L4979DTR-E STMicroelectronics, L4979DTR-E Datasheet - Page 8
![no-image](/images/manufacturer_photos/0/6/637/stmicroelectronics_sml.jpg)
L4979DTR-E
Manufacturer Part Number
L4979DTR-E
Description
IC REG PROGR WATCHDOG 8SOIC
Manufacturer
STMicroelectronics
Type
Step-Down (Buck)r
Series
-r
Datasheet
1.L4979DTR-E.pdf
(22 pages)
Specifications of L4979DTR-E
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 (0.236", 6.0mm Width)
Power - Output
*
Regulator Topology
Positive Fixed
Voltage - Dropout (typical)
0.2V @ 150mA
Number Of Regulators
1
Current - Limit (min)
150mA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Frequency - Switching
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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