NCP561SN50T1G ON Semiconductor, NCP561SN50T1G Datasheet - Page 8

• Manufacturer Part Number: NCP561SN50T1G
• Description: IC REG LDO 150MA 5.0V SOT23-5
• Manufacturer: ON Semiconductor

Specifications of NCP561SN50T1G

• Regulator Topology: Positive Fixed
• Voltage - Output: 5V
• Voltage - Input: Up to 6V
• Voltage - Dropout (typical): 0.12V @ 150mA
• Number Of Regulators: 1
• Current - Output: 150mA (Min)
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: TSOT-23-5, TSOT-5, TSOP-5
• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 6 V
• Output Voltage: 5 V
• Output Type: Fixed
• Dropout Voltage (max): 0.19 V at 150 mA
• Output Current: 150 mA
• Line Regulation: 20 mV
• Load Regulation: 60 mV
• Voltage Regulation Accuracy: 2 %
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: NCP561SN50T1GOS

Input
Enable
The NCP561 series can be current boosted with a PNP transist‐
or. Resistor R in conjunction with V
when the pass transistor begins conducting; this circuit is not
short circuit proof. Input/Output differential voltage minimum is
increased by V
If a delayed turn-on is needed during power up of several
voltages then the above schematic can be used. Resistor R,
and capacitor C, will delay the turn-on of the bottom regulator.
R
1.0 mF
Input
Figure 14. Current Boost Regulator
Q1
Figure 16. Delayed Turn-on
BE
R
of the pass resistor.
1.0 mF
1.0 mF
C
1
2
3
1
2
3
1
2
3
BE
of the PNP determines
5
4
5
4
5
4
1.0 mF
APPLICATION CIRCUITS
Output
1.0 mF
1.0 mF
Output
Output
http://onsemi.com
Input
NCP561
Q2
8
Input
A regulated output can be achieved with input voltages that
exceed the 6.0 V maximum rating of the NCP561 series with
the addition of a simple pre-regulator circuit. Care must be
taken to prevent Q1 from overheating when the regulated
output (V
Short circuit current limit is essentially set by the V
R1. I
R
Figure 17. Input Voltages Greater than 6.0 V
R1
R2
5.6 V
SC
= ((V
OUT
Figure 15. Current Boost Regulator
Q1
) is shorted to GND.
BEQ2
1.0 mF
R3
1.0 mF
with Short Circuit Limit
- ib * R2) / R1) + I
Q1
1
2
3
1
2
3
O(max) Regulator
5
4
BE
5
4
of Q2 and
1.0 mF
Output
Output
1.0 mF