LK112M18TR STMicroelectronics

LK112 Low noise and low drop voltage regulator with shutdown function Datasheet - production data Internal current and thermal limit Operative input voltage from: V + 0.5 to 14 V (for V > 2 V) or from OUT OUT 2.5 V to 14 V (for V < 2 V) OUT Description SOT23-5L The LK112 is a low-dropout linear regulator with a built-in electronic switch. The internal switch can be controlled by TTL or CMOS logic levels. The device is on-state when the control pin is pulled to a logic high level. An external capacitor can be connected to the noise bypass pin to reduce the Features output noise level to 30 Vrms. An internal PNP Output current up to 150 mA pass transistor is used to achieve a low-dropout voltage. The LK112 has a very low quiescent Low-dropout voltage (350 mV at I = 150 OUT current in on mode while in off mode I is reduced mA) q below 100 nA max. The internal thermal Very low quiescent current: shutdown circuitry limits the junction temperature 0.1 A in OFF mode and max. 250 A in below 150 C. Load current is internally monitored ON mode at I = 0 mA OUT and the device shuts down in the presence of a Low output noise: short-circuit or overcurrent condition on the output. typ. 30 V at I = 60 mA and 10 Hz < f < OUT 80 kHz Wide range of output voltages Table 1. Device summary Order codes Output voltages LK112M15TR 1.5V LK112M18TR 1.8V LK112M25TR 2.5V LK112M33TR 3.3V LK112M50TR 5.0V LK112M55TR 5.5V LK112M60TR 6.0V LK112M80TR 8.0V April 2014 DocID7362 Rev 17 1/18 This is information on a product in full production. www.st.comContents LK112 Contents 1 Diagram . 3 2 Pin configuration . 4 3 Maximum ratings 5 4 Electrical characteristics . 6 5 Typical characteristics . 7 6 Package mechanical data 13 7 Packaging mechanical data 15 8 Revision history . 17 2/18 DocID7362 Rev 17