LT3970EDDB-3.3#PBF Linear Technology, LT3970EDDB-3.3#PBF Datasheet - Page 6

• Manufacturer Part Number: LT3970EDDB-3.3#PBF
• Description: IC, STEP-DOWN REGULATOR, DFN-10
• Manufacturer: Linear Technology

Specifications of LT3970EDDB-3.3#PBF

• Primary Input Voltage: 12V
• No. Of Outputs: 1
• Output Voltage: 3.3V
• Output Current: 350mA
• No. Of Pins: 10
• Operating Temperature Range: -40°C To +125°C
• Peak Reflow Compatible (260 C): Yes
• Msl: MSL 1 - Unlimited
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LT3970/LT3970-3.3/LT3970-5
TYPICAL PERFORMANCE CHARACTERISTICS
6
150
1.0
0.8
0.4
0.2
250
200
100
0.6
5.0
4.5
4.0
3.5
3.0
2.5
0
–50
0
Catch Diode Forward Voltage
Switch V
vs Temperature
0
Minimum Input Voltage,
V
FRONT PAGE APPLICATION
V
OUT
TO START/RUN
OUT
–25
50
= 3.3V
= 3.3V
CATCH DIODE CURRENT (mA)
100
0
CESAT
100
LOAD CURRENT (mA)
TEMPERATURE (°C)
25
150
(I
200
SW
50
200
= 200mA)
75
250
300
100 125 150
300
–50°C
25°C
125°C
150°C
3970 G20
3970 G14
3970 G17
400
350
100
400
300
200
6.5
6.0
5.5
5.0
4.5
4.0
20
16
12
8
4
0
0
–50
0
0
Minimum Input Voltage,
V
Catch Diode Leakage
Switch V
TO RUN
V
FRONT PAGE APPLICATION
V
OUT
R
OUT
–25
= 12V
50
= 5V
= 5V
100
0
100
SWITCH CURRENT (mA)
CESAT
TO START
LOAD CURRENT (mA)
TEMPERATURE (°C)
25
200
150
50
200
300
75
250
100 125
400
300
T
A
3970 G18
3970 G21
3970 G15
= 25°C, unless otherwise noted.
350
150
500
1.2
1.0
0.8
0.6
0.4
0.2
89
92
91
90
88
16
14
12
10
0
8
6
4
2
–50
0
0
Boost Diode Forward Voltage
Power Good Threshold
BOOST Pin Current
–25
100
BOOST DIODE CURRENT (mA)
50
0
SWITCH CURRENT (mA)
TEMPERATURE (°C)
25
200
100
50
300
75
100 125 150
150
400
–50°C
25°C
125°C
150°C
3970 G19
3970 G22
3970 G16
3970fa
200
500