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MAX6349SPUT+

更新时间: 2024-10-27 13:01:07
品牌 Logo 应用领域
美信 - MAXIM 稳压器微处理器复位电路
页数 文件大小 规格书
11页 238K
描述
Fixed/Adjustable Positive LDO Regulator,

MAX6349SPUT+ 技术参数

是否Rohs认证:符合生命周期:Active
包装说明:,Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
Factory Lead Time:12 weeks风险等级:5.67
Is Samacsys:NJESD-609代码:e3
调节器类型:FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR端子面层:Matte Tin (Sn)
Base Number Matches:1

MAX6349SPUT+ 数据手册

 浏览型号MAX6349SPUT+的Datasheet PDF文件第2页浏览型号MAX6349SPUT+的Datasheet PDF文件第3页浏览型号MAX6349SPUT+的Datasheet PDF文件第4页浏览型号MAX6349SPUT+的Datasheet PDF文件第5页浏览型号MAX6349SPUT+的Datasheet PDF文件第6页浏览型号MAX6349SPUT+的Datasheet PDF文件第7页 
19-1889; Rev 2; 4/01  
150mA, SOT23, Low-Dropout Linear Regulators  
with Internal Microprocessor Reset Circuit  
General Description  
Features  
The MAX6329/MAX6349 are low-dropout, micropower  
linear voltage regulators with integrated microproces-  
sor reset circuits. Each is available with preset +3.3V,  
+2.5V, +1.8V, or adjustable output voltages and can  
deliver up to 150mA load current. Employing internal P-  
channel MOSFET pass transistors, the devices con-  
sume only 25µA supply current, independent of the  
device load. The low supply current, low dropout volt-  
age, and integrated reset functionality make these  
devices ideal for battery powered portable equipment.  
o Preset +3.3V/+2.5V/+1.8V or Adjustable Regulator  
Output  
o
3.ꢀ0 Regulator Aꢁꢁuraꢁc Oꢂer tꢃe ꢄpeꢁꢅied  
Operatꢅng Range  
o 25µA ꢄupplc Current  
o Low 18ꢀmV Dropout at 1ꢀꢀmA Load  
o ꢄmall Output Capaꢁꢅtor (1µF mꢅn ꢁeramꢅꢁ or  
tantalum)  
The MAX6329/MAX6349 include an internal reset circuit  
that indicates when the regulator output drops below  
standard microprocessor supply tolerances (-5% or  
-10%). The reset output remains asserted for 100ms  
(min) after the regulator output exceeds the selected  
reset threshold, ensuring that supply voltages and clock  
oscillators have stabilized before processor activity is  
enabled. Reset outputs are available in push-pull (active-  
low or -high) and open-drain (active-low) options. The  
internal reset circuit replaces external microprocessor  
supervisors or RC-based reset time delays.  
o Zero Reꢂerse Leakage Current  
o Tꢃermal and ꢄꢃort-Cꢅrꢁuꢅt Proteꢁtꢅon  
o Integrated Mꢅꢁroproꢁessor Reset Cꢅrꢁuꢅt wꢅtꢃ  
1ꢀꢀms (mꢅn) Tꢅmeout  
o Open-Draꢅn and Pusꢃ-Pull Reset Outputs  
o Regulator ꢄꢃutdown Input (MAX6329) or Manual  
Reset Input (MAX6349)  
o 6-Pꢅn ꢄOT23 Paꢁkage  
The MAX6329/MAX6349 are optimized for use with a  
1µF (min) output capacitor. The regulator output volt-  
age is adjustable with an external resistor-divider net-  
work at SET (reset threshold voltages track the desired  
output voltage). Each device includes thermal shut-  
down protection, output short-circuit protection, and  
reverse leakage protection. The MAX6329 includes a  
shutdown feature to reduce regulator current below  
1µA (max) and the MAX6349 offers a manual reset  
input to assert a microprocessor reset while the regula-  
tor output is within specification.  
Ordering Information  
PIN-  
PACKAGE  
PART  
TEMP. RANGE  
MAX6329_ _ UT-T  
MAX6349_ _ UT-T  
0°C to +85°C  
0°C to +85°C  
6 SOT23-6  
6 SOT23-6  
These parts offer a choice of regulator/reset voltages and reset  
outputs. From the Selector Guide, insert the desired suffix let-  
ters into the blanks to complete the part number. Each device  
is available in nine standard versions. Sample stock is general-  
ly held on standard versions only (see Standard Versions  
table). Standard versions have an order increment requirement  
of 2500 pieces. Nonstandard versions have an order increment  
requirement of 10,000 pieces. Contact factory for availability of  
nonstandard versions.  
________________________Applications  
Hand-Held Instruments  
Electronic Planners  
Palm Top Computers  
PCMCIA Cards  
Pin Configuration  
USB Devices  
TOP VIEW  
Cellular Telephones  
Cordless Telephones  
Modems  
IN  
GND  
1
2
3
6
5
4
OUT  
MAX6329/  
MAX6349  
SET  
Selector Guide appears at end of data sheet.  
(MR) SHDN  
RESET/RESET  
Typical Operating Circuit appears at end of data sheet.  
ꢄOT23-6  
( ) ARE FOR MAX6349 ONLY.  
________________________________________________________________ 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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