L4976D STMicroelectronics, L4976D Datasheet - Page 6

• Manufacturer Part Number: L4976D
• Description: IC REG SW 1A STEPDOWN 16-SOIC
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of L4976D

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 0.5 ~ 50 V
• Current - Output: 1A
• Frequency - Switching: 100kHz
• Voltage - Input: 8 ~ 55 V
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (0.300", 7.5mm Width)
• Power - Output: 800mW
• Output Voltage: 50 V
• Operating Temperature Range: - 40 C to + 150 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Electrical characteristics
4
Table 5. Electrical characteristics
(T
6/17
Dynamic characteristic
Reference section
J
Symbol
= 25°C, C
SVRR
V
Vd
V
f
I
s
O
l
I
Electrical characteristics
OSC
Operating input voltage range
Output voltage
Dropout voltage
Maximum limiting current
Efficiency
Switching frequency
Supply voltage ripple rejection
Voltage stability of switching
frequency
Temp. stability of switching
frequency
Reference voltage
Line regulation
Load regulation
Short circuit current
= 2.7nF, R
Parameter
OSC
= 20kΩ, V
CC
= 24V, unless otherwise specified.)
V
I
I
V
V
(1)
V
V
V
I
V
T
I
V
I
V
V
V
O
O
(1)
O
ref
ref
J
O
CC
CC
CC
O
I
CC
CC
CC
ref
CC
= 0.5A
= 0.2 to 1A
= V
= 1.A; f
= 0 to 125°C
= 0 to 10mA;
= 0mA;
= 3.3 to 50V; I
= 3.3V; I
= 0 to 5mA;
= 8 to 55V
= 10V; I
= 8 to 55V
= 8 to 55V
= 8 to 55V
= 8 to 55V
= 0 to 20mA
CC
Test condition
+ 2V
ripple
O
O
= 1A
RMS
= 1A
= 100Hz
(1)
(1)
(1)
O
; V
= 1A
O
= V
(1)
ref
;
3.292
4.950
3.33
3.22
Min
1.5
5.0
90
60
30
8
3.36
3.36
3.36
0.29
Typ
100
5.1
5.1
85
65
2
3
4
5
2
6
3.427
0.367
0.587
5.250
Max
3.39
110
100
3.5
2.5
5.2
55
10
10
25
6
L4976
Unit
KHz
mV
mV
mV
mA
dB
%
%
%
V
V
V
V
V
V
A
V
V