SPX5205
Every spec below is cited to the manufacturer datasheet. Pick your exact ordering code, compare the closest alternatives, then ask the assistant what it means for your design.
What the SPX5205 family does
The SPX5205 is a 150mA, low-noise LDO voltage regulator available in fixed outputs from 1.2V to 5.0V or adjustable versions within a 5-pin SOT-23 package. It features 40μV RMS output noise, 1% initial accuracy, and 70μA quiescent current at light loads. The device maintains 210mV dropout at full load and includes thermal shutdown, current limiting, and reverse-battery protection. Engineers typically use it in battery-powered systems, portable consumer equipment, cellular phones, and radio control applications where power conservation is critical.
SPX5205 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 70 µA | — | IGND, IL = 100 uA, typ | Exar datasheet, p. 2 — ELECTRICAL CHARACTERISTICS |
| output voltage | — | 1.2 V | — | Exar datasheet, p. 8 — ORDERING INFORMATION | |
| output current | — | 150 mA | — | Exar datasheet, p. 2 — ELECTRICAL CHARACTERISTICS | |
| operating temperature | -40 °C | — | 125 °C | Exar datasheet, p. 2 — RECOMMENDED OPERATING CONDITIONS | |
| standby current | — | 50 nA | — | VENABLE <= 0.4 V, typ | Exar datasheet, p. 2 — ELECTRICAL CHARACTERISTICS |
| dropout voltage | — | 210 mV | — | IL = 150 mA, typ | Exar datasheet, p. 2 — ELECTRICAL CHARACTERISTICS |
| output noise voltage | — | 300 µV | — | IL = 10 mA, CL = 1 uF, CIN = 1 uF, 10 Hz-100 kHz, typ | Exar datasheet, p. 2 — ELECTRICAL CHARACTERISTICS |
| output count | — | 1 | — | Exar datasheet, p. 2 — ELECTRICAL CHARACTERISTICS |
SPX5205 frequently asked questions
What is the typical dropout voltage when IL = 150 mA?
The typical dropout voltage is 210 mV.
What is the maximum operating temperature for the SPX5205?
The operating temperature is 125 °C.
What is the output count of the SPX5205?
The output count is 1.
What is the output current of the SPX5205?
The output current is 150 mA.
What is the typical output noise voltage when IL = 10 mA, CL = 1 uF, CIN = 1 uF, and the frequency range is 10 Hz-100 kHz?
The typical output noise voltage is 300 µV.
What is the output voltage of the SPX5205?
The output voltage is 1.2 V.
What is the typical quiescent current (IGND) when the load current (IL) is 100 uA?
The typical quiescent current is 70 µA.
What is the typical standby current when VENABLE is less than or equal to 0.4 V?
The typical standby current is 50 nA when VENABLE <= 0.4 V.