L4963D STMicroelectronics, L4963D Datasheet - Page 2

• Manufacturer Part Number: L4963D
• Description: IC REG SWITCH 1.5A 20-SOIC
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of L4963D

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 5.1 ~ 36 V
• Current - Output: 1.5A
• Frequency - Switching: 42kHz ~ 83kHz
• Voltage - Input: 9 ~ 46 V
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (7.5mm Width)
• Power - Output: 5W
• Output Voltage: 36 V
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-1408-5

ABSOLUTE MAXIMUM RATINGS
L4963 - L4963D
PIN CONNECTION (top view)
2/17
V
V
V
SO20
13
19
9
V
V
, V
, V
, V
10
8
11
18
20
Symbol
T
V
stg
3
P
P
V
V
V
–V
tot
tot
2
2
, T
i
2
j
Powerdip
V
V
V
12
17
8
V
V
, V
, V
, V
7
9
10
16
18
Input Voltage (pin 1 and pin 3 connected togheter)
Input to Output Voltage Difference
Negative Output DC Voltage
Negative Output Peak Voltage at t=0.2 s, f=50kHz
Power Fail Input
Reset and Power Fail Output
Reset Delay Input
Feedback and Inhibit Inputs
Oscillator Inputs
Total Power Dissipation Tpins
(T
(T
Storage & Junction Temperature
(Tamb = 70 C 6cm
Total Power Dissipation Tpins 90 C (SO20L)
amb
amb
= 70 C no copper area on PCB)
= 70 C, 4cm
2
2
Powerdip18
copper area on PCB)
Parameter
copper area on PCB)
SO20
90 C (Power DIP)
–40 to 150
Value
1.45
5.5
5.5
1.3
47
47
–1
–5
25
V
7
5
2
4
i
Unit
W
W
W
W
W
V
V
V
V
V
V
V
V
C