Product overview
Description
The LDO40L is a 400 mA LDO regulator, designed for being used in severe automotive environments.
Low quiescent current makes it suitable for applications permanently connected to battery. This feature is especially critical when electronic modules remain in active mode when ignition is off.
The LDO40L embeds protection functions, such as: current limit and thermal shutdown.
The extended input voltage range, low drop voltage and low quiescent current features make it suitable also for low power industrial and consumer applications.
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All features
- Low quiescent current: typ. 45 µA at no load
- Wide input voltage operating range up to 38 V
- Low startup voltage: 3.5 V
- Output current up to 400 mA
- Output voltage options: Adj from 2.5 V and fixed, 3.0, 3.3, 5.0 and 8.5 V
- Output voltage accuracy:
- ± 1% typ. @ 25 °C
- ± 3% (including line, load and temperature variation)
- Ultra low-dropout:
- 36 mV @ 100 mA load current
- 140 mV @ 400 mA load current
- High PSRR: 70 dB @ 1 kHz
- Very low noise: 20 µVRMS/VOUT
- Protection features: current limitation, thermal shutdown
- -40 °C to +125 °C operating temperature range
- Package: DFN6 (3x3) (wettable flanks)
- AEC-Q100 qualified (grade 1)
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STMicroelectronics - LDO40L
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| LDO40LPU33RY | Active | DFN6 3x3 | Automotive | Ecopack2 | |
| LDO40LPU50RY | Active | DFN6 3x3 | Automotive | Ecopack3 | |
| LDO40LPURY | Active | DFN6 3x3 | Automotive | 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 | 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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| LDO40LPU33RY | | | distributors No availability of distributors reported, please contact our sales office |
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| LDO40LPU50RY | | | distributors No availability of distributors reported, please contact our sales office |
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| LDO40LPURY | | | distributors No availability of distributors reported, please contact our sales office |
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LDO40LPU33RY Active
LDO40LPU50RY Active
LDO40LPURY 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