L4949ED-E STMicroelectronics, L4949ED-E Datasheet - Page 6

• Manufacturer Part Number: L4949ED-E
• Description: IC REG VLDO MULTIFUNCTION 8SOIC
• Manufacturer: STMicroelectronics
• Series: -r

Specifications of L4949ED-E

• Regulator Topology: Positive Fixed
• Voltage - Output: 5V
• Voltage - Input: Up to 28V
• Voltage - Dropout (typical): 0.3V @ 100mA
• Number Of Regulators: 1
• Current - Output: 100mA
• Current - Limit (min): 120mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Block diagram and pin description
6/19
Table 2.
SO-8
1
2
3
4
5
6
7
8
-
Pin N°
3, 8, 9, 13, 18
4, 5, 6, 7, 14,
15, 16, 17
SO-20
Pin definitions and functions
19
20
10
11
12
1
2
Symbol
V
GND
RES
NC
S
V
V
C
OUT
S
S
O
Z
T
I
Doc ID 16823 Rev 1
Input supply voltage. Block to GND via an external
capacitor (see
Sense input pin to supervise input voltage. Connect via an
external voltage divider connected to V
Preregulator output voltage. For details, see
Preregulator.
Reset pulse delay adjustment. Connecting this pin via a
capacitor to GND
Ground reference
Reset output. It is pulled down when the output voltage
goes below V
Sense output. This open collector pin must be connected to
V
the S
Output voltage. Block to GND via an external capacitor (see
Figure
Not connected pins
OUT
I
via an external resistor. It is pulled down whenever
voltage becomes lower than an internal voltage.
3)
RT
Figure
.
3).
Function
L4949ED-E, L4949EP-E
S
and to GND.
Section 3.4: