MAX1880_12 datasheet(2/39 Pages) MAXIM

Part #	MAX1880

Description	Quad-Output TFT LCD DC-DC Converters with Buffer

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Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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MAX1778/MAX1880–MAX1885

Quad-Output TFT LCD DC/DC

Converters with Buffer

2

Maxim Integrated

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VIN = +3.0V, SHDN = IN, VSUPP = VSUPN = VSUPB = VSUPL = 10V, LDOOUT = FBL, BUF- = BUFOUT, BUF+ = FLTSET = TGND =

PGND = GND, CREF = 0.22µF, CBUF = 1µF, TA = 0°C to +85°C. Typical values are at TA = +25°C, unless otherwise noted.)

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.

IN, SHDN, TGND, FLTSET to GND...........................-0.3V to +6V

DRVN to GND .........................................-0.3V to (VSUPN + 0.3V)

DRVP to GND..........................................-0.3V to (VSUPP + 0.3V)

PGND to GND.....................................................................±0.3V

RDY, SUPB to GND ................................................-0.3V to +14V

LX, SUPP, SUPN to PGND .....................................-0.3V to +14V

SUPL to GND..........................................................-0.3V to +18V

LDOOUT to GND ....................................-0.3V to (VSUPL + 0.3V)

INTG, REF, FB, FBN, FBP to GND ...............-0.3V to (VIN + 0.3V)

FBL to GND .............-0.3V to the lower of (VSUPL + 0.3V) or +6V

BUFOUT, BUF+, BUF- to GND ...............-0.3V to (VSUPB + 0.3V)

Continuous Power Dissipation (TA = +70°C)

20-Pin TSSOP (derate 10.9mW/°C above +70°C) ......879mW

24-Pin TSSOP (derate 12.2mW/°C above +70°C) ......975mW

Operating Temperature Range

MAX1778EUG, MAX1883EUP ........................-40°C to +85°C

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

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

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

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Input Supply Range

VIN

2.7

5.5

V

Input Undervoltage Threshold

VUVLO

VIN rising, 40mV hysteresis (typ)

2.2

2.4

2.6

V

MAX1778/MAX1880/

MAX1883 (fOSC = 1MHz)

0.7

1

IN Quiescent Supply Current

IIN

VFB = VFBP

= 1.5V, VFBN

= -0.2V

MAX1881/MAX1882/

MAX1884/MAX1885

(fOSC = 500kHz)

0.6

1

mA

MAX1778/MAX1880

(fOSC = 1MHz)

0.4

0.7

SUPP Quiescent Current

ISUPP

VFBP = 1.5V

MAX1881/MAX1882

(fOSC = 500kHz)

0.3

0.5

mA

MAX1778/MAX1880

(fOSC = 1MHz)

0.4

0.7

SUPN Quiescent Current

ISUPN

VFBN = -0.2V

MAX1881/MAX1882

(fOSC = 500kHz)

0.3

0.5

mA

IN Shutdown Current

VSHDN = 0, VIN = 5V

0.1

10

µA

SUPP Shutdown Current

VSHDN = 0, VSUPP = 13V,

MAX1778/MAX1880/MAX1881/MAX1882

0.1

10

µA

SUPN Shutdown Current

VSHDN = 0, VSUPN = 13V,

MAX1778/MAX1880/MAX1881/MAX1882

0.1

10

µA

SUPL Shutdown Current

VSHDN = 0, VSUPL = 13V

MAX1778/MAX1881/MAX1883/MAX1884

0.1

10

µA

SUPB Shutdown Current

VSHDN = 0, VSUPB = 13V

6

13

µA

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