MAX750A：可调、PWM、降压型稳压器 _ BDTIC 中国领先电子元器件代理商

MAX750A：可调、PWM、降压型稳压器

对于新设计推荐使用性能更好的器件：MAX887替代MAX750A，MAX1684/MAX1685替代MAX758A

The MAX750A/MAX758A are adjustable-output, CMOS, step-down, DC-DC switching regulators. The MAX758A accepts inputs from 4V to 16V and delivers 750mA, while the MAX750A accepts inputs from 4V to 11V and delivers 450mA. Typical efficiencies are 85% to 90%. Typical quiescent current is 1.7mA, or only 6µA in shutdown mode. The output does not exhibit any ripple at subharmonics of the switching frequency over its specified range. Pulse-width-modulation (PWM) current-mode control provides precise output regulation and excellent transient responses. Output voltage accuracy is guaranteed to be ±4.5% plus feedback-resistor tolerance over line, load, and temperature variations. Fixed-frequency switching and absence of subharmonic ripple allows easy filtering of output ripple and noise, as well as the use of small external components. These regulators require only a single inductor value to work in most applications, so no inductor design is necessary.

关键特性

Up to 750mA Load Currents
160kHz High-Frequency, Current-Mode PWM
85% to 96% Efficiencies
33µH or 100µH Pre-Selected Inductor Value, No Component Design Required
1.7mA Quiescent Supply Current
6µA Shutdown Supply Current
Adjustable Output Voltage
Overcurrent, Soft-Start, and Undervoltage Lockout Protection
Cycle-by-Cycle Current Limiting
8-Pin DIP/SO Packages (MAX750A)

MAX750A、MAX758A：典型工作电路

应用

蜂窝电话
计算机外设
便携式通信设备
便携式仪表

数据手册DataSheet

语言	下载文件	备注
英文	MAX750A-MAX758A.pdf	Rev 0; 10/1993

关键参数

Part Number	V_IN (V)	V_IN (V)	V_OUT1 (V)	V_OUT1 (V)	Output Adjust. Method	I_OUT1 (A)	Switch Type	DC-DC Outputs	Oper. Freq. (kHz)	Package/Pins	Budgetary Price
Part Number	min	max	min	max	Output Adjust. Method	max	Switch Type	DC-DC Outputs	Oper. Freq. (kHz)	Package/Pins	See Notes
MAX750A	4	11	1.25	11	Resistor	0.45	Internal	1	190	CDIP(N)/8 PDIP(N)/8 SOIC(N)/8	$2.39 @1k
MAX758A	4	16	1.25	16	Resistor	0.75	Internal	1	190	CDIP(N)/8 PDIP(N)/8 SOIC(W)/16	$3.38 @1k

订购型号

型号	状况	推荐替代产品	封装	温度	RoHS/无铅
MAX750AC/D	停止供货		DICE SALES,；NA引脚；DICE；	0°C至+70°C	参考数据资料
MAX750ACPA	停止供货		PDIP(N),；8引脚；79.7mm²	0°C至+70°C	RoHS/无铅：否
MAX750ACSA	停止供货	MAX750ACSA+	SOIC(N),；8引脚；30.9mm²	0°C至+70°C	RoHS/无铅：否
MAX750ACSA+	生产中		SOIC(N),；8引脚；30.9mm²	0°C至+70°C	RoHS/无铅：无铅
MAX750ACSA+T	生产中		SOIC(N),；8引脚；30.9mm²	0°C至+70°C	RoHS/无铅：无铅
MAX750ACSA-T	停止供货	MAX750ACSA+T	SOIC(N),；8引脚；30.9mm²	0°C至+70°C	RoHS/无铅：否
MAX750AEPA	停止供货		PDIP(N),；8引脚；79.7mm²	-40°C至+85°C	RoHS/无铅：否
MAX750AESA	停止供货	MAX750AESA+	SOIC(N),；8引脚；30.9mm²	-40°C至+85°C	RoHS/无铅：否
MAX750AESA+	生产中		SOIC(N),；8引脚；30.9mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX750AESA+T	生产中		SOIC(N),；8引脚；30.9mm²	-40°C至+85°C	RoHS/无铅：无铅
型号	状况	推荐替代产品	封装：类型引脚占位面积封装图编码/变更 *	温度	RoHS/无铅？
MAX750AESA-T	停止供货	MAX750AESA+T	N.SO；8引脚	-40°C至+85°C	参考数据资料
MAX750AMJA	停止供货		CDIP(N),；8引脚；82.6mm²	-55°C至+125°C	RoHS/无铅：否

MAX750A-MAX758A.pdf MAX758A

典型工作电路 MAX758A