built-in synchronous rectifier

that acts as the catch diode; an oscillator; a reference;

and pulse-frequency-modulation (PFM) control circuitry.

Both devices feature an independent undervoltage

comparator (PFI/PFO). The MAX1642 also includes a

2µA logic-controlled shutdown mode. The MAX1643

offers a dedicated low-battery detector (BATTLO) in

lieu of shutdown.

♦ 4µA Quiescent Supply Current into BATT Pin

♦ 2µA Logic-Controlled Shutdown (MAX1642)

♦ Two Undervoltage Detectors (MAX1643)

♦ 2V to 5.2V Output Range

♦ 20mA Output Current at 1.2V Input

♦ Reverse Battery Protection

The output voltage for each device is preset to 3.3V

±4%, or can be adjusted from +2V to +5.2V using only

two resistors.

______________Ord e rin g In fo rm a t io n

PART

TEMP. RANGE

0°C to +70°C

-40°C to +85°C

0°C to +70°C

-40°C to +85°C

PIN-PACKAGE

Dice*

MAX1642C/D

MAX1642EUA

MAX1643C/D

MAX1643EUA

8 µMAX

Dice*

________________________Ap p lic a t io n s

8 µMAX

Pagers

*Dice are tested at T = +25°C.

Remote Controls

Note: To order these devices shipped in tape and reel, add a -T

to the part number.

Pointing Devices

Personal Medical Monitors

Single-Cell Battery-Powered Devices

_________________P in Co n fig u ra t io n s

TOP VIEW

OUT

BATT

PFI

__________Typ ic a l Op e ra t in g Circ u it

MAX1642

µMAX

GND

PFO

SHDN

INPUT

0.88V TO 1.65V

OUTPUT

3.3V

100µH

OUT

22µF

MAX1642

BATT

OUT

BATT

PFI

SHDN

OFF

MAX1643

µMAX

PFI

GND

PFO

LOW-BATTERY

DETECTOR INPUT

LOW-BATTERY

DETECTOR OUTPUT

GND

BATTLO

PFO

________________________________________________________________ Maxim Integrated Products

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 408-737-7600 ext. 3468.

12 3 4 5 6 7...12

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与MAX1642C/D相关器件

型号	品牌	获取价格	描述	数据表
MAX1642C/D-T	MAXIM	获取价格	Switching Regulator, 1A
MAX1642C-T	MAXIM	获取价格	High-Efficiency, Step-Up DC-DC Converters for 1V Inputs
MAX1642D	MAXIM	获取价格	High-Efficiency, Step-Up DC-DC Converters for 1V Inputs
MAX1642D-T	MAXIM	获取价格	High-Efficiency, Step-Up DC-DC Converters for 1V Inputs
MAX1642EUA	MAXIM	获取价格	High-Efficiency, Step-Up DC-DC Converters for 1V Inputs
MAX1642EUA+	MAXIM	获取价格	Switching Regulator, Voltage-mode, 1A, PDSO8, 1.10 MM HEIGHT, ULTRA SMALL, UMAX-8
MAX1642EUA+T	MAXIM	获取价格	Switching Regulator, Voltage-mode, 1A, PDSO8, 1.10 MM HEIGHT, ULTRA SMALL, UMAX-8
MAX1642EUA-T	MAXIM	获取价格	High-Efficiency, Step-Up DC-DC Converters for 1V Inputs
MAX1642EVKIT	MAXIM	获取价格	330MHz.Gain of +1/Gain of +2 Closed-Loop Buffers[MAX4178/MAX4278/MAX4178EPA/MAX4178ESA/MAX
MAX1642-MAX1643	MAXIM	获取价格	High-Efficiency, Step-Up DC-DC Converters for 1V Inputs

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