lt3510 Linear Technology Corporation, lt3510 Datasheet - Page 6

• Manufacturer Part Number: lt3510
• Description: Monolithic Dual Tracking 2a Step-down Switching Regulator
• Manufacturer: Linear Technology Corporation

LT3510
Typical perForMance characTerisTics

100
1.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
2.5
2.0
1.0
0.5
90
80
70
60
50
40
30
20
10
0
0
250
–50 –25
1
Minimum Boost Voltage
vs Temperature
Minimum Input Voltage
vs Load Current
External Sync Duty Cycle Range
vs External Sync Frequency
V
OUT
= 2.5V
500
10
MAXIMUM CLOCK
MINIMUM CLOCK
0
TEMPERATURE (°C)
FREQUENCY (kHz)
DUTY CYCLE
DUTY CYCLE
CURRENT (mA)
750
25
100
50
1000
RUNNING
75
1000
1250
100
3510 G24
3510 G17
3510 G21
10000
1500
125
1600
1400
1200
1000
800
600
400
200
100
100
6.0
5.5
5.0
4.5
4.0
3.5
3.0
0
95
90
85
80
75
70
65
60
55
50
Frequency and Phase vs R
Pin Resistance
–50
V
vs Temperature
Minimum Input Voltage
vs Load Current
1
V
20
OUT
OUT
FREQUENCY
–25
= 3.3V
+ IND Current
40
RESISTANCE (kΩ)
10
0
TEMPERATURE (°C)
60
CURRENT (mA)
RUNNING
25
80
100
50
100 120 140
PHASE
75
T
1000
/SYNC
3510 G18
100
3510 G25
3510 G22
10000
190
185
180
175
170
165
160
155
150
125
7.5
7.0
6.5
6.0
5.5
5.0
4.5
100
250
200
100
150
90
80
70
60
50
40
30
20
10
50
0
0
1
Minimum Input Voltage
vs Load Current
0.5
0
V
V
vs V
Switch Saturation Voltage
vs Switch Current
OUT
OUT
0.2
= 5V
0.7
OUT
+ IND Current
0.4
10
Voltage
0.9
0.6
CURRENT (mA)
RUNNING
VOLTAGE (V)
0.8
CURRENT (A)
1.1
100
1.0
1.3
1.2 1.4
1.5
1000
125°C
1.6
1.7
25°C
3510 G26
–50°C
1.8
3510 G19
3510 G23
10000
3510fb
1.9
2.0