Taiwan Semiconductor Co', Ltd'

1
ULDO Driver IC Application Note
TSC P/N TS1123CX5xx Series Package SOT-25

• Description
• Input Voltage 35V (max.)
• Driving Current 200mA
• Dropout Voltage 0.4V
• Output Voltage Option
• 3.3V / 5V / 8V / 9V / 12V / 15V
• Thermal Shutdown
• Short Circuit Protection
• With Output Enable Function

New Release
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ULDO Driver IC Application Note
Typical Application Circuit
Selection of recommended PNP-Transistors for 1A
to 4A-circuits on next page
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ULDO Driver IC Application Note

• Ordering Information
• TS1123CX533 3.3V
• TS1123CX550 5V
• TS1123CX580 8V
• TS1123CX590 9V
• TS1123CX512 12V
• TS1123CX515 15V

• Recommended PNP-Transistor
• TSB1132CY (SOT-89) for 1A application circuit
• TSB1424CY (SOT-89) for 2A application circuit
• TSB1184CP (TO-252) for 3A application circuit
• TSB1412CP (TO-252) for 4A application circuit

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ULDO Driver IC Application Note

• Advantages
• Cost reduction
• PCB space reduction
• Flexible design for each different output current
  by different application
• Optimized logistic handling because less parts
  required