L4978 STMicroelectronics, L4978 Datasheet - Page 11

• Manufacturer Part Number: L4978
• Description: IC REG SW 2A STEP DOWN 8-DIP
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of L4978

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 3.3 ~ 50 V
• Current - Output: 2A
• Frequency - Switching: 100kHz ~ 300kHz
• Voltage - Input: 8 ~ 55 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Power - Output: 1W
• Output Voltage: 50 V
• Output Current: 2 A
• Input Voltage: 8 V to 55 V
• Switching Frequency: 90 KHz to 110 KHz
• Operating Temperature Range: - 40 C to + 150 C
• Mounting Style: Through Hole
• Duty Cycle (max): 97 %
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-6701-5; E-L4978; E-L4978; L4978

Figure 30. SO16 Wide Mechanical Data & Package Dimensions
(1) “D” dimension does not include mold flash, protusions or gate
DIM.
D
ddd
A1
C
H
A
B
E
e
h
L
k
(1)
burrs. Mold flash, protusions or gate burrs shall not exceed
0.15mm per side.
10.10
MIN.
2.35
0.10
0.33
0.23
7.40
10.0
0.25
0.40
TYP.
1.27
mm
0˚ (min.), 8˚ (max.)
MAX.
10.50
10.65
2.65
0.30
0.51
0.32
7.60
0.75
1.27
0.10
0.093
0.004
0.013
0.009
0.398
0.291
0.394
0.010
0.016
MIN.
0.050
inch
TYP.
MAX.
0.104
0.012
0.200
0.013
0.413
0.299
0.419
0.030
0.050
0.004
MECHANICAL DATA
SO16 (Wide)
OUTLINE AND
0016021 C
L4978
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