power management pmic

SPX5205-5.0

Full part number: SPX5205M5-L-5.0

Every spec below is cited to the manufacturer datasheet. Compare the closest alternatives, then ask the assistant what it means for your design.

00 — Overview

What the SPX5205-5.0 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.

Next step

Start building with SPX5205-5.0 → Every number above is cited straight from the datasheet — ask what they mean for your design, and the assistant answers from the same source documents.

01 — Key specifications

Datasheet parameters

Datasheet parameters for SPX5205-5.0
Parameter	Min	Typ	Max	Conditions	Source
quiescent current	—	70 µA	—	IGND, IL = 100 uA, typ	Exar datasheet, p. 2 — ELECTRICAL CHARACTERISTICS
output current	—	150 mA	—		Exar datasheet, p. 2 — ELECTRICAL CHARACTERISTICS
operating temperature	-40 °C	—	125 °C		Exar datasheet, p. 2 — RECOMMENDED OPERATING CONDITIONS
dropout voltage	—	210 mV	—	IL = 150 mA, typ	Exar datasheet, p. 2 — ELECTRICAL CHARACTERISTICS
output noise voltage	—	40 µV	—	IL = 10 mA, CL = 10 uF, CBYP = 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

02 — Alternatives

Closest matches to SPX5205-5.0

SPX5205 similar dropout voltage, similar operating temperature, similar output current

RT9193-1.5 5.0× lower standby current, 3.0× lower output noise voltage, 2.0× higher output current

AP2127-1.0 6.7× higher dropout voltage, 5.0× lower output noise voltage, 3.0× higher output current

MIC5205 5.0× lower standby current, 1.3× lower dropout voltage, 1.1× higher quiescent current

AP2112 6.0× lower output noise voltage, 5.0× lower standby current, 4.8× higher dropout voltage

AP2127-3.3 6.7× higher dropout voltage, 5.0× lower output noise voltage, 3.0× higher output current

RT9013-1.2 14.0× higher standby current, 10.0× lower output noise voltage, 3.3× higher output current

RT9080 11.5× lower output noise voltage, 7.3× higher output current, 5.0× higher dropout voltage

03 — FAQ

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 SPX5205M5-L-5.0?

The maximum operating temperature is 125 °C.

What is the output count for the SPX5205M5-L-5.0?

The output count is 1.

What is the output current?

The output current is 150 mA.

What is the typical output noise voltage when IL = 10 mA, CL = 10 uF, CBYP = 1 uF, CIN = 1 uF, and the frequency range is 10 Hz-100 kHz?

The output noise voltage is 40 µV.

What is the typical quiescent current when IGND is measured and IL is 100 uA?

The typical quiescent current is 70 µA.

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