L4938ED STMicroelectronics, L4938ED Datasheet - Page 15
![IC VREG ADVANCED DUAL SO-20](/photos/6/56/65691/497-20-soic__7_5mm_width__series_sml.jpg)
L4938ED
Manufacturer Part Number
L4938ED
Description
IC VREG ADVANCED DUAL SO-20
Manufacturer
STMicroelectronics
Datasheet
1.L4938EPD13TR.pdf
(20 pages)
Specifications of L4938ED
Regulator Topology
Positive Fixed and Adjustable
Voltage - Output
5V, 4.9 ~ 5.1 V
Voltage - Input
Up to 28V
Voltage - Dropout (typical)
0.2V @ 100mA, 0.3V @ 400mA
Number Of Regulators
2
Current - Output
100mA, 400mA
Current - Limit (min)
100mA, 450mA
Operating Temperature
-40°C ~ 150°C
Mounting Type
Surface Mount
Package / Case
20-SOIC (7.5mm Width)
Polarity
Positive
Number Of Outputs
2
Output Type
Fixed
Output Voltage
5 V
Output Current
5 mA
Line Regulation
20 mV
Load Regulation
50 mV
Dropout Voltage (max)
0.2 V
Input Voltage Max
20 V
Maximum Operating Temperature
+ 150 C
Minimum Operating Temperature
- 40 C
Maximum Power Dissipation
875 mW
Mounting Style
SMD/SMT
Reference Voltage
1.23 V
Voltage Regulation Accuracy
2 %
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
L4938ED
Manufacturer:
ST
Quantity:
20 000
Company:
Part Number:
L4938ED013TR
Manufacturer:
OKISEMICONDUCTOR
Quantity:
2 854
Part Number:
L4938ED013TR
Manufacturer:
ST
Quantity:
20 000
Part Number:
L4938EDTR-E
Manufacturer:
ST
Quantity:
20 000
L4938ED, L4938EPD
3.8
Input protection
The Inputs Enable (EN) and Sense In (SI) are protected against negative transients.
Figure 7
Figure 7.
Figure 8.
is showing the simplified schematic
Input protection
Input characteristics of SI, EN
Doc ID 17243 Rev 1
Application information
15/20