MAX1765EUE+【PDF 2/19 页】IC REG DL BST/LINEAR 16TSSOP

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Sheet目录42

1页 [2页]3页 4页 5页 6页

800mA, Low-Noise, Step-Up DC-DC Converter

with 500mA Linear Regulator

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

OUT

= V

POUT

= V

INL

= V

ONA

= V

ONL

= 3.6V, CLK/SEL = FBL = ONB= TRACK = PGND = GND, ISET = REF (bypassed with

0.22礔), LX = open, OUTL = open (bypassed with 4.7礔), T

= 0癈 to +85癈, unless otherwise noted. Typical values are at

= +25癈.)

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.

ONA, ONB, ONL, TRACK, OUT, INL to GND..............-0.3V, +6V

PGND to GND.....................................................................?.3V

LX to GND...............................................-0.3V to (POUT + 0.3V)

OUTL to GND..............................................-0.3V to (INL + 0.3V)

CLK/SEL, REF, FB, FBL, ISET, POUT

to GND...................................................-0.3V to (OUT + 0.3V)

OUTL Short Circuit.....................................................Continuous

Continuous Power Dissipation (T

= +70癈)

16-Pin QSOP (derate 8.3mW/癈 above +70癈)...........667mW

16-Pin TSSOP-EP (derate 19mW/癈 above +70癈)....1500mW

Operating Temperature Range...........................-40癈 to +85癈

Junction Temperature......................................................+150癈

Storage Temperature Range.............................-65癈 to +150癈

Lead Temperature (soldering, 10s).................................+300癈

Soldering Temperature (reflow).......................................+260癈

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

DC-DC CONVERTER

Input Voltage Range

(Note 1)

0.7 5.5 V

INL Voltage Range

(Note 1)

2.3 5.5 V

Minimum Startup Voltage

LOAD

< 1mA, T

= +25癈, Figure 2

0.9 1.1 V

Temperature Coefficient of

Startup Voltage

LOAD

< 1mA

-2

m V /癈

FB Regulation Voltage

CLK/SEL = OUT, 0 < I

< 0.55A

1.215 1.250 1.275 V

FB Input Leakage Current

= 1.35V

0.01 100 nA

Output Voltage Adjust Range

2.5

5.5 V

Load Regulation

CLK/SEL = OUT, 0 < I

LOAD

< 800mA

-1

OUT Voltage in Track Mode

OUTL

> 2.0V, INL = POUT

OUTL

+ 0.4

OUTL

+ 0.5

OUTL

+ 0.6

Frequency in Startup Mode

OUT

= 1.5V

125

1000 kHz

Startup to Normal Mode

Transition Voltage

Rising edge only (Note 2)

2.00 2.15 2.30 V

ISET Input Leakage Current

ISET

= 1.25V

0.01 50 nA

Supply Current in Normal Mode

(Note 3)

CLK/SEL = ONL = GND, no load

100 200 糀

= 1.5V

130 200 糀

Supply Current in Low-Noise

PWM Mode (Note 3)

C LK/S E

L =

OU T,

no l oad

FB = GN D ( LX sw i

tchi ng )

2.5

Supply Current in Shutdown

ONA = ONL = GND, ONB = OUT

1 10 糀

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