L4973D5.1 STMicroelectronics, L4973D5.1 Datasheet - Page 6

• Manufacturer Part Number: L4973D5.1
• Description: IC REG SW 3.5A STEPDOWN 20-SOIC
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of L4973D5.1

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 5.1V, 5.1 ~ 50 V
• Current - Output: 3.5A
• Frequency - Switching: 100kHz ~ 300kHz
• Voltage - Input: 8 ~ 55 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (7.5mm Width)
• Power - Output: 4W
• Output Voltage: 5.1 V
• Output Current: 3.5 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: SMD/SMT
• Duty Cycle (max): 97 %
• Current, Input Bias: 2 μA
• Current, Output: 300 μA
• Current, Supply: 2.7 mA
• Frequency, Oscillator: 100 kHz
• Package Type: SO-20
• Power Dissipation: 4 W
• Regulation, Line: 5 mV
• Regulation, Load: 2 mV
• Regulator Type: Switching
• Temperature, Operating, Range: -40 to +150 °C
• Transconductance: 2.5
• Voltage, Gain: 60 dB
• Voltage, Input: 55 V
• Voltage, Output: 5.1 V
• Voltage, Output, High: 3 V
• Voltage, Output, Low: 0.8 V
• Voltage, Supply: 24 V
• For Use With: 497-4743 - BOARD EVAL FOR L4973X SW REG
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-1412-5

Package mechanical data
24/27
Table 7. SO-20 mechanical data
Figure 46. Package dimensions
Dim.
ddd
A1
D
A
B
C
E
H
e
h
L
k
(1)
12.60
2.35
0.10
0.33
0.23
7.40
10.0
0.25
0.40
Min
1.27
Typ
mm.
13.00
10.65
Max
2.65
0.30
0.51
0.32
7.60
0.75
1.27
0.10
0° (min.), 8° (max.)
0.093
0.004
0.013
0.009
0.496
0.291
0.394
0.010
0.016
Min
0.050
Typ
inch
0.104
0.012
0.200
0.013
0.512
0.299
0.419
0.030
0.050
0.004
Max
L4973