Overview
The TPS7A0333PDBVR is an ultra-small, ultra-low quiescent current low-dropout linear regulator (LDO) from Texas Instruments. This device is designed to source up to 200 mA with excellent transient performance, making it ideal for battery-powered applications where low quiescent current is critical. The TPS7A0333PDBVR operates over a wide temperature range of -40°C to +125°C and features an output voltage range of 0.8 V to 5.0 V in 50-mV steps, supporting the lower core voltages of modern microcontrollers (MCUs).
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Current | 200 | mA |
| Quiescent Current (IQ) | 200 | nA (typ) |
| Shutdown IQ | 3 | nA (typ) |
| Input Voltage Range | 1.5 to 6.0 | V |
| Output Voltage Range | 0.8 to 5.0 | V (fixed) |
| Output Accuracy | 1.5% | over temperature |
| Dropout Voltage | 270 | mV (max) at 200 mA |
| Operating Temperature Range | -40 to +125 | °C |
| Package Type | SOT-23 (DBV) | |
| Package Size | 2.90 mm × 1.60 mm |
Key Features
- Ultra-low quiescent current (IQ) of 200 nA (typ), even in dropout mode.
- Shutdown IQ of 3 nA (typ) to increase battery shelf life.
- Excellent transient response with a settling time of less than 10 µs and 80-mV undershoot.
- Smart enable circuit with an internally controlled pulldown resistor to minimize external components.
- Very low dropout voltage of 270 mV (max) at 200 mA.
- Stable operation with a 1-µF or larger capacitor.
- Active discharge feature to quickly discharge the output capacitor when the device is disabled.
- Thermal protection and foldback current limit for enhanced reliability.
Applications
- Smoke and heat detectors.
- Gas, heat, and water meters.
- Blood glucose monitors and pulse oximeters.
- Residential circuit breakers and fault indicators.
- Building automation systems.
- Battery-powered devices requiring low quiescent current.
Q & A
- What is the typical quiescent current (IQ) of the TPS7A0333PDBVR? The typical quiescent current is 200 nA.
- What is the maximum output current of the TPS7A0333PDBVR? The maximum output current is 200 mA.
- What is the input voltage range for the TPS7A0333PDBVR? The input voltage range is from 1.5 V to 6.0 V.
- What is the output voltage range of the TPS7A0333PDBVR? The output voltage range is from 0.8 V to 5.0 V in 50-mV steps.
- What is the dropout voltage of the TPS7A0333PDBVR at 200 mA? The dropout voltage is 270 mV (max) at 200 mA.
- What is the operating temperature range of the TPS7A0333PDBVR? The operating temperature range is -40°C to +125°C.
- What package types are available for the TPS7A0333PDBVR? The device is available in SOT-23 (DBV), X2SON, and DSBGA packages.
- Does the TPS7A0333PDBVR have thermal protection? Yes, the device features thermal protection and foldback current limit.
- How does the smart enable circuit of the TPS7A0333PDBVR work? The smart enable circuit uses an internally controlled pulldown resistor to keep the LDO disabled when the EN pin is left floating, minimizing the need for external components.
- Is the TPS7A0333PDBVR stable with small capacitors? Yes, the device is stable with a 1-µF or larger capacitor.
