MAX1759EUB(2000_01) 查看數據表（PDF） - Maxim Integrated
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MAX1759EUB Datasheet PDF : 12 Pages
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Buck/Boost Regulating
Charge Pump in µMAX
Typical Operating Characteristics
(Circuit of Figure 1, CIN = 10µF, CX = 0.33µF, COUT = 10µF, VOUT = 3.3V, VIN = 2.5V, TA = +25°C, unless otherwise noted.)
OUTPUT VOLTAGE RIPPLE
vs. INPUT VOLTAGE
100
80
IOUT = 100mA
60
IOUT = 50mA
40
20
IOUT = 10mA
0
1.5
2.5
3.5
4.5
5.5
INPUT VOLTAGE (V)
10,000
QUIESCENT CURRENT
vs. INPUT VOLTAGE
1000
OUTPUT VOLTAGE vs. LOAD CURRENT
3.40
3.35
3.30
3.25
3.20
0.001 0.01 0.1 1 10 100 1000
LOAD CURRENT (mA)
STARTUP INPUT VOLTAGE
(VOUT < VIN)
4
RLOAD = 33Ω
3
EFFICIENCY vs. INPUT VOLTAGE
100
90
IOUT = 10mA
80
70
IOUT = 50mA
60
50
IOUT = 100mA
40
30
20
10
0
1.5
2.5
3.5
4.5
5.5
INPUT VOLTAGE (V)
TYPICAL SWITCHING WAVEFORMS
(VOUT < VIN)
RLOAD = 33Ω
VIN = 4.2V
1
100
10
1
0.5
NO LOAD
1.5
2.5
3.5
4.5
5.5
INPUT VOLTAGE (V)
TYPICAL SWITCHING WAVEFORMS
(VOUT > VIN)
RLOAD = 33Ω
VIN = 2.5V
1
2
1
0
0.5 1.5 2.5 3.5 4.5 5.5
INPUT VOLTAGE (V)
LOAD-TRANSIENT RESPONSE
(VOUT < VIN)
1
2
3
5µs/div
CH1: VOUT, 20mV/div, AC-COUPLED
CH2: VCXP, 5V/div
CH3: VIN, 50mV/div, AC-COUPLED
LOAD-TRANSIENT RESPONSE
(VOUT > VIN)
1
2
2
2
3
LOAD STEP: 10mA TO 100mA
LOAD STEP: 10mA TO 100mA
VIN = 4.2V
VIN = 2.5V
5µs/div
100µs/div
100µs/div
CH1: VOUT, 20mV/div, AC-COUPLED
CH1: VOUT, 20mV/div, AC-COUPLED
CH1: VOUT, 20mV/div, AC-COUPLED
CH2: VCXP, 5V/div
CH2: IOUT, 100mA/div
CH2: IOUT, 100mA/div
CH3: VIN, 50mV/div, AC-COUPLED
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