Overview
The LM285D-2.5G 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 of 10 μA to 20 mA. It features exceptionally low dynamic impedance, low noise, and stable operation over time and temperature. The LM285D-2.5G is available in a surface mount SOIC-8 package and is specified over a temperature range of -40°C to +85°C, making it ideal for micropower circuitry such as portable instrumentation, regulators, and other analog circuitry where extended battery life is crucial.
Key Specifications
| Characteristic | Symbol | Value | Unit |
|---|---|---|---|
| Reverse Breakdown Voltage | V(BR) | 2.500 V | V |
| Operating Current Range | I_R | 10 μA to 20 mA | A |
| Operating Ambient Temperature Range | T_A | -40°C to +85°C | °C |
| Operating Junction Temperature | T_J | +150°C | °C |
| Storage Temperature Range | T_stg | -65°C to +150°C | °C |
| Dynamic Impedance | Z | 0.6 Ω (typical at I_R = 100 μA) | Ω |
| Average Temperature Coefficient | ΔV(BR)/ΔT | 80 ppm/°C (typical) | ppm/°C |
| Wideband Noise (RMS) | n | 120 μV (typical, 10 Hz to 10 kHz) | μV |
| Initial Accuracy | - | ±1.5% (typical) | % |
| Package Type | - | SOIC-8 | - |
Key Features
- Exceptionally low dynamic impedance and low noise.
- Stable operation over time and temperature.
- Tight voltage tolerances achieved by on-chip trimming.
- Wide dynamic operating range, suitable for applications with varying supplies.
- Extremely low operating current, ideal for micropower circuitry.
- Available in two voltage versions: 1.235 V and 2.500 V.
- Pb-free packages available.
- Surface mount SOIC-8 package.
Applications
- Portable instrumentation.
- Voltage regulators.
- Analog circuitry requiring extended battery life.
- Micropower circuitry.
- Applications with widely varying power supplies.
Q & A
- What is the operating current range of the LM285D-2.5G?
The operating current range is from 10 μA to 20 mA.
- What are the available voltage versions for the LM285 series?
The LM285 series is available in two voltage versions: 1.235 V and 2.500 V.
- What is the temperature range for the LM285D-2.5G?
The operating ambient temperature range is -40°C to +85°C.
- What is the typical dynamic impedance of the LM285D-2.5G?
The typical dynamic impedance is 0.6 Ω at I_R = 100 μA.
- What is the average temperature coefficient of the LM285D-2.5G?
The average temperature coefficient is 80 ppm/°C.
- What is the wideband noise (RMS) of the LM285D-2.5G?
The wideband noise (RMS) is 120 μV from 10 Hz to 10 kHz.
- What package type is the LM285D-2.5G available in?
The LM285D-2.5G is available in a surface mount SOIC-8 package.
- Is the LM285D-2.5G Pb-free?
- What are some typical applications for the LM285D-2.5G?
- How does the LM285D-2.5G achieve tight voltage tolerances?
