LT1309 Linear Technology, LT1309 Datasheet - Page 3

• Manufacturer Part Number: LT1309
• Description: 500kHz Micropower DC/DC Converter for Flash Memory
• Manufacturer: Linear Technology

TYPICAL PERFORMANCE CHARACTERISTICS
800
400
300
700
600
500
–50
Oscillator Frequency
–25
12.00
12.20
12.15
12.10
12.05
11.95
11.90
11.85
11.80
14
12
10
8
2
0
6
4
TEMPERATURE ( C)
–50
–50
0
Sense Voltage
Supply Current in Shutdown
–25
–25
25
TEMPERATURE ( C)
TEMPERATURE ( C)
50
0
0
V
V
W
CC
CC
25
25
75
= 5V
= 3V
1309 G01
U
100
50
50
75
75
1309 G04
1309 G06
1000
900
500
400
800
700
600
100
100
–50
Switch Current Limit
–25
V
CC
TEMPERATURE ( C)
= 5V
0
V
CC
= 3V
25
50
75
800
700
600
500
400
300
95
75
70
1309 G02
90
85
80
–50
–50
Supply Current
100
Maximum Duty Cycle
–25
–25
TEMPERATURE ( C)
TEMPERATURE ( C)
250
225
125
100
200
175
150
0
0
–50
V
V
Switch Saturation Voltage
CC
CC
I
SW
25
25
= 5V
= 3V
= 500mA
–25
50
50
TEMPERATURE ( C)
0
75
75
1309 G05
1309 G07
25
100
100
LT1309
50
75
1309 G03
3
100