MAX1763 Maxim, MAX1763 Datasheet - Page 5

• Manufacturer Part Number: MAX1763
• Description: 1.5A / Low-Noise / 1MHz / Step-Up DC-DC Converter
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(CLK/SEL = ONB = FB = PGND = GND, ISET = REF, OUT = POUT, V
wise noted.) (Note 8)
Note 1: Operating voltage. Because the regulator is bootstrapped to the output, once started, the MAX1763 will operate down to
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
Note 6: Connect AIN to OUT to disable gain block.
Note 7: ONA and ONB have hysteresis of approximately 0.15
Note 8: Specifications to -40°C are guaranteed by design and not production tested.
LOGIC INPUTS
Gain-Block Enable Threshold
(V
Gain-Block Disable Threshold
(V
CLK/SEL Input Low Level
CLK/SEL Input High Level
ONA and ONB Input Low Level
(Note 7)
ONA and ONB Input High Level
(Note 7)
Input Leakage Current
OUT
OUT
- V
- V
0.7V input.
to the actual battery-supply current, but is reduced in value according to the step-up ratio and efficiency. The gain block is
disabled.
PARAMETER
AIN
AIN
) (Note 6)
) (Note 6)
_______________________________________________________________________________________
2.5 V ≤ V
2.5 V ≤ V
1.1 V ≤ V
1.8 V ≤ V
1.1 V ≤ V
1.8V ≤ V
CLK/SEL, ONA, ONB
1.5A, Low-Noise, 1MHz, Step-Up
OUT
OUT
OUT
OUT
OUT
OUT
≤ 5.5V
≤ 5.5V
≤ 5.5V
≤ 1.8V
≤ 5.5V
≤ 1.8V
CONDITIONS
✕
V
OUT
ONA
.
= V
AIN
= V
OUT
DC-DC Converter
= 3.6V, T
(0.8)
V
- 0.2V
V
MIN
OUT
0.2
1.6
OUT
A
= -40°C to +85°C, unless other-
V
MAX
(0.2)
1.4
0.2
0.4
OUT
1
UNITS
µA
V
V
V
V
V
V
5