MAX1765(2000) Просмотр технического описания (PDF) - Maxim Integrated

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MAX1765
(Rev.:2000)

800mA, Low-Noise, Step-Up DC-DC Converter with 500mA Linear Regulator

Maxim Integrated 

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

with 500mA Linear Regulator

ELECTRICAL CHARACTERISTICS (continued)

(VOUT = VPOUT = VINL = VONA = VONL = 3.6V, CLK/SEL = FBL = ONB = TRACK = PGND = GND, ISET = REF (bypassed with

0.22µF), LX = open, OUTL = open (bypassed with 4.7µF), TA = 0°C to +85°C, unless otherwise noted. Typical values are at

TA =+25 °C.)

PARAMETER

CONTROL INPUTS

Input Low Level

Input High Level

SYMBOL

CONDITIONS

ONA, ONB, ONL

(Note 5)

CLK/SEL

1.1V < VOUT < 1.8V

1.8V < VOUT < 5.5V

1.2V < VOUT < 5.5V

TRACK

1.2V < VINL < 5.5V

ONA, ONB, ONL

(Note 5)

CLK/SEL

1.1V < VOUT < 1.8V

1.8V < VOUT < 5.5V

1.2V < VOUT < 5.5V

TRACK

1.2V < VINL < 5.5V

MIN TYP MAX UNITS

VOUT

- 0.2

1.6

0.8 ×

VOUT

0.8 ×

VINL

0.2

0.4

0.2 ×

VOUT

V

0.2 ×

VINL

V

Input Leakage Current

(CLK/SEL, ONA, ONB,

ONL, TRACK)

0.01

1

µA

Internal Oscillator Frequency

External Oscillator

Synchronization Range

Oscillator Maximum Duty Cycle

Minimum CLK/SEL Pulse

Maximum CLK/SEL Rise/Fall Time

CLK/SEL = OUT

0.8

1

1.2

MHz

0.5

1.2

MHz

80

86

90

%

200

ns

100

ns

4 _______________________________________________________________________________________

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