ncv4949a ON Semiconductor, ncv4949a Datasheet - Page 6
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ncv4949a
Manufacturer Part Number
ncv4949a
Description
Ncv4949a 100 Ma, 5.0 V, Low Dropout Voltage Regulator With Reset And Sense
Manufacturer
ON Semiconductor
Datasheet
1.NCV4949A.pdf
(9 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ncv4949aDR2G
Manufacturer:
ON Semiconductor
Quantity:
2
Part Number:
ncv4949aDR2G
Manufacturer:
ON/安森美
Quantity:
20 000
Supply Voltage Transient
signal perturbation. For supply voltages greater than 8.0 V
the circuit shows a high immunity of the reset output against
supply transients of more than 100 V/ms. For supply voltages
NOTE:
V
High supply voltage transients can cause a reset output
bat
1. For stability: C
2. Recommended for application: C
By using higher C
C
s
V
s
CC
S
1
2
1.0 mF, C
i
s
it is possible to use higher C
V
CC
O
Regulator
4.7 mF, ESR < 10 Ω at 10 kHz
Preregulator
s
1.23 V
= 10 mF, C
(optional)
6.0 V
APPLICATION INFORMATION
Figure 14. Application Schematic
V
Z
ref
http://onsemi.com
O
= 10 mF to 74 mF @ T
C3
O
.
3
6
less than 8.0 V supply transients of more than 0.4 V/ms can
cause a reset signal perturbation. To improve the transient
behavior for supply voltages less than 8.0 V a capacitor at
Pin 3 can be used. A capacitor at Pin 3 (C3 1.0 mF) also
reduces the output noise.
V
5
out
Reset
GND
8
C
2.0 mA
O
A
= 125C
Sense
C
T
4
+
--
+
--
2.0 V
1.23 V
6
7
R
SO
10 kΩ
10 kΩ
V
Reset
out
S
o