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The LD2979 is a very low drop regulator available in SOT23-5L.
The very low drop-voltage and the very low quiescent current make them particularly suitable for low noise, low power applications and in battery powered systems.
Shutdown logic control function is available on five pin version (TTL compatible). This means that when the device is used as local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption.Key Features
- Very low dropout voltage (0.2 V typ. at 50 mA load)
- Very low quiescent current (typ. 500 μA at 50 mA load)
- Output current up to 50 mA
- Logic-controlled electronic shutdown
- Output voltages of 3.0 and 3.3 V
- Internal current and thermal limit
- Supply voltage rejection: 63 dB (typ)
- Only 1 μF for stability
- Temperature range: -25 °C to 125 °C
- Package available: SOT23-5L
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| LD2979M30TR | NRND | SOT23-5L | Industrial | Ecopack2 | |
| LD2979M33TR | NRND | SOT23-5L | Industrial | Ecopack2 |
(**) 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 | Order from Distributors | Order from ST | Marketing Status | ECCN (US) | ECCN (EU) | Packing Type | Package | Temperature (°C) | Output Voltage (V) (nom) | Output Tolerance (typ) | Output Current (A) (nom) | Country of Origin | Budgetary Price (US$)*/Qty | More info | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||||||
| LD2979M30TR | 1 distributors | Buy now | NRND | EAR99 | NEC | Tape And Reel | SOT23-5L | -25 | 125 | 3 | 2 | 0.05 | MALAYSIA | 0.224 / 1k | ||
| LD2979M33TR | No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tape And Reel | SOT23-5L | -25 | 125 | 3.3 | 2 | 0.05 | MALAYSIA | 0.224 / 1k | |||
Marketing Status
NRNDECCN (US)
EAR99Budgetary Price (US$)*/Qty
0.224 / 1k(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
