L4949ED-E STMicroelectronics, L4949ED-E Datasheet - Page 12

• 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

Application information
3.4
12/19
Figure 5.
Figure 6.
Preregulator
To improve the transient immunity a preregulator stabilizes the internal supply voltage to 5 V.
This internal voltage is present at Pin 3 (V
because the output capability is very small (≤ 10 µA).
This output may be used as an option when a better transient behaviour for supply voltages
less than 8 V is required (see also application note).
In this case a capacitor (100 nF - 1 µF) must be connected between pin V
feature is not used pin V
Output voltage vs input voltage
Quiescent current vs supply voltage
Z
must be left open.
Doc ID 16823 Rev 1
Z
). This voltage should not be used as an output
L4949ED-E, L4949EP-E
Z
and GND. If this