Product overview
Description
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 output noise level to 30 μVrms. An internal PNP pass transistor is used to achieve a low-dropout voltage. The LK112 has a very low quiescent current in on mode while in off mode Iqis reduced below 100 nA max. The internal thermal shutdown circuitry limits the junction temperature below 150 °C. Load current is internally monitored and the device shuts down in the presence of a short-circuit or overcurrent condition on the output.
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All features
- Output current up to 150 mA
- Low-dropout voltage (350 mV at IOUT= 150 mA)
- Very low quiescent current:
- 0.1 μA in OFF mode and max. 250 μA in ON mode at IOUT= 0 mA
- Low output noise:
- typ. 30 μV at IOUT= 60 mA and 10 Hz < f < 80 kHz
- Wide range of output voltages
- Internal current and thermal limit
- Operative input voltage from:
- VOUT+ 0.5 to 14 V (for VOUT> 2 V) or from 2.5 V to 14 V (for VOUT< 2 V)
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STMicroelectronics - LK112
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| LK112M15TR | Active | SOT23-5L | Industrial | Ecopack2 | |
| LK112M18TR | Active | SOT23-5L | Industrial | Ecopack2 | |
| LK112M25TR | Active | SOT23-5L | Industrial | Ecopack2 | |
| LK112M33TR | Active | SOT23-5L | Industrial | Ecopack2 | |
| LK112M50TR | Active | SOT23-5L | Industrial | Ecopack2 | |
| LK112M60TR | Active | SOT23-5L | Industrial | Ecopack2 | |
| LK112M80TR | Active | SOT23-5L | Industrial | Ecopack2 |
LK112M18TR
Package:
SOT23-5LMaterial Declaration**:
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | Grade | Output Voltage (V) (nom) | Output Tolerance (typ) | Output Current (A) (nom) | ||
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| LK112M33TR | | | distributors No availability of distributors reported, please contact our sales office |
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| LK112M50TR | | | distributors No availability of distributors reported, please contact our sales office |
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| LK112M80TR | | | distributors No availability of distributors reported, please contact our sales office |
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| LK112M60TR | | | distributors No availability of distributors reported, please contact our sales office |
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| LK112M15TR | | | distributors No availability of distributors reported, please contact our sales office |
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| LK112M25TR | | | distributors No availability of distributors reported, please contact our sales office |
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| LK112M18TR | | | distributors No availability of distributors reported, please contact our sales office |
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LK112M33TR Active
LK112M50TR Active
LK112M80TR Active
LK112M60TR Active
LK112M15TR Active
LK112M25TR Active
LK112M18TR Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors