Product overview
Description
The LD2985 is a 150 mA fixed output voltage regulator. The ultra low drop voltage and the low quiescent current make them particularly suitable for low noise, low power applications, and in battery powered systems. In sleep mode quiescent current is less than 1 μA when INHIBIT pin is pulled low. Shutdown logic control function is available on pin 3 (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. An external capacitor, CBYP= 10 nF, connected between bypass pin and GND reduces the noise to 30 μVrms. Typical application are in cellular phone, palmtop laptop computer, personal digital assistant (PDA), personal stereo, camcorder and camera.
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All features
- Very low dropout voltage (280 mV at 150 mA and 7 mV at 1 mA load)
- Very low quiescent current (2 mA typ. at 150 mA load and 80 μA at no load)
- Output current up to 150 mA
- Logic controlled electronic shutdown
- Output voltage of 1.8, 2.5, 2.8, 3, 3.1, 3.3, 5 V
- Internal current and thermal limit
- Low output noise voltage 30 μVrms
- Small package SOT23-5L
- Temperature range: - 40 °C to 125 °C
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STMicroelectronics - LD2985
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| LD2985BM18R | Active | SOT23-5L | Industrial | Ecopack2 | |
| LD2985BM25R | Active | SOT23-5L | Industrial | Ecopack2 | |
| LD2985BM28R | Active | SOT23-5L | Industrial | Ecopack2 | |
| LD2985BM30R | Active | SOT23-5L | Industrial | Ecopack2 | |
| LD2985BM31R | Active | SOT23-5L | Industrial | Ecopack2 | |
| LD2985BM33R | Active | SOT23-5L | Industrial | Ecopack2 | |
| LD2985BM50R | Active | SOT23-5L | Industrial | Ecopack2 (**) |
LD2985BM31R
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 | Order from distributors | Order from ST | Marketing Status | Grade | 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$)*/Qty | Output Voltage (V) (nom) | Output Tolerance (typ) | Output Current (A) (nom) | Unit Price (US$) | Country of Origin | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | ||||||||||||||||||||
| LD2985BM25R | distributors No availability of distributors reported, please contact our sales office | Active | Industrial | EAR99 | NEC | Tape and Reel | SOT23-5L | -40 | 125 | 2.5 | 2.5 | 0.15 | CHINA | | 2.5 | 2.5 | 0.15 | 0.2527 | CHINA | ||
| LD2985BM31R | distributors No availability of distributors reported, please contact our sales office | Active | Industrial | EAR99 | NEC | Tape and Reel | SOT23-5L | -40 | 125 | 3.1 | 1.5 | 0.15 | CHINA | | 3.1 | 1.5 | 0.15 | 0.2106 | CHINA | ||
| LD2985BM28R | distributors No availability of distributors reported, please contact our sales office | Active | Industrial | EAR99 | NEC | Tape and Reel | SOT23-5L | -40 | 125 | 2.8 | 2.5 | 0.15 | CHINA | | 2.8 | 2.5 | 0.15 | 0.2527 | CHINA | ||
| LD2985BM50R | distributors No availability of distributors reported, please contact our sales office | Active | Industrial | EAR99 | NEC | Tape and Reel | SOT23-5L | -40 | 125 | 5 | 2.5 | 0.15 | CHINA | | 5 | 2.5 | 0.15 | 0.2527 | CHINA | ||
| LD2985BM33R | distributors No availability of distributors reported, please contact our sales office | Active | Industrial | EAR99 | NEC | Tape and Reel | SOT23-5L | -40 | 125 | 3.3 | 2.5 | 0.15 | CHINA | | 3.3 | 2.5 | 0.15 | 0.2527 | CHINA | ||
| LD2985BM18R | distributors No availability of distributors reported, please contact our sales office | Active | Industrial | EAR99 | NEC | Tape and Reel | SOT23-5L | -40 | 125 | 1.8 | 2.5 | 0.15 | CHINA | | 1.8 | 2.5 | 0.15 | 0.2527 | CHINA | ||
| LD2985BM30R | distributors No availability of distributors reported, please contact our sales office | Active | Industrial | EAR99 | NEC | Tape and Reel | SOT23-5L | -40 | 125 | 3 | 2.5 | 0.15 | CHINA | | 3 | 2.5 | 0.15 | 0.2527 | CHINA | ||
(*) 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