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LTC3203B-1 Datasheet(PDF) 5 Page - Linear Technology

Part No. LTC3203B-1
Description  500mA Output Current Low Noise Dual Mode Step-Up Charge Pumps
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Maker  LINER [Linear Technology]
Homepage  http://www.linear.com
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LTC3203B-1 Datasheet(HTML) 5 Page - Linear Technology

 
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LTC3203/LTC3203-1
LTC3203B/LTC3203B-1
5
32031fa
TYPICAL PERFOR A CE CHARACTERISTICS
VFB Set Point vs Supply Voltage
(LTC3203/LTC3203B)
No-Load Input Current vs Supply
Voltage (LTC3203/LTC3203-1)
Extra Input Current vs Load
Current (LTC3203/LTC3203-1)
VIN (V)
2.5
60
80
100
4
5
3203 G10
40
20
0
3
3.5
4.5
120
140
160
5.5
2x MODE
1.5x MODE
Burst Mode Current Threshold
vs Supply Voltage
(LTC3203/LTC3203-1)
VIN (V)
2.5
0
100
200
300
3
3.5
4
4.5
3203 G11
5
400
500
50
150
250
350
450
5.5
2x MODE
1.5x MODE
ILOAD (mA)
0.01
0.01
1
0.1
1
10
100
1000
3209 G12
0.1
10
100
2x MODE
IIN – 2 • ILOAD
1.5x MODE
IIN – 1.5 • ILOAD
Input and Output Ripple
(2x Mode)
Load Transient (1.5x Mode)
Input and Output Ripple
(1.5x Mode)
VFB vs Load Current
(LTC3203/LTC3202B)
Load Transient (2x Mode)
VIN
20mV/DIV
AC-COUPLED
VOUT
20mV/DIV
AC-COUPLED
VIN = 4V
CIN = 2.2µF
COUT = 10µF
IOUT = 300mA
1.5x MODE
500ns/DIV
3203 G13
VIN
20mV/DIV
AC-COUPLED
VOUT
20mV/DIV
AC-COUPLED
VIN = 3.6V
CIN = 2.2µF
COUT = 10µF
IOUT = 300mA
2x MODE
500ns/DIV
3203 G14
VOUT
100mV/DIV
AC-COUPLED
500mA
IOUT
100mA
VIN = 4V
CIN = 2.2µF
COUT = 10µF
1.5x MODE
20
µs/DIV
3203 G15
VOUT
100mV/DIV
AC-COUPLED
500mA
IOUT
100mA
VIN = 3.6V
CIN = 2.2µF
COUT = 10µF
2x MODE
20
µs/DIV
3203 G16
VIN (V)
2.5
0.88
0.89
0.90
0.91
0.92
0.94
3
3.5
4
4.5
3203 G17
5
5.5
0.93
TA = 25°C
TA = –40°C
TA = 85°C
ILOAD (mA)
0
0.82
0.84
0.88
0.90
0.92
0.96
50
250
350
3203 G18
0.86
0.94
200
450 500
100 150
300
400
VIN = 4V
1.5x MODE
VIN = 3.6V
2x MODE


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