MAX1763(2001) 查看數據表（PDF） - Maxim Integrated

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MAX1763
(Rev.:2001)

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

CONDITIONS

MIN

MAX UNITS

Gain-Block Enable Threshold

(VOUT - VAIN) (Note 6)

1.4

V

Gain-Block Disable Threshold

(VOUT - VAIN) (Note 6)

0.2

V

CLK/SEL Input Low Level

2.5 V ≤ VOUT ≤ 5.5V

(0.2)

V

VOUT

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

(0.8)

VOUT

VOUT

- 0.2V

1.6

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.

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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