LT3500IDD#PBF Linear Technology, LT3500IDD#PBF Datasheet - Page 6

• Manufacturer Part Number: LT3500IDD#PBF
• Description: IC REG STP-DWN 2A 12-DFN
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LT3500IDD#PBF

• Topology: Step-Down (Buck) (1), Linear (LDO) (1)
• Function: Any Function
• Number Of Outputs: 2
• Frequency - Switching: 500kHz ~ 2.4MHz
• Voltage/current - Output 1: 0.8 ~ 38.9 V, 2A
• Voltage/current - Output 2: Adjustable, 13mA
• W/led Driver: No
• W/supervisor: No
• W/sequencer: No
• Voltage - Supply: 3 V ~ 36 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 12-DFN
• Current - Output: 2A
• Voltage - Output: 0.8 ~ 38.9 V
• Voltage - Input: 3 ~ 36 V
• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

LT3500
TYPICAL PERFORMANCE CHARACTERISTICS
6
200
300
275
250
225
175
150
125
100
50
45
40
35
30
25
20
15
10
3.5
3.4
3.3
3.2
3.1
3.0
2.9
2.8
2.7
2.6
2.5
50
75
5
0
–50
–50
0
Boost Current vs Switch Current
Peak Switch Current
vs Temperature
Minimum Switching Times
MINIMUM ON TIME
0.2
–25
–25
0.4
DD PACKAGE
0
0
SWITCH CURRENT (A)
0.6
TEMPERATURE (°C)
TEMPERATURE (°C)
MSE PACKAGE
25
0.8
25
–50°C
1.0
50
50
MINIMUM OFF TIME
1.2 1.4
150°C
75
75
25°C
100 125 150
100
1.6
125
1.8
3500 G19
3500 G13
3500 G16
2.0
150
2500
2250
2000
1750
1500
1250
1000
750
500
250
2.7
2.5
2.3
2.1
1.7
1.5
1.9
20
19
18
17
16
15
14
13
12
11
10
0
–50
–50
Minimum Boost Voltages
vs Temperature
0
LDRV Short-Circuit Current
vs Temperature
Frequency vs R
MINIMUM BOOST FOR
SWITCH SATURATION
20
–25
–25
40
0
0
60
TEMPERATURE (°C)
TEMPERATURE (°C)
25
25
R
80
RT/SYNC
RT/SYNC
100
50
50
120 140
(kΩ)
75
75
100
100
160
T
A
= 25°C
125
125
180
3500 G20
3500 G14
3500 G17
150
150
200
100
600
500
400
300
200
100
90
80
70
60
50
40
30
20
10
8
7
6
5
4
3
2
1
0
0
0
250
0
Minimum Input Voltage
0
External Sync Duty Cycle Range
vs External Sync Frequency
Switch Saturation Voltage
vs Switch Current
T
f
L = 3.3μH
–50°C
T
SW
A
A
0.2
0.2
= 25°C
SYNCHRONIZATION FREQUENCY (kHz)
150°C
= 25°C
= 1MHz
0.4
0.4
750
MAXIMUM DUTY CYCLE
MINIMUM DUTY CYCLE
0.6
SWITCH CURRENT (A)
0.6
LOAD CURRENT (A)
25°C
V
V
OUT1
OUT1
0.8
0.8
1250
= 3.3V
= 5V
1.0
1.0
1.2
1.2
1750
1.4
1.4
1.6
1.6
2250
1.8
1.8
3500 G21
3500 G15
3500 G18
3500fc
2.0
2.0