| Output options | Adjustable Output, Fixed Output |
| Iout (Max) (A) | 1 |
| Vin (Max) (V) | 10 |
| Vin (Min) (V) | 2.7 |
| Vout (Max) (V) | 5.5 |
| Vout (Min) (V) | 1.2 |
| Fixed output options (V) | 1.8, 2.5, 3.3, 5 |
| Noise (uVrms) | 55 |
| Iq (Typ) (mA) | 0.085 |
| Thermal resistance θJA (°C/W) | 40 |
| Rating | Automotive |
| Load capacitance (Min) (μF) | 10 |
| Regulated outputs (#) | 1 |
| Features | Enable, Power good |
| Accuracy (%) | 2 |
| PSRR @ 100 KHz (dB) | 30 |
| Dropout voltage (Vdo) (Typ) (mV) | 230 |
| Operating temperature range (C) | -40 to 125 |
- Qualified for Automotive Applications
- AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C4B
- 1-A Low-Dropout (LDO) Voltage Regulator
- Available in 1.8-V, 2.5-V, 3.3-V, and 5-V Fixed-Output and an Adjustable Version
- Dropout Voltage Down to 230 mV at 1 A (TPS76850-Q1)
- Ultralow 85-μA Typical Quiescent Current
- Fast Transient Response
- 2% Tolerance Over Specified Conditions for Fixed-Output Versions
- Open-Drain Power Good (See TPS767xx-Q1 for Power-On Reset With 200-ms Delay Option)
- 20-Pin TSSOP (PWP) Package
- Thermal Shutdown Protection
This device is designed to have a fast transient response and be stable with 10 μF capacitors. This combination provides high performance at a reasonable cost.
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 230mV at an output current of 1A for the TPS76850-Q1) and is directly proportional to the output current. Additionally, because the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 85μA over the full range of output current, 0mA to 1A). These two key specifications yield a significant improvement in operating life for battery-powered systems. This LDO family also features a shutdown mode; applying a TTL high signal to the enable (EN) input shuts down the regulator, reducing the quiescent current to less than 1μA at TJ = 25°C.
Power good (PG) is an active-high output, which can be used to implement a power-on reset or a low-battery indicator.
The TPS768xx-Q1 is offered in 1.8-V, 2.5-V, 3.3-V, and 5-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.2 V to 5.5 V). Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges. The TPS768xx-Q1 family is available in a 20-pin PWP package.
