Datasheet > MAX38641BELT+

MAX38641BELT+

更新时间： 2024-02-29 00:15:24

阅读下载

中文翻译

获取价格

如果您发现信息不准确，欢迎纠错

MAX38641BELT+ 技术参数

MAX38640/1/2/3/A/B

Tiny 1.8V - 5.5V Input, 330nA I , 700mA

nanoPower Buck Converter

Detailed Description

MAX38640/1/2/3 A/B are ultra-low IQ (330nA) buck converters that step-down from 1.8V to 5.5V to wide range of output

voltages between 0.5V to 5V. The output voltage is either programmable on MAX3864xA versions using an external

resistor or fixed for MAX3864xB versions. The external R

startup for MAX3864xA versions.

resistor on the RSEL pin programs the output voltage upon

SEL

The buck converter automatically switches between ultra-low-power mode (ULPM), low-power mode (LPM), and high-

power mode (HPM) to better service the load, depending on the load current. The buck converter overregulates in ultra-

low-power mode to allow the output capacitor to handle the transient load currents. The device has 90% duty cycle

limitation.

Active discharge resistor in MAX38640/MAX38641/MAX38643 pulls OUT to ground when the part is in shutdown. Active

discharge has been strategically omitted for MAX38642 to preserve the charge on the output capacitor in shutdown.

Harvesting applications where the output is connected to a super capacitor can take advantage of reverse-current

blocking feature to preserve the charge on the output capacitor even if the input were to fall below the output in shutdown.

Applications where two MAX38642 buck converters are connected in parallel to the drive the load can have the input of

one of the buck converters to go to 0V in shutdown without dragging the output down or loading the other buck.

www.maximintegrated.com

Maxim Integrated | 10

1...7 8 91011 12 13...15

中文翻译

下载PDF

型号	品牌	获取价格	描述	数据表
MAX38641BENT+	MAXIM	获取价格	Switching Regulator,
MAX38642	ADI	获取价格	微小尺寸、1.8V–5.5V输入、330nA IQ、700mA nanoPower降压型转
MAX38642AENT+	MAXIM	获取价格	Switching Regulator,
MAX38642BELT+	MAXIM	获取价格	Switching Regulator,
MAX38643	ADI	获取价格	微小尺寸、1.8V–5.5V输入、330nA IQ、700mA nanoPower降压型转
MAX38647B	ADI	获取价格	1.8V至5.5V输入、440nA IQ、175mA小型nanoPower降压转换器，具有
MAX3864E/D	MAXIM	获取价格	2.5Gbps, +3V to +5.5V, Wide Dynamic Range Transimpedance Preamplifier
MAX3864ESA	MAXIM	获取价格	2.5Gbps, +3V to +5.5V, Wide Dynamic Range Transimpedance Preamplifier
MAX3864ESA-T	MAXIM	获取价格	Support Circuit, 1-Func, Bipolar, PDSO8, 0.150 INCH, MS-012AA, SOIC-8
MAX3864EVKIT	MAXIM	获取价格	Evaluation Kit for the MAX3864