Product overview
Description
The LDK320 is a low drop voltage regulator, which provides a maximum output current of 200 mA from an input voltage in the range of 2.5 V to 18 V, with a typical dropout voltage of 100 mV.
It is stabilized with a ceramic capacitor on the output.
The very good dynamic characteristic, combined with low drop voltage and low quiescent current make it suitable for low power battery-powered applications.
The enable logic control function allows the LDK320 to be in shutdown mode by consuming a total current lower than 1 μA.
This device also includes a short-circuit current limiting, thermal and SOA protections.
-
All features
- Input voltage from 2.5 to 18 V
- Very low-dropout voltage (100 mV typ. @ 100 mA load)
- Low quiescent current (typ. 60 μA, 1 μA in off mode)
- High PSRR: 88 dB@120 Hz
- Low noise
- Output voltage tolerance: ± 2.0% @ 25 °C; (±0.5% version available on request)
- Output current up to 200 mA
- Wide range of output voltages available on request: fixed from 1.2 V to 12 V with 100 mV step and adjustable
- Logic-controlled electronic shutdown
- Compatible with ceramic capacitor COUT = 1 μF
- Current, SOA and thermal protections
- Available in SOT23-5L and SOT-89 packages
- Temperature range: -40 °C to 125 °C
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STMicroelectronics - LDK320
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| LDK320ADU120R | Active | SOT-89 | Industrial | Ecopack2 | |
| LDK320ADU30R | Active | SOT-89 | Industrial | Ecopack2 | |
| LDK320ADU33R | Active | SOT-89 | Industrial | Ecopack2 | |
| LDK320ADU50R | Active | SOT-89 | Industrial | Ecopack2 | |
| LDK320AM-R | Active | SOT23-5L | Industrial | Ecopack2 | |
| LDK320AM120R | Active | SOT23-5L | Industrial | Ecopack2 | |
| LDK320AM15R | Active | SOT23-5L | Industrial | Ecopack2 | |
| LDK320AM18R | Preview | SOT23-5L | Industrial | Ecopack2 | |
| LDK320AM25R | Active | SOT23-5L | Industrial | Ecopack2 | |
| LDK320AM30R | Active | SOT23-5L | Industrial | Ecopack2 | |
| LDK320AM33R | Active | SOT23-5L | Industrial | Ecopack2 | |
| LDK320AM36R | Active | SOT23-5L | Industrial | Ecopack2 | |
| LDK320AM50R | Active | SOT23-5L | Industrial | Ecopack2 | |
| LDK320AU50R | Active | SOT-89 | Industrial | Ecopack2 | |
| LDK320M-R | Active | SOT23-5L | Industrial | Ecopack2 (**) | |
| LDK320M120R | Preview | SOT23-5L | Industrial | Ecopack2 | |
| LDK320M18R | Active | SOT23-5L | Industrial | Ecopack3 | |
| LDK320M25R | Active | SOT23-5L | Industrial | Ecopack3 | |
| LDK320M30R | Active | SOT23-5L | Industrial | Ecopack3 | |
| LDK320M33R | Active | SOT23-5L | Industrial | Ecopack2 | |
| LDK320M50R | Active | SOT23-5L | Industrial | Ecopack2 (**) |
LDK320ADU30R
Package:
SOT-89Material Declaration**:
LDK320AM15R
Package:
SOT23-5LMaterial Declaration**:
LDK320AM18R
Package:
SOT23-5LMaterial Declaration**:
LDK320AM36R
Package:
SOT23-5LMaterial Declaration**:
LDK320M120R
Package:
SOT23-5LMaterial Declaration**:
LDK320M33R
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) | Grade | Output Voltage (V) (nom) | Output Tolerance (typ) | Temperature (°C) | Output Current (A) (nom) | Grade | Output Voltage (V) (nom) | Output Tolerance (typ) | Operating Temperature (°C) (min) | Output Current (A) (nom) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||||||||||||
| LDK320AU50R | | | distributors No availability of distributors reported, please contact our sales office | SOT-89 | Tape and Reel | CHINA | EAR99 | NEC | Industrial | 5 | 0.5 | -40 | 125 | 0.2 | Industrial | 5 | 0.5 | -40 | 0.2 | |||
| LDK320AM18R | | | distributors No availability of distributors reported, please contact our sales office | SOT23-5L | Tape and Reel | MALAYSIA | EAR99 | NEC | Industrial | 1.8 | 0.5 | -40 | 125 | 0.2 | Industrial | 1.8 | 0.5 | -40 | 0.2 | |||
| LDK320M-R | | | distributors No availability of distributors reported, please contact our sales office | SOT23-5L | Tape and Reel | CHINA | EAR99 | NEC | Industrial | - | 2 | -40 | 125 | 0.2 | Industrial | - | 2 | -40 | 0.2 | |||
| LDK320AM120R | | | distributors No availability of distributors reported, please contact our sales office | SOT23-5L | Tape and Reel | MALAYSIA | EAR99 | NEC | Industrial | 12 | 0.5 | -40 | 125 | 0.2 | Industrial | 12 | 0.5 | -40 | 0.2 | |||
| LDK320M25R | | | distributors No availability of distributors reported, please contact our sales office | SOT23-5L | Tape and Reel | MALAYSIA | EAR99 | NEC | Industrial | 2.5 | 2 | -40 | 125 | 0.2 | Industrial | 2.5 | 2 | -40 | 0.2 | |||
| LDK320M120R | | | distributors No availability of distributors reported, please contact our sales office | SOT23-5L | Tape and Reel | MALAYSIA | EAR99 | NEC | Industrial | 12 | 2 | -40 | 125 | 0.2 | Industrial | 12 | 2 | -40 | 0.2 | |||
| LDK320AM50R | | | distributors No availability of distributors reported, please contact our sales office | SOT23-5L | Tape and Reel | CHINA | EAR99 | NEC | Industrial | 5 | 0.5 | -40 | 125 | 0.2 | Industrial | 5 | 0.5 | -40 | 0.2 | |||
| LDK320AM25R | | | distributors No availability of distributors reported, please contact our sales office | SOT23-5L | Tape and Reel | MALAYSIA | EAR99 | NEC | Industrial | 2.5 | 0.5 | -40 | 125 | 0.2 | Industrial | 2.5 | 0.5 | -40 | 0.2 | |||
| LDK320AM30R | | | distributors No availability of distributors reported, please contact our sales office | SOT23-5L | Tape and Reel | MALAYSIA | EAR99 | NEC | Industrial | 3 | 0.5 | -40 | 125 | 0.2 | Industrial | 3 | 0.5 | -40 | 0.2 | |||
| LDK320M33R | | | distributors No availability of distributors reported, please contact our sales office | SOT23-5L | Tape and Reel | CHINA | EAR99 | NEC | Industrial | 3.3 | 2 | -40 | 125 | 0.2 | Industrial | 3.3 | 2 | -40 | 0.2 | |||
| LDK320AM15R | | | distributors No availability of distributors reported, please contact our sales office | SOT23-5L | Tape and Reel | MALAYSIA | EAR99 | NEC | Industrial | 1.5 | 0.5 | -40 | 125 | 0.2 | Industrial | 1.5 | 0.5 | -40 | 0.2 | |||
| LDK320ADU30R | | | distributors No availability of distributors reported, please contact our sales office | SOT-89 | Tape and Reel | CHINA | EAR99 | NEC | Industrial | 3 | 0.5 | -40 | 125 | 0.2 | Industrial | 3 | 0.5 | -40 | 0.2 | |||
| LDK320M50R | | | distributors No availability of distributors reported, please contact our sales office | SOT23-5L | Tape and Reel | CHINA | EAR99 | NEC | Industrial | 5 | 2 | -40 | 125 | 0.2 | Industrial | 5 | 2 | -40 | 0.2 | |||
| LDK320AM36R | | | distributors No availability of distributors reported, please contact our sales office | SOT23-5L | Tape and Reel | MALAYSIA | EAR99 | NEC | Industrial | 3.6 | 0.5 | -40 | 125 | 0.2 | Industrial | 3.6 | 0.5 | -40 | 0.2 | |||
| LDK320AM33R | | | distributors No availability of distributors reported, please contact our sales office | SOT23-5L | Tape and Reel | CHINA | EAR99 | NEC | Industrial | 3.3 | 0.5 | -40 | 125 | 0.2 | Industrial | 3.3 | 0.5 | -40 | 0.2 | |||
| LDK320ADU50R | | | distributors No availability of distributors reported, please contact our sales office | SOT-89 | Tape and Reel | CHINA | EAR99 | NEC | Industrial | 5 | 0.5 | -40 | 125 | 0.2 | Industrial | 5 | 0.5 | -40 | 0.2 | |||
| LDK320M30R | | | distributors No availability of distributors reported, please contact our sales office | SOT23-5L | Tape and Reel | MALAYSIA | EAR99 | NEC | Industrial | 3 | 2 | -40 | 125 | 0.2 | Industrial | 3 | 2 | -40 | 0.2 | |||
| LDK320ADU33R | | | distributors No availability of distributors reported, please contact our sales office | SOT-89 | Tape and Reel | CHINA | EAR99 | NEC | Industrial | 3.3 | 2 | -40 | 125 | 0.2 | Industrial | 3.3 | 2 | -40 | 0.2 | |||
| LDK320AM-R | | | distributors No availability of distributors reported, please contact our sales office | SOT23-5L | Tape and Reel | CHINA | EAR99 | NEC | Industrial | - | 0.5 | -40 | 125 | 0.2 | Industrial | - | 0.5 | -40 | 0.2 | |||
| LDK320ADU120R | | | distributors No availability of distributors reported, please contact our sales office | SOT-89 | Tape and Reel | CHINA | EAR99 | NEC | Industrial | 12 | 0.5 | -40 | 125 | 0.2 | Industrial | 12 | 0.5 | -40 | 0.2 | |||
| LDK320M18R | | | distributors No availability of distributors reported, please contact our sales office | SOT23-5L | Tape and Reel | MALAYSIA | EAR99 | NEC | Industrial | 1.8 | 2 | -40 | 125 | 0.2 | Industrial | 1.8 | 2 | -40 | 0.2 | |||
LDK320AU50R Active
LDK320AM18R Preview
LDK320M-R Active
LDK320AM120R Active
LDK320M25R Active
LDK320M120R Preview
LDK320AM50R Active
LDK320AM25R Active
LDK320AM30R Active
LDK320M33R Active
LDK320AM15R Active
LDK320ADU30R Active
LDK320M50R Active
LDK320AM36R Active
LDK320AM33R Active
LDK320ADU50R Active
LDK320M30R Active
LDK320ADU33R Active
LDK320AM-R Active
LDK320ADU120R Active
LDK320M18R 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