MAX6469, MAX6470, MAX6471, MAX6472, MAX6473, MAX6474, MAX6475, MAX6476, MAX6477, MAX6478, MAX6479, MAX6480, MAX6481, MAX6482, MAX6483, MAX6484 300mA LDO线性稳压器，内置微处理器复位电路

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MAX6469–MAX6484是低压差线性稳压器，具有完全集成的微处理器复位电路。它们均具有+1.5V至+3.3V预置输出电压，预置间隔100mV，并可提供最高300mA的负载电流。这些器件仅消耗82µA电源电流。低电源电流、低压差和集成的复位功能使这些器件非常适合电池供电的便携式设备。

MAX6469–MAX6484包含一个复位输出，用于指示稳压器输出是否跌落至标准微处理器电源容限以下(-7.5%或-12.5%标称输出电压)，省去了外部微处理器监控电路，并保证电源电压和时钟振荡器在处理器使能之前达到稳定。这些器件提供推挽式或漏极开路、低电平有效复位输出，具有2.5ms、20ms、150ms或1200ms (最小值)超时周期。

MAX6469/MAX6470/MAX6473–MAX6478/MAX6481–MAX6484还具有关断功能，关断时电源电流降至0.1µA (典型值)。MAX6471–MAX6474/MAX6479–MAX6482提供手动复位输入，可在稳压器输出符合要求时触发微处理器复位。MAX6475/MAX6476/MAX6483/MAX6484具有远端反馈检测引脚，适合外接NPN晶体管的大电流应用。MAX6469–MAX6476采用6引脚SOT23封装和8引脚TDFN封装。MAX6477–MAX6484采用3 x 3裸片级封装(UCSP™)。所有器件均工作于-40°C至+85°C温度范围。

关键特性

应用/使用

3 x 3 UCSP、6引脚SOT23或8引脚TDFN封装
+1.5V至+3.3V预置输出电压(预置间隔100mV)
SET引脚用于调节输出电压
75µV_RMS LDO输出电压噪声(MAX6477–MAX6484)
整个工作温度范围内精度为±2.0%
保证提供300mA输出电流
低压差
- 150mA时55mV
- 300mA时114mV
82µA电源电流，0.1µA关断电流
反向输入电流保护、过热和短路防护
微处理器复位信号，具有4种超时选项
推挽式或漏极开路的/RESET输出
手动复位输入
远端反馈检测

	Bluetooth®模块/无线LAN
	CD/DVD驱动
	蜂窝电话/无绳电话
	数码相机
	手持式仪表(PDA、掌上电脑)
	笔记本电脑
	PCMCIA卡/USB设备

Key Specifications: Linear Regulators

Part Number

Regulators per Pkg.

Min. V_IN (V)

Max. V_IN (V)

Preset V_OUT (V)

Min. Adjustable V_OUT (V)

Max. Adjustable V_OUT (V)

Typ. V_DROPOUT@ Rated I_LOAD (V)

Rated I_LOAD (mA)

Max. I_CC (µA)

Low Battery/ Power Fail Output

POK/ Reset Output

POK/ Reset Output Type

Nominal POK/Reset Threshold (V)

Min. Reset Pulse Width (ms)

Watchdog

Reverse Battery Protection

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

Price^**

MAX6469

2.5

5.5

1.5 to 3.3

0.11

300

136

Reset

Push-Pull Active Low

Vout-12.5%
Vout-7.5%

1200
150
2.5
20

SOT-23/6
THIN QFN (Dual)/8

-40 to +85

$1.50 @ 1k

MAX6470

Open Drain Active Low

SOT-23/6
THIN QFN (Dual)/8

$1.50 @ 1k

MAX6471

Push-Pull Active Low

SOT-23/6
THIN QFN (Dual)/8

$1.50 @ 1k

MAX6472

Open Drain Active Low

SOT-23/6
THIN QFN (Dual)/8

$1.50 @ 1k

MAX6473

Push-Pull Active Low

SOT-23/6
THIN QFN (Dual)/8

$1.50 @ 1k

MAX6474

Open Drain Active Low

SOT-23/6
THIN QFN (Dual)/8

$1.50 @ 1k

MAX6475

1.23

Push-Pull Active Low

SOT-23/6
THIN QFN (Dual)/8

$1.50 @ 1k

MAX6476

1.23

Open Drain Active Low

SOT-23/6
THIN QFN (Dual)/8

$1.50 @ 1k

MAX6477

Push-Pull Active Low

UCSP/6

$1.50 @ 1k

MAX6478

Open Drain Active Low

UCSP/6

$1.50 @ 1k

MAX6479

Push-Pull Active Low

UCSP/6

$1.35 @ 10k

MAX6480

Open Drain Active Low

UCSP/6

$1.50 @ 1k

MAX6481

Push-Pull Active Low

UCSP/6

$1.50 @ 1k

MAX6482

Open Drain Active Low

UCSP/6

$1.50 @ 1k

MAX6483

1.23

Push-Pull Active Low

UCSP/6

$1.35 @ 10k

MAX6484

1.23

Open Drain Active Low

UCSP/6

$1.43 @ 5k

See All Linear Regulators (138)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.