LT3980EDE#TRPBF Linear Technology, LT3980EDE#TRPBF Datasheet - Page 5

• Manufacturer Part Number: LT3980EDE#TRPBF
• Description: IC SWITCHING REG STP-DN 2A 14DFN
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LT3980EDE#TRPBF

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 0.79 ~ 52.2 V
• Current - Output: 2A
• Frequency - Switching: 100kHz ~ 2.4MHz
• Voltage - Input: 3.6 ~ 58 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 14-DFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

TYPICAL PERFORMANCE CHARACTERISTICS
700
400
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
100
600
500
300
200
100
240
220
180
160
140
120
200
0
–50
–50
0
Switch Voltage Drop
Switching Frequency
Minimum Switch On-Time
I
RF = 32.4k
LOAD
–25
–25
= 1A
0
0
SWITCH CURRENT (A)
TEMPERATURE (°C)
TEMPERATURE (°C)
1
25
25
50
50
75
75
2
100
100
125
125
3980 G10
3980 G16
3880 G13
150
150
3
1200
1000
120
105
400
800
600
200
90
75
60
45
30
15
0
0
7
6
5
4
3
2
1
0
0
0
0
Boost Pin Current
vs Switch Current
Frequency Foldback
Soft-Start
100
0.5
200
RUN/SS PIN VOLTAGE (V)
SWITCH CURRENT (A)
FB PIN VOLTAGE (mV)
1
300
1
1.5
400
500
2
600
2
2.5
700
3
800
3980 G11
T
3980 G17
A
3980 G14
900
= 25°C unless otherwise noted.
3.5
3
3500
3000
2500
2000
1500
1000
500
840
820
800
780
760
24
20
16
12
0
8
4
0
–50
1
0
Feedback Voltage
R
RUN/SS Pin Current
T
–25
vs Frequency
10
RUN/SS PIN VOLTAGE (V)
0
TEMPERATURE (°C)
10
RESISTANCE (kΩ)
20
25
50
30
LT3980
75
100
40
100
50
125
3980 G18
3980 G15
3980 G12
5
3980f
1000
150
60