Description
The SPX3819 is a positive voltage regulator with a low dropout voltage and low noise output. In addition, this device offers a very low ground current of 800μA at 100mA output. The SPX3819 has an initial tolerance of less than 1% max and a logic-compatible on/off switched input. When disabled, power consumption drops to nearly zero. Other key features include reverse battery protection, current limit, and thermal shutdown. The SPX3819 includes a reference bypass pin for optimal low-noise output performance. With its very low output temperature coefficient, this device also makes a superior low-power voltage reference.
The SPX3819 is an excellent choice for use in battery-powered applications such as cordless telephones, radio control systems, and portable computers. It is available in several fixed output voltage options or with an adjustable output voltage.
This device is offered in 5-pin SOT-23-5 packages.
Features:
- Low noise: 40µV possible
- High accuracy: 1%
- Reverse battery protection
- Low dropout: 340mV at full load
- Low quiescent current: 90µA
- Zero off-mode current
- Fixed output: 1.2V
- 5-pin SOT-23
Specifications
| Manufacturer | MaxLinear |
| Mfr. Part # | SPX3819M5-L-1-2/TR |
| Package | SOT-23-5 |
| Datasheet | MaxLinear SPX3819M5-L-1-2/TR |
| Description | 500mA 70dB Fixed 1.2V Positive 16V SOT-23-5 Linear Voltage Regulators (LDO) ROHS |
| Attribute | Value |
| Category | Power Supply Chip/Linear Voltage Regulators (LDO) |
| Datasheet | MaxLinear SPX3819M5-L-1-2/TR |
| RoHS | |
| Output Current | 500mA |
| Power Supply Rejection Ratio (PSRR) | 70dB |
| Quiescent Current (Ground Current) | 8uA |
| Dropout Voltage | 700mV@(500mA) |
| Operating Temperature | -40℃~+125℃ |
| Output Type | Fixed |
| Output Voltage | 1.2V |
| Output Polarity | Positive |
| Number of Outputs | 1 |
| Maximum Input Voltage | 16V |
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