Overview
The LM4125IM5-2.5/NOPB is a precision micropower low dropout voltage reference produced by Texas Instruments. This device is part of the LM4125 series, which offers high accuracy and low power consumption, making it ideal for a variety of applications, particularly in battery-powered and portable devices. The LM4125IM5-2.5/NOPB operates with an input voltage range of 2V to 6V and provides a fixed output voltage of 2.5V with high output voltage accuracy.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Output Voltage Initial Accuracy | - | ±0.2% (A Grade), ±0.5% (Standard) | - | - | % |
| Temperature Coefficient | -40°C ≤ TA ≤ +125°C | 14 | 50 | - | ppm/°C |
| Line Regulation | 3.3V ≤ VIN ≤ 6V | 0.0007 | 0.008 | - | %/V |
| Load Regulation | 0 mA ≤ ILOAD ≤ 5 mA | 0.01 | 0.04 | - | %/mA |
| Dropout Voltage | ILOAD = 1 mA | 120 | 150 | 200 | mV |
| Supply Current | VIN = 3.3V, VOUT = 0 | 160 | 257 | 290 | µA |
| Output Noise Voltage | 0.1 Hz to 10 Hz | - | 20 | - | µVPP |
| Operating Temperature Range | - | -40°C | - | +85°C | °C |
| Package Type | - | - | SOT-23 (DBV) | - | - |
Key Features
- Precision Output Voltage: The LM4125IM5-2.5/NOPB offers high output voltage accuracy with initial accuracy of ±0.2% for the A grade and ±0.5% for the standard grade.
- Low Dropout Voltage: The device features a low dropout voltage of 120 mV typical at 1 mA load current.
- Low Supply Current: It consumes a low supply current of 160 µA typical.
- Source and Sink Current Capability: The device can source and sink up to ±5 mA of current.
- Low Temperature Coefficient: The temperature coefficient is 50 ppm/°C over the industrial temperature range.
- Power-Down Capability: The device current drops to less than 2 µA in power-down mode.
- Compact Package: Available in a small SOT-23 (DBV) package.
Applications
- Portable, Battery Powered Equipment: Ideal for battery-powered devices due to its low power consumption and low dropout voltage.
- Instrumentation and Process Control: Suitable for precision measurement and control systems.
- Automotive & Industrial: Used in various automotive and industrial applications requiring stable voltage references.
- Test Equipment: Employed in test and measurement equipment for stable voltage references.
- Data Acquisition Systems: Used in data acquisition systems for precise voltage referencing.
- Precision Regulators: Can be used as a reference in precision voltage regulators.
- Battery Chargers: Suitable for battery charging systems requiring stable voltage references.
- Medical Equipment: Used in medical devices where precise voltage references are critical.
- Communications and Base Stations: Employed in communication systems and base stations for stable voltage references.
Q & A
- What is the output voltage of the LM4125IM5-2.5/NOPB?
The output voltage of the LM4125IM5-2.5/NOPB is 2.5V.
- What is the typical dropout voltage of the LM4125IM5-2.5/NOPB at 1 mA load current?
The typical dropout voltage is 120 mV at 1 mA load current.
- What is the supply current of the LM4125IM5-2.5/NOPB?
The supply current is 160 µA typical.
- Can the LM4125IM5-2.5/NOPB source and sink current?
Yes, it can source and sink up to ±5 mA of current.
- What is the temperature coefficient of the LM4125IM5-2.5/NOPB?
The temperature coefficient is 50 ppm/°C over the industrial temperature range.
- What is the operating temperature range of the LM4125IM5-2.5/NOPB?
The operating temperature range is -40°C to +85°C.
- In what package is the LM4125IM5-2.5/NOPB available?
The device is available in a SOT-23 (DBV) package.
- What are some typical applications of the LM4125IM5-2.5/NOPB?
Typical applications include portable battery-powered equipment, instrumentation, automotive and industrial systems, test equipment, data acquisition systems, precision regulators, battery chargers, medical equipment, and communications systems.
- Does the LM4125IM5-2.5/NOPB have power-down capability?
Yes, the device current drops to less than 2 µA in power-down mode.
- What is the recommended output capacitor range for the LM4125IM5-2.5/NOPB?
The recommended output capacitor range is from 0.022µF to 0.1µF, with a minimum required capacitor of 0.022µF.
