MAX8559 查看數據表（PDF） - Maxim Integrated

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MAX8559

Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN

Maxim Integrated 

Dual, 300mA, Low-Noise Linear Regulator

with Independent Shutdown in UCSP or TDFN

ABSOLUTE MAXIMUM RATINGS

INA, INB, SHDNA, SHDNB, BP to GND ...................-0.3V to +7V

INA to INB..............................................................-0.3V to +0.3V

OUTA, OUTB to GND ..................................-0.3V to (VIN + 0.3V)

Output Short-Circuit Duration.....................................Continuous

Continuous Power Dissipation (TA = +70°C)

8-Bump UCSP (derate 4.7mW/°C above +70°C)..........379mW

8-Pin TDFN (derate 24.4mW/°C above +70°C) ..........1951mW

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

8-Pin TDFN Lead Temperature (soldering, 10s)..............+300°C

8-Bump UCSP Solder Profile...........................................(Note 1)

Note 1: For UCSP solder profile information, please refer to the application note APP_1891 on the Maxim website, www.maxim-ic.com.

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

(VIN = 3.8V, SHDNA = SHDNB = IN_, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

Input Voltage

VIN

2.5

Undervoltage-Lockout Threshold

Output Voltage Accuracy

VUVLO

VIN rising, hysteresis is 40mV (typ)

TA = +25°C, IOUTA = IOUTB = 1mA

TA = -40°C to +85°C, IOUTA = IOUTB = 1mA

TA = -40°C to +85°C, IOUTA or IOUTB =

0.1mA to 300mA

2.15

-1

-2

-3

TYP

2.35

MAX

6.5

2.45

+1

+2

+3

UNITS

V

V

%

Maximum Output Current

Output Current Limit

Ground Current

Dropout Voltage

(Note 2)

Line Regulation

Output Voltage Noise

IOUT_

ILIM_

IQ

VOUT_ -

VIN_

ΔVLNR

No load

No load, one LDO shutdown

IOUTA = IOUTB = 100mA

IOUT_ = 1mA

IOUT_ = 100mA

VIN_ = (VOUT_ + 0.1V) to 6.5V, IOUT_ = 1mA

100Hz to 100kHz, COUT_ = 10µF,

IOUT_ = 1mA, CBP = 0.01µF

100Hz to 100kHz, COUT_ = 10µF,

IOUT_ = 1mA, CBP = not installed

300

310

-0.15

mA

550 920

mA

180 290

115

µA

220

0.6

mV

60

120

0

+0.15 %/V

32

µVRMS

254

Power-Supply Ripple Rejection

PSRR

VIN_ = VOUT_ + 1V,

CBP = 0.01µF,

COUT_ = 2.2µF,

IOUT_ = 50mA

10kHz

100kHz

70

dB

54

SHUTDOWN

Shutdown Supply Current

SHDN Input Threshold

ISHDN SHDN_ = 0V

TA = +25°C

TA = -40°C to +85°C

0.01

1

µA

0.1

VIH

Input high voltage

VIL

Input low voltage

1.6

V

0.4

2 _______________________________________________________________________________________

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