L78M09CP STMicroelectronics, L78M09CP Datasheet - Page 18
![IC REG POS 500MA 9V PREC TO220FP](/photos/5/30/53057/to-220_fp_sml.jpg)
L78M09CP
Manufacturer Part Number
L78M09CP
Description
IC REG POS 500MA 9V PREC TO220FP
Manufacturer
STMicroelectronics
Specifications of L78M09CP
Regulator Topology
Positive Fixed
Voltage - Output
9V
Voltage - Input
Up to 35V
Voltage - Dropout (typical)
2V @ 350mA
Number Of Regulators
1
Current - Output
500mA
Operating Temperature
0°C ~ 125°C
Mounting Type
Through Hole
Package / Case
TO-220-3 Full Pack (Straight Leads)
Polarity
Positive
Number Of Outputs
1
Output Type
Fixed
Output Voltage
9 V
Output Current
0.5 A
Line Regulation
100 mV
Load Regulation
180 mV
Dropout Voltage (max)
2 V
Input Voltage Max
35 V
Maximum Operating Temperature
+ 150 C
Minimum Operating Temperature
0 C
Mounting Style
Through Hole
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
L78M09CP
Manufacturer:
SANYO
Quantity:
15 920
Applications information
Figure 19. Current boost regulator
Figure 20. Short-circuit protection
Note:
18/29
R
I
O
1
= I
= ______________
REG
I
REQ
+ Q
The circuit of
by adding a short-circuit sense resistor, R
sensing PNP must be able to handle the short-circuit current of the three-terminal regulator.
Therefore, a four ampere plastic power transistor is specified.
V
-(I
BEQ1
Q1
1
(I
/b
REG
Q1
)
______)
V
BEQ1
R
Figure 19
1
can be modified to provide supply protection against short-circuits
Doc ID 2147 Rev 10
SC
, and an additional PNP transistor. The current
L78MxxAB, L78MxxAC