Datasheet > MAX6474UT27BD1-T

MAX6474UT27BD1-T

更新时间： 2024-11-19 09:15:39

品牌	Logo	应用领域
美信 - MAXIM		信息通信管理光电二极管
页数	文件大小	规格书
20页	522K
描述
Fixed/Adjustable Positive LDO Regulator, 1.229V Min, 5V Max, BICMOS, PDSO6, SOT-23, 6 PIN

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MAX6474UT27BD1-T 数据手册

19-2532; Rev 6; 2/11

300mA LDO Linear Regulators with

Internal Microprocessor Reset Circuit

9–MAX684

General Description

Features

o 3 ꢀ 3 UCSP, 6-Pin SOT23, and 8-Pin TDFN

The MAX6469–MAX6484 are low-dropout linear regula-

tors with a fully integrated microprocessor reset circuit.

Each is available with preset output voltages from +1.5V

to +3.3V in 100mV increments and delivers up to 300mA

of load current. These devices consume only 82µA of

supply current. The low supply current, low dropout volt-

age, and integrated reset functionality make these

devices ideal for battery-powered portable equipment.

Packages

o Preset +1.5V to +3.3V Output (100mV Increments)

o SET Pin for Adjustable Output Voltage

o 75µV

LDO Output Voltage Noise

RMS

(MAX6477–MAX6484)

2.0% Accuracy Over Temperature

o Guaranteed 300mA Output Current

o Low Dropout Voltage

The MAX6469–MAX6484 include a reset output that indi-

cates when the regulator output drops below standard

microprocessor supply tolerances (-7.5% or -12.5% of

nominal output voltage). This eliminates the need for an

external microprocessor supervisor, while ensuring that

supply voltages and clock oscillators have stabilized

before processor activity is enabled. Push-pull and open-

drain active-low reset outputs are available, with reset

timeout periods of 2.5ms, 20ms, 150ms, or 1200ms (min).

55mV at 150mA

114mV at 300mA

o 82µA Supply Current, 0.1µA Shutdown Current

o Input Reverse Current, Thermal and Short-Circuit

Protection

o Microprocessor Reset with Four Timeout Options

o Push-Pull or Open-Drain RESET

o Manual Reset Input

The MAX6469/MAX6470/MAX6473–MAX6478/MAX6481–

MAX6484 also have a shutdown feature that reduces the

supply current to 0.1µA (typ). The MAX6471–MAX6474/

MAX6479–MAX6482 offer a manual reset input to assert a

microprocessor reset while the regulator output is within

specification. The MAX6475/MAX6476/MAX6483/

MAX6484 feature a remote feedback sense pin for use

with an external NPN transistor for higher-current applica-

tions. The MAX6469–MAX6476 are available in 6-pin

SOT23 and 8-pin TDFN packages. The MAX6477–

MAX6484 are available in a 3 × 3 chip-scale package

(UCSP™). All devices are specified for operation from

-40°C to +85°C.

o Remote Feedback Sense

Ordering Information

PIN-

PACKAGE

PART*

TEMP RANGE

MAX6469UT_ _ _D_-T

MAX6469TA_ _ _D_-T**

MAX6470UT_ _ _D_-T

MAX6470TA_ _ _D_-T**

-40°C to +85°C

6 SOT23-6

8 TDFN-EP***

6 SOT23-6

8 TDFN-EP***

Ordering Information continued at end of data sheet.

*Devices are also available in a lead(Pb)-free/RoHS-compliant

packages. Specify lead(Pb)-free by substituting a +T instead of

a -T when ordering.

**Future product—contact factory for availability.

***EP = Exposed pad.

Applications

Handheld Instruments (PDAs, Palmtops)

PCMCIA Cards/USB Devices

Cellular/Cordless Telephones

CD/DVD Drives

Note: The first “_ _” are placeholders for the output voltage lev-

els of the devices. Desired output voltages are set by the suffix

found in the Output Voltage Suffix Guide (Table 1). The third “_”

is a placeholder for the reset threshold accuracy. Desired reset

threshold accuracy is set by the suffix found in the Reset

Threshold Accuracy Guide (Table 2). The “_” following the D is

a placeholder for the reset timeout delay time. Desired reset

timeout delay time is set by the suffix found in the Reset

Timeout Delay Guide (Table 3). For example, the

Notebook Computers

Digital Cameras

Bluetooth Modules/Wireless LAN

MAX6481BL30BD4-T has a 3.0V output voltage, 12.5% reset

threshold tolerance, and a 1200ms (min) reset timeout delay.

Sample stock is generally available on standard versions only

(Table 4). Standard versions require a minimum order incre-

ment of 2.5k units. Nonstandard versions must be ordered in

10k-unit increments. Contact factory for availability.

UCSP is a trademark of Maxim Integrated Products, Inc.

Pin Configurations appear at end of data sheet.

Typical Operating Circuits appear at end of data sheet.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...20

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与MAX6474UT27BD1-T相关器件

型号	品牌	获取价格	描述	数据表
MAX6474UT27BD2	MAXIM	获取价格	Fixed/Adjustable Positive LDO Regulator, 1.229V Min, 5V Max, BICMOS, PDSO6, MO-178AB, SOT-
MAX6474UT27BD2-T	MAXIM	获取价格	300mA LDO Linear Regulators with Internal Microprocessor Reset Circuit
MAX6474UT27BD3-T	MAXIM	获取价格	300mA LDO Linear Regulators with Internal Microprocessor Reset Circuit
MAX6474UT27BD4	MAXIM	获取价格	Fixed/Adjustable Positive LDO Regulator, 1.229V Min, 5V Max, BICMOS, PDSO6, MO-178AB, SOT-
MAX6474UT285AD1-T	MAXIM	获取价格	300mA LDO Linear Regulators with Internal Microprocessor Reset Circuit
MAX6474UT285AD2-T	MAXIM	获取价格	300mA LDO Linear Regulators with Internal Microprocessor Reset Circuit
MAX6474UT285AD3	MAXIM	获取价格	Fixed/Adjustable Positive LDO Regulator, 1.229V Min, 5V Max, BICMOS, PDSO6, MO-178AB, SOT-
MAX6474UT285AD3-T	MAXIM	获取价格	300mA LDO Linear Regulators with Internal Microprocessor Reset Circuit
MAX6474UT285AD4-T	MAXIM	获取价格	300mA LDO Linear Regulators with Internal Microprocessor Reset Circuit
MAX6474UT285BD1-T	MAXIM	获取价格	300mA LDO Linear Regulators with Internal Microprocessor Reset Circuit

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