100-mA, 30-V, low-dropout voltage regulator with power good & enable
Product details
Parameters
Package | Pins | Size
Features
- Wide Input Range: Up to 30 V
- Rated Output Current of 100 mA
- Low Dropout: 380 mV (Typ) at 100 mA
- Low Quiescent Current: 75 µA (Typ)
- Tight Line Regulation: 0.03% (Typ)
- Tight Load Regulation: 0.04% (Typ)
- High VO Accuracy
- 1.4% at 25°C
- 2% Over Temperature
- Can Be Used as a Regulator or Reference
- Stable With Low ESR (>12 mΩ) Capacitors
- Current- and Thermal-Limiting Features
- LP2950 Only (3-Pin)
- Fixed-Output Voltages of 5 V, 3.3 V, and 3 V
- LP2951 Only (8-Pin Package)
- Fixed- or Adjustable-Output Voltages:
5 V/ADJ, 3.3 V/ADJ, and 3 V/ADJ - Low-Voltage Error Signal on Falling Output
- Shutdown Capability
- Remote Sense Capability for Optimal Output
Regulation and Accuracy
- Fixed- or Adjustable-Output Voltages:
Description
The LP2950 and LP2951 devices are bipolar, low-dropout voltage regulators that can accommodate a wide input supply-voltage range of up to 30 V. The easy-to-use, 3-pin LP2950 is available in fixed-output voltages of 5 V, 3.3 V, and 3 V. However, the 8-pin LP2951 is able to output either a fixed or adjustable output from the same device. By tying the OUTPUT and SENSE pins together, and the FEEDBACK and VTAP pins together, the LP2951 outputs a fixed 5 V, 3.3 V, or 3 V (depending on the version). Alternatively, by leaving the SENSE and VTAP pins open and connecting FEEDBACK to an external resistor divider, the output can be set to any value between 1.235 V to 30 V.
Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- Small form factor
- Designed for fixed- and adjustable-output voltage
- 1.235-V to 29-V adjustable-output voltage
- Landing patterns for additional input and output capacitors
- Landing pattern for bypass capacitor
Design tools & simulation
Reference designs
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SOIC (D) | 8 | View options |
SON (DRG) | 8 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
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