MAX1763EUE 데이터 시트보기 (PDF) - Maxim Integrated

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MAX1763EUE

1.5A, Low-Noise, 1MHz, Step-Up DC-DC Converter

Maxim Integrated 

1.5A, Low-Noise, 1MHz, Step-Up

DC-DC Converter

ELECTRICAL CHARACTERISTICS (continued)

(CLK/SEL = ONB = FB = PGND = GND, ISET = REF, OUT = POUT, VONA = VAIN = VOUT = 3.6V, TA = -40°C to +85°C, unless other-

wise noted.) (Note 8)

PARAMETER

LOGIC INPUTS

Gain-Block Enable Threshold

(VOUT - VAIN) (Note 6)

Gain-Block Disable Threshold

(VOUT - VAIN) (Note 6)

CLK/SEL Input Low Level

CONDITIONS

2.5 V ≤ VOUT ≤ 5.5V

CLK/SEL Input High Level

ONA and ONB Input Low Level

(Note 7)

ONA and ONB Input High Level

(Note 7)

Input Leakage Current

2.5 V ≤ VOUT ≤ 5.5V

1.1 V ≤ VOUT ≤ 1.8V

1.8 V ≤ VOUT ≤ 5.5V

1.1 V ≤ VOUT ≤ 1.8V

1.8V ≤ VOUT ≤ 5.5V

CLK/SEL, ONA, ONB

MIN

0.2

(0.8)

VOUT

VOUT

- 0.2V

1.6

MAX UNITS

1.4

V

V

(0.2)

V

VOUT

V

0.2

V

0.4

V

1

µA

Note 1: Operating voltage. Because the regulator is bootstrapped to the output, once started, the MAX1763 will operate down to

0.7V input. For conditions where VIN might exceed the set VOUT, or where VOUT is set above 4V, an external Schottky diode

must be connected from LX to POUT.

Note 2: Startup is tested with the circuit of Figure 2.

Note 3: Defines low-noise mode maximum step-up ratio.

Note 4: The regulator is in startup mode until this voltage is reached. Do not apply full load current until the output exceeds 2.3V.

Note 5: Supply current from the 3.3V output is measured between the 3.3V output and the OUT pin. This current correlates directly

to the actual battery-supply current, but is reduced in value according to the step-up ratio and efficiency. The gain block is

disabled.

Note 6: Connect AIN to OUT to disable gain block.

Note 7: ONA and ONB have hysteresis of approximately 0.15 ✕ VOUT.

Note 8: Specifications to -40°C are guaranteed by design and not production tested.

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