MAX1795 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX1795 Datasheet PDF : 13 Pages
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MAX1795/MAX1796/
MAX1797
Low-Supply Current, Step-Up DC-DC Converters
with True Shutdown
Typical Operating Characteristics (continued)
(L = 22μH, CIN = 47μF, COUT = 47μF, TA = +25°C, unless otherwise noted.)
LOW-BATTERY INPUT THRESHOLD
vs. INPUT BATT VOLTAGE
0.950
0.925
0.900
0.875
INCREASING VLBI
0.850
0.825
DECREASING VLBI
LOW-BATTERY INPUT THRESHOLD
vs. TEMPERATURE
0.950
0.925
VBATT = +3.6V
0.900
INCREASING VLBI
0.875
0.850
0.825
DECREASING VLBI
MAX1795
MAXIMUM OUTPUT CURRENT
vs. BATT INPUT VOLTAGE
250
200
VOUT = +3.3V
150
VOUT = +5.0V
100
50
0.800
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
BATT VOLTAGE (V)
0.800
-40
MAX1796
MAXIMUM OUTPUT CURRENT
vs. BATT INPUT VOLTAGE
500
-15
10
35
60
85
TEMPERATURE (°C)
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
BATT VOLTAGE (V)
MAX1797
MAXIMUM OUTPUT CURRENT
vs. BATT INPUT VOLTAGE
1000
400
300
VOUT = +3.3V
200
VOUT = +5.0V
100
800
VOUT = +3.3V
600
400
VOUT = +5.0V
200
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
BATT VOLTAGE (V)
OUT LEAKAGE CURRENT
vs. OUTPUT VOLTAGE
2.0
SHDN = BATT
VOUT = +5V
1.6 VBATT = +2.4V
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
BATT VOLTAGE (V)
HEAVY-LOAD SWITCHING WAVEFORMS
MAX1795/96/97 toc16
VLX
5V/div
1.2
0.8
0.4
OUT BIASED WITH
EXTERNAL VOLTAGE
SOURCE
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
OUTPUT VOLTAGE (V)
www.maximintegrated.com
IINDUCTOR
500mA/div
VOUT
(AC-COUPLED)
100mV/div
VIN = +3.6V
VOUT = +5.0V
ILOAD = 400mA
4.00µs/div
Maxim Integrated │ 6
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