TS2950CT-5.0 A3 Taiwan Semiconductor, TS2950CT-5.0 A3 Datasheet - Page 5

• Manufacturer Part Number: TS2950CT-5.0 A3
• Description: IC, V REG LDO +5.0V, 2950, TO-92-3
• Manufacturer: Taiwan Semiconductor

Specifications of TS2950CT-5.0 A3

• Primary Input Voltage: 15V
• Output Voltage: 5V
• Dropout Voltage Vdo: 400mV
• No. Of Pins: 3
• Output Current: 150mA
• Voltage Regulator Case Style: TO-92
• Operating Temperature Range: -20°C To +85°C
• Svhc: No
• Output Voltage Fixed: 5V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Application Hints (continued)
Programming The output Voltage
The TS2951/A output voltage is programmable for any
value from it reference voltage of 1.235V and it maximum
rating of 30V. For example for 5 volt needs to
pin-strapped and using the internal voltage divider by
tying pin 1 to 2 and pin 7 to pin 6. Refer to Figure 2, there
are two external resistor required for this programming.
Refer to the below equation for the programming the
output voltage:
Volt=Vref x (1+R1\R2)+I
* R1
FB
The Vref is 1.235V and I
is the feedback bias current,
FB
nominally -20nA. The minimum recommended load
current of 1uA forces an upper limit of 1.2MΩon value of
R2, If no load presented the I
produces error of typically
FB
2% in Vout which maybe eliminated at room temperature
by trimming R1. To improve the accuracy chooses the
value of R2=100K and this reduces the error by 0.17%
Figure 2. Adjust Voltage
and increases the resistor program current by 12uA. The
TS2951/A typically draw 60uA at no load with pin 2
open-circuit, and this value does not look much.
Block Diagram and Typical Applications Circuit
TS2950-51 series
5-6
2003/12 rev. A