Product Summary

The LF50CDT-TR is a very Low Drop regulator in a wide range of output voltages. The very Low Drop voltage (0.45V) and the very low quiescent current make the LF50CDT-TR particularly suitable for Low Noise, Low Power applications and specially in battery powered systems. In the 5 pins configuration (PENTAWATT and PPAK) a Shutdown Logic Control function is available (pin 2, TTL compatible). This means that when the LF50CDT-TR is used as a local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. In the three terminal configuration the device has the same electrical performance, but is fixed in the ON state. The LF50CDT-TR requires only a 2.2 μF capacitor for stability allowing space and cost saving.

Parametrics

LF50CDT-TR absolute maximum ratings: (1)VI, DC input voltage: -0.5 to 40 V; (2)TSTG, Storage temperature range: -40 to 150℃; (3)TOP, Operating junction temperature range: -40 to 125℃.

Features

LF50CDT-TR features: (1)Very low dropout voltage (0.45V); (2)Very low quiescent current (typ. 50 μA in OFF mode, 500 μA in ON mode); (3)Output current up to 500 mA; (4)Logic-controlled electronic shutdown; (5)Output voltages of 1.5; 1.8; 2.5; 2.7; 3; 3.3; 3.5; 5; 6; 8; 8.5; 9; 12V; (6)Internal current and thermal limit; (7)Only 2.2 μF for stability; (8)Available in ± 1% (AB) or ± 2% (C) selection at 25℃; (9)Supply voltage rejection: 80db (typ.); (10)Temperature range: -40 to 125℃.

Diagrams

LF50CDT-TR block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LF50CDT-TR
LF50CDT-TR
STMicroelectronics
Low Dropout (LDO) Regulators 5.0V 0.5A Positive
Data Sheet
0-1: $0.77
1-10: $0.65
10-100: $0.56
100-250: $0.52
LF50CDT-TRY
LF50CDT-TRY

IC REG LDO 5V .5A DPAK
Data Sheet
0-1: $0.97
1-10: $0.87
10-25: $0.78
25-100: $0.70
100-250: $0.62
250-500: $0.54
500-1000: $0.45