MAX1726 Ver la hoja de datos (PDF) - Maxim Integrated

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MAX1726

12V, Ultra-Low IQ, Low-Dropout Linear Regulators

Maxim Integrated 

MAX1725/MAX1726

12V, Ultra-Low IQ, Low-Dropout

Linear Regulators

ABSOLUTE MAXIMUM RATINGS

IN to GND ................................................................-14V to +14V

SHDN to GND ..............................................-0.3V to (VIN + 0.3V)

(-0.3V to + 0.3V when VIN < 0V)

OUT, FB (MAX1725 only) to GND...................-0.3V to +6V when

VIN >5.7V; -0.3V to (VIN + 0.3V) when 0V <

VIN < 5.7V; -0.3V to +0.3V when VIN < 0V

OUT Continuous Current...................................................200mA

OUT Short Circuit...........................................................Indefinite

Continuous Power Dissipation (TA = +70°C)

5-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW

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

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

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

Lead Temperature (soldering, 10s) .................................+300°C

Soldering Temperature (reflow) .......................................+260°C

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.

PACKAGE THERMAL CHARACTERISTICS (Note 1)

Junction-to-Ambient Thermal Resistance (θJA)...............140°C/W

Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer

board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.

ELECTRICAL CHARACTERISTICS

(Circuit of Figure 1, VIN = VOUT + 1V, SHDN = IN, IOUT = 1mA, TA = -40°C to +85°C, unless otherwise noted. Typical values are at

TA = +25°C.) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

Input Voltage Range

Supply Current

Shutdown Supply Current

OUT Voltage Range

FB Voltage

OUT Voltage Accuracy (Note 4)

Line Regulation

VIN

IIN

IIN(SHDN)

VOUT

VFB

∆VLNR

(Note 3)

VIN = 12V

VSHDN = 0V, VIN = 12V, VOUT = 0V

MAX1725 only

MAX1725 only (Note 4)

TA = +25°C

TA = 0°C to +85°C

TA = -40°C to +85°C

VIN = 2.5V or (VOUT + 0.5V) to 12V

2.5

12

V

2

4.5

µA

0.7

2

µA

1.5

5

V

1.245

V

-1.5

1.5

-2

+2

%

-3

+3

0.01

0.3

%/V

Load Regulation

∆VLDR

IOUT = 1mA to 20mA, VIN = (VOUT + 1V)

or 3V (min)

0.015 0.15 %/mA

Maximum OUT Current

IOUT VIN = (VOUT + 1V) or 3V (Note 5)

20

80

mA

Dropout Voltage (Note 5)

∆VDO

IOUT = 20mA for VOUT ≥ 2.5V, IOUT = 10mA for

VOUT < 2.5V, not applicable for VOUT < 1.9V

300

600

mV

Foldback Current Limit

SHDN Input Threshold

SHDN Input Bias Current

FB Input Bias Current

(MAX1725 only)

IN Reverse Leakage Current

Thermal-Shutdown Threshold

ISC

VIH

VIL

I SHDN

IFB

VIN = 12V, VOUT = 0V

VIN = 2.5V to 12V

V SHDN = 0V to 12V

TA = +25°C

TA = +85°C

VFB = 1.25V

TA = +25°C

TA = +85°C

VIN = -12V, V SHDN = 0V

Temperature rising

40

mA

2

V

0.5

-50

+50

nA

0.1

-20

2

+20

nA

1.5

0.01

10

µA

150

°C

Thermal-Shutdown Hysteresis

15

°C

2

Maxim Integrated

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