L4979D STMicroelectronics, L4979D Datasheet - Page 8

• Manufacturer Part Number: L4979D
• Description: IC VOLTAGE REG LDO SO-8
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of L4979D

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 5V
• Current - Output: 150mA
• Voltage - Input: 5.6 ~ 31 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Polarity: Positive
• Input Voltage Max: 31 V
• Output Voltage: 5 V
• Output Type: Fixed
• Dropout Voltage (max): 0.4 V at 150 mA
• Output Current: 300 mA
• Line Regulation: 25 mV
• Load Regulation: 25 mV
• Voltage Regulation Accuracy: 2 %
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Frequency - Switching: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

2.2
8/22
Electrical characteristics
V
Table 5.
Table 6.
1. See
2. Guaranteed by design.
Table 7.
V
V
V
V
V
V
s
Pin
s
s
s
Pin
R
R
Pin
s
s
s
, V
, V
, V
V
V
V
V
= 5.6 V to 31 V; T
, V
, V
, V
es
es
o
o
o
o
o
o
o
o
o
o
Figure 3: Behavior of output current versus regulated voltage V
Symbol
Symbol
Symbol
T
V
I
V
V
I
SVR
V
res_h
w_hy
T
short
V
I
res_l
I
I
I
o_ref
load
q
q
q
lim
w
line
dp
General
Reset
Voltage regulator
Quiescent current
Quiescent current
Quiescent current
Thermal protection
temperature
Thermal protection
temperature
hysteresis
Output voltage
Output short circuit
current
Output current
limitation
Line regulation voltage
Load regulation voltage I
Drop voltage
Ripple rejection
Reset output low
voltage
Reset output high
leakage current
j
= -40 °C to 150 °C, unless otherwise specified.
Parameter
Parameter
Parameter
(1)
(1)
Doc ID 10262 Rev 7
(2)
V
enable high all
I/O currents = 0
V
enable high all
I/O currents = 0
V
enable low all
I/O currents = 0
s
s
s
= 13.5 V, I
= 13.5 V, I
= 13.5 V, I
V
I
V
V
V
I
I
f
R
V
V
o
o
o
o
r
o
s
s
s
s
res
ext
= 100 Hz
= 1 to 150 mA
= 1 to 150 mA
= 1 to 150 mA
= 150 mA
Test condition
= 5.6 to 31 V;
= 13.5 V
= 13.5 V
= 5.6 to 31 V
> 1 V
Test condition
Test condition
= 5 kΩ to V
= 5 V
o
o
o
= 150 mA,
= 0 mA,
= 0 mA,
o
;
o
.
Min.
Min.
Min.
4.90
150
150
150
55
Typ.
Typ.
5.00
Typ.
100
280
320
200
1.5
10
6
Max.
Max.
Max.
5.10
200
190
400
500
400
0.4
20
25
25
3
1
Unit
Unit
Unit
mA
mA
mA
mV
mV
mV
µA
µA
dB
µA
°C
°C
V
V