MAX1763 Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
MAX1763 Datasheet PDF : 18 Pages
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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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