ncv4299a ON Semiconductor, ncv4299a Datasheet - Page 2

• Manufacturer Part Number: ncv4299a
• Description: Ncv4299a 150 Ma Low-dropout Voltage Regulator
• Manufacturer: ON Semiconductor

PIN FUNCTION DESCRIPTION
Pin
10
11
12
13
14
1
2
3
4
5
6
7
8
9
RADJ
INH
SI
I
Symbol
RADJ
GND
GND
GND
GND
GND
GND
INH
RO
SO
SI
D
Q
I
Reference
Bandgap
Reset Adjust. Use resistor divider to Q to adjust reset threshold lower. Connect to GND if not used.
Reset Delay. Connect external capacitor to ground to set delay time.
Ground.
Ground.
Ground.
Inhibit. Connect to I if not needed. A high turns the regulator on. Use a low pass filter if transients with slew
rate in excess of 10 V/ms may be present on this pin during operation. See Figure 18 for details.
Reset Output. NPN collector output with internal 20 kW pullup to Q. Notifies user of out of regulation
condition.
Sense Output. NPN collector output with internal 20 kW pullup to Q. Can be used to provide early warning
of an impending reset condition.
5.0 V, "2%, 150 mA output. Use 22 mF, ESR t 8.0 W to ground.
Ground.
Ground.
Ground.
Input. Battery Supply Input Voltage.
Sense Input. Can provide an early warning signal of an impending reset condition when used with SO.
1.36 V
Figure 1. Simplified Block Diagram
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http://onsemi.com
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2
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Description
Current Limit and
Saturation Sense
D
8 mA
1.85 V
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GND
R
SO
R
RO
Q
SO
RO