具有電源正常指示和使能功能的 150mA、低 IQ、雙通道低壓降穩壓器
| Output options | Dual Output, Fixed Output |
| Iout (Max) (A) | 0.15 |
| Vin (Max) (V) | 6 |
| Vin (Min) (V) | 2 |
| Vout (Max) (V) | 3.3 |
| Vout (Min) (V) | 0.8 |
| Fixed output options (V) | 0.8, 1, 1.5, 1.8, 2.5, 3, 3.3 |
| Noise (uVrms) | 36 |
| Iq (Typ) (mA) | 0.035 |
| Thermal resistance θJA (°C/W) | 55 |
| Rating | Catalog |
| Load capacitance (Min) (μF) | 1 |
| Regulated outputs (#) | 2 |
| Features | Enable, Power good |
| Accuracy (%) | 2.75 |
| PSRR @ 100 KHz (dB) | 45 |
| Dropout voltage (Vdo) (Typ) (mV) | 210 |
| Operating temperature range (C) | -40 to 85 |
- 2 LDO Outputs with Independent Enable
- 1.5% Accuracy at Room Temperature, 3% Over
Temperature - Power-On-Reset Function with Adjustable
Delay - Thermal Shutdown Protection
- Stable with Ceramic Capacitors
KEY SPECIFICATIONS
- Input Voltage Range 2.0V to 6.0V
- Low Dropout Voltage 210 mV at 300 mA
- Ultra-Low IQ (Enabled) 35 μA
- Virtually Zero IQ (Disabled) <10 nA
- Package Available in Lead-Free Option
10-pin 3 mm × 3 mm
The LP3996 is a dual low dropout regulator with power-on-reset circuit. The first regulator can source 150 mA, while the second is capable of sourcing 300 mA and has a power-on-reset function included.
The LP3996 provides 1.5% accuracy requiring an ultra low quiescent current of 35 μA. Separate enable pins allow each output of the LP3996 to be shut down, drawing virtually zero current.
The LP3996 is designed to be stable with small footprint ceramic capacitors down to 1 μF. An external capacitor may be used to set the POR delay time as required.
The LP3996 is available in fixed output voltages and comes in a 10-pin, 3 mm × 3 mm package.
