Datasheet > MAX1589ETT150+T

MAX1589ETT150+T

更新时间： 2024-01-05 13:30:20

品牌	Logo	应用领域
罗彻斯特 - ROCHESTER		信息通信管理输出元件调节器
页数	文件大小	规格书
18页	1483K
描述
1.5V FIXED POSITIVE LDO REGULATOR, 0.35V DROPOUT, DSO6, 3 X 3 MM, 0.80 MM PITCH, ROHS COMPLIANT, MO229WEEA, TDFN-6

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技术参数
数据手册

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MAX1589ETT150+T 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	DFN
包装说明：	3 X 3 MM, 0.80 MM PITCH, ROHS COMPLIANT, MO229WEEA, TDFN-6	针数：	6
Reach Compliance Code：	unknown	风险等级：	5.66
最大回动电压 1：	0.35 V	最大输入电压：	3.6 V
最小输入电压：	1.62 V	JESD-30 代码：	S-XDSO-N6
JESD-609代码：	e3	长度：	3 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	6	工作温度TJ-Max：	150 °C
最大输出电流 1：	0.5 A	最大输出电压 1：	1.5225 V
最小输出电压 1：	1.4775 V	标称输出电压 1：	1.5 V
封装主体材料：	UNSPECIFIED	封装代码：	HVSON
封装形状：	SQUARE	封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：	260	调节器类型：	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度：	0.8 mm	表面贴装：	YES
技术：	BICMOS	端子面层：	MATTE TIN
端子形式：	NO LEAD	端子节距：	0.95 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	3 mm	Base Number Matches：	1

MAX1589ETT150+T 数据手册

Low-Input-Voltage, 500mA LDO Regulator

RESET

with

in SOT and TDFN

Pin Description

PART

NAME

FUNCTION

SOT23

TDFN

Regulator Input. Supply voltage can range from +1.62V to +3.6V. Bypass IN with at least a

1µF ceramic capacitor to GND (see the Capacitor Selection and Regulator Stability

section).

Ground. GND also functions as a heatsink. Solder GND to a large pad or circuit-board

ground plane to maximize SOT23 power dissipation.

—

GND

Ground

Active-Low Shutdown Input. A logic low reduces supply current to below 1µA. Connect to

IN or logic high for normal operation.

SHDN

Active-Low, Open-Drain Reset Output. RESET rises 100ms after the output has achieved

RESET

regulation. RESET falls immediately if V

drops below 82.5% of its nominal voltage, or if

OUT

the MAX1589 is shut down.

I.C.

Internally Connected. Leave floating or connect to GND.

Regulator Output. Sources up to 500mA. Bypass with a 4.7µF low-ESR ceramic capacitor

to GND.

OUT

Exposed

Pad

Ground. EP also functions as a heatsink. Solder EP to a large pad or circuit-board ground

plane to maximize TDFN power dissipation.

—

MAX1589 does not suffer from these problems and

consumes only 90µA (typ) of quiescent current under

heavy loads, as well as in dropout.

Detailed Description

The MAX1589 is a low-dropout, low-quiescent-current,

high-accuracy linear regulator designed primarily for

battery-powered applications. The device supplies

loads up to 500mA and is available with preset output

voltages from +0.75V to +3.0V. As illustrated in Figure 1,

the MAX1589 contains a reference, an error amplifier, a

P-channel pass transistor, an internal feedback voltage-

divider, and a power-good comparator.

Shutdown

Pull SHDN low to enter shutdown. During shutdown, the

output is disconnected from the input, an internal 1.5kΩ

resistor pulls OUT to GND, RESET is actively pulled

low, and supply current drops below 1µA.

RESET

Output

The error amplifier compares the reference with the

feedback voltage and amplifies the difference. If the

feedback voltage is lower than the reference voltage,

the pass-transistor gate is pulled lower, allowing more

current to pass to the output and increasing the output

voltage. If the feedback voltage is too high, the pass-

transistor gate is pulled up, allowing less current to

pass to the output.

The MAX1589’s microprocessor (µP) supervisory cir-

cuitry asserts a guaranteed logic-low reset during

power-up, power-down, and brownout conditions down

to +1V. RESET asserts when V

is below the reset

OUT

threshold and remains asserted for at least 70ms (t

)

after V

rises above the reset threshold.

OUT

Current Limit

The MAX1589 monitors and controls the pass transis-

tor’s gate voltage, limiting the output current to 850mA

(typ). If the output current exceeds I , the MAX1589

LIM

output voltage drops.

Internal P-Channel Pass Transistor

The MAX1589 features a 0.33Ω (R

) P-channel

DS(ON)

MOSFET pass transistor. Unlike similar designs using

PNP pass transistors, P-channel MOSFETs require no

base drive, which reduces quiescent current. PNP-

based regulators also waste considerable current in

dropout when the pass transistor saturates and use

high base-drive currents under large loads. The

Thermal-Overload Protection

Thermal-overload protection limits total power dissipa-

tion in the MAX1589. When the junction temperature

exceeds +165°C, a thermal sensor turns off the pass

_______________________________________________________________________________________

1...4 5 678 9 10...18

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与MAX1589ETT150+T相关器件

型号	品牌	描述	获取价格	数据表
MAX1589ETT150-T	MAXIM	Fixed Positive LDO Regulator, 1.5V, 0.35V Dropout, BICMOS, 3 X 3 MM, 0.80 MM PITCH, MO229W	获取价格
MAX1589ETT180	MAXIM	Low-Input-Voltage, 500mA LDO Regulator with RESETin SOT and TDFN	获取价格
MAX1589ETT180+	MAXIM	暂无描述	获取价格
MAX1589ETT180+T	MAXIM	暂无描述	获取价格
MAX1589ETT180-T	MAXIM	Fixed Positive LDO Regulator, 1.8V, 0.35V Dropout, BICMOS, 3 X 3 MM, 0.80 MM PITCH, MO229W	获取价格
MAX1589ETT250	MAXIM	Low-Input-Voltage, 500mA LDO Regulator with RESETin SOT and TDFN	获取价格

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