MAX17083 Просмотр технического описания (PDF) - Maxim Integrated
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MAX17083 Datasheet PDF : 15 Pages
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Low-Voltage, Internal Switch,
Step-Down Regulator
Typical Operating Characteristics (continued)
(Circuit of Figure 1, VIN = 5V, VOUT = 1.1V, FREQ = open. TA = +25°C, unless otherwise noted.)
EFFICIENCY vs. LOAD CURRENT
(VIN = 3.3V, 750kHz)
100
VOUT = 1.8V
VOUT = 1.5V
90
80
VOUT = 1.1V
70
VOUT = 0.75V
60
50
0.001
0.01
0.1
1
10
LOAD CURRENT (A)
SMPS OUTPUT VOLTAGE
vs. LOAD CURRENT (1MHz)
0.78
0.77
VIN = 5V
0.76
0.75
VIN = 3.3V
0.74
0
1
2
3
4
5
6
LOAD CURRENT (A)
REGULATOR STARTUP WAVEFORM
(HEAVY LOAD)
MAX17083 toc06
EN
POK
OUT
IL
LX
400μs/div
fSW = 750kHz, VIN = 5V,
VOUT = 1.1V
EN: 5V/div
OUT: 1V/div
RLOAD = 0.22Ω
POK: 2V/div
IL: 5A/div
LX: 5V/div
REGULATOR STARTUP WAVEFORM
(NO LOAD)
MAX17083 toc07
EN
POK
OUT
IL
LX
400μs/div
fSW = 1MHz, VIN = 5V,
VOUT = 1.1V
EN: 5V/div
OUT: 1V/div
POK: 2V/div
IL: 5A/div
LX: 5V/div
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