L4979D STMicroelectronics, L4979D Datasheet - Page 3

• 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

Table 3. Absolute Maximum Ratings
Note: 1. Maximum ratings are absolute ratings; exceeding any one of these values may cause permanent damage to the integrated circuit.
Table 4. Thermal DatA
Table 5. Electrical Characteristcs
(V
GENERAL
Symbol
R
V
V
V
s
Symbol
Pin
Vvsdc
VESD
th j-amb
s
s
s
Ivsdc
= 5.6V to 31V, T
Vcw
Vvo
Vod
Ven
, V
, V
, V
Vwi
Vcr
Iod
Ivo
Tj
o
o
o
Symbol
Thermal resistance Junction to Ambient
T
DC supply voltage
Input current
DC output voltage
DC output current
Watchdog input voltage
Open drain output voltage (RES)
Open drain output current (RES)
Reset delay voltage
Watchdog delay voltage
Enable input voltage
Junction temperature
ESD voltage level (HBM-MIL STD 883C)
w_hy
T
I
I
I
q
q
q
w
j
Quiescent current
Quiescent current
Quiescent current
Thermal protection
temperature
Thermal protection
temperature hysteresis
= -40°C to +150°C unless otherwise specified)
Parameter
Parameter
Parameter
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
= 13.5V, I
= 13.5V, I
= 13.5V, I
Test Condition
o
o
o
=150mA,
= 0mA,
= 0mA,
130 to 180
SO8
Min.
150
-0.3 to V
-0.3 to V
-0.3 to V
-0.3 to V
-40 to 150
-0.3 to 40
-0.3 to 40
-0.3 to 6
Value
internally limited
internally limited
internally limited
±2
Typ.
100
SO16+2+2
1.5
10
L4979MD L4979D
vo
vo
vo
vo
6
50 to 80
+0.3
+0.3
+0.3
+0.3
Max.
200
190
20
3
°C/W
Unit
Unit
kV
°C
Unit
mA
V
V
V
V
V
V
V
µA
µA
°C
°C
3/10