MAX8969EWL50(2011) Просмотр технического описания (PDF) - Maxim Integrated
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MAX8969EWL50 Datasheet PDF : 15 Pages
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Step-Up Converter
for Handheld Applications
Typical Operating Characteristics
(VIN = 3.6V, COUT = 22µF, X5R, 6.3V local and 10µF, X5R, 6.3V, 1µH inductor, circuit of Figure 1, TA = +25NC, unless otherwise noted.)
LIGHT-LOAD RIPPLE
MAX8969 toc15
AC-COUPLED
VOUT
20mV/div
VLX
IOUT = 1mA, VIN = 3.6V
40µs/div
2V/div
0
STARTUP (VOUT = 3.7V)
MAX8969 toc16
COUT, TYP = 32µF,
VEN
TREN = GND,
IOUT = 10mA,
VIN = 2.6V
2V/div
0
2V/div
VOUT
0
2V/div
VLX
0
200µs/div
STARTUP (VOUT = 5V)
MAX8969 toc17
COUT, TYP = 32µF,
VEN
TREN = GND,
IOUT = 10mA,
VIN = 3.2V
2V/div
0
2V/div
VOUT
0
VLX
2V/div
0
200µs/div
HARD-SHORT (VOUT = 3.7V)
MAX8969 toc18
VOUT
2V/div
0
2A/div
IOUT
0
VLX
2V/div
VIN = 3.2V, 0.1I LOAD
0
2A/div
ILX
0
40µs/div
HARD-SHORT (VOUT = 5V)
MAX8969 toc19
VOUT
2V/div
0
2A/div
IOUT
0
2V/div
VLX
VIN = 3.2V, 0.1I LOAD
0
2A/div
ILX
0
20µs/div
VEN
VOUT
VLX
SHUTDOWN
MAX8969 toc20
2V/div
0
2V/div
0
2V/div
0
10I LOAD, TREN = GND
2µs/div
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