Overview
The LM385BD-1.2R2G is a micropower two-terminal bandgap voltage regulator diode produced by onsemi. This device is part of the LM285/LM385 series, designed to operate over a wide current range from 10 μA to 20 mA. It features exceptionally low dynamic impedance, low noise, and stable operation over time and temperature. The LM385BD-1.2R2G is specifically rated for an operating temperature range of 0°C to +70°C and is available in a surface mount SOIC-8 package.
Key Specifications
| Characteristic | Symbol | Unit | Min | Max | |
|---|---|---|---|---|---|
| Reverse Breakdown Voltage | V(BR)R | V | 1.223 | 1.235 | 1.247 |
| Minimum Operating Current | IRmin | μA | 8.0 | - | 20 |
| Reverse Dynamic Impedance | Z | Ω | - | 0.6 | - |
| Average Temperature Coefficient | ΔV(BR)/ΔT | ppm/°C | - | 80 | - |
| Wideband Noise (RMS) | n | μV | - | 120 | - |
| Long Term Stability | S | ppm/kHR | - | 20 | - |
| Operating Ambient Temperature Range | TA | °C | 0 | - | 70 |
| Operating Junction Temperature | TJ | °C | - | - | 150 |
| Storage Temperature Range | Tstg | °C | -65 | - | 150 |
| Electrostatic Discharge Sensitivity (HBM) | ESD | V | - | - | 4000 |
Key Features
- Operating current from 10 μA to 20 mA
- 1.0%, 1.5%, 2.0%, and 3.0% initial tolerance grades
- Low temperature coefficient
- Low dynamic impedance (approximately 0.6 Ω)
- Available in surface mount SOIC-8 package
- Pb-free and RoHS compliant
Applications
The LM385BD-1.2R2G is ideal for use in micropower circuitry, including portable instrumentation, regulators, and other analog circuitry where extended battery life is required. Its stable operation over a wide temperature range and low noise characteristics make it suitable for applications requiring precise voltage regulation.
Q & A
- What is the operating temperature range of the LM385BD-1.2R2G?
The operating temperature range is from 0°C to +70°C.
- What are the available voltage versions for the LM385 series?
The LM385 series is available in voltage versions of 1.235 V and 2.500 V.
- What is the minimum operating current for the LM385BD-1.2R2G?
The minimum operating current is 8.0 μA.
- What is the reverse dynamic impedance of the LM385BD-1.2R2G?
The reverse dynamic impedance is approximately 0.6 Ω.
- Is the LM385BD-1.2R2G Pb-free and RoHS compliant?
Yes, the device is Pb-free and RoHS compliant.
- What is the storage temperature range for the LM385BD-1.2R2G?
The storage temperature range is from -65°C to +150°C.
- What is the electrostatic discharge sensitivity (HBM) of the LM385BD-1.2R2G?
The electrostatic discharge sensitivity (HBM) is up to 4000 V.
- In what package is the LM385BD-1.2R2G available?
The device is available in a surface mount SOIC-8 package.
- What are some typical applications for the LM385BD-1.2R2G?
Typical applications include portable instrumentation, regulators, and other analog circuitry where extended battery life is required.
- What is the wideband noise (RMS) of the LM385BD-1.2R2G?
The wideband noise (RMS) is approximately 120 μV.
