Figure 4-3. DBV Package, 5-Pin…

LP5907MFX-1.2

Voltage Regulators - Linear, Low Drop Out (LDO) RegulatorsSOT-23

LDO REGULATOR 1.2V 250MA 4DSBGA

LP5907MFX-1.2 is a 1.2V fixed-output, 250mA low-dropout linear regulator in SOT-23 package, featuring low noise, high PSRR, and low quiescent current for RF and analog circuits.Checked against the datasheet

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Technical parameters

Key specs

Output voltage1.2 V

Output current250 mAMax

Input voltage2.2 ~ 5.5 V

Dropout voltage250 mVTyp · Typ 250mV (IOUT=250mA

Quiescent current12 µATyp · Typ 12μA (VEN=1.2V，IOUT=0mA)

Datasheet-verified parameters

21 items

Parameter	Value and test conditions	Source
Output voltage	1.2V (Fixed)
Output current	Max 250mA
Input voltage range	2.2V to 5.5V
Dropout voltage	Typ 250mV (IOUT=250mA, SOT-23 package)
Quiescent current	Typ 12μA (VEN=1.2V, IOUT=0mA)
Package	SOT-23 (DBV), 5 Pins
Operating junction temperature	-40°C to 125°C
RoHS	Yes
Output noise voltage	Typ 6.5μVRMS (BW=10Hz to 100kHz, IOUT=250mA)
Power-supply rejection ratio	Typ 82dB (f=1kHz, IOUT=20mA)
Output voltage tolerance	±2% (VIN=(VOUT(NOM)+1V) to 5.5V, IOUT=1mA to 250mA)
Short-circuit current limit	Typ 250mA, Max 500mA (TA=25°C)
Thermal shutdown	Typ 160°C (TJ rising)
Absolute Maximum Ratings - Input voltage	Min -0.3V, Max 6V
Absolute Maximum Ratings - Junction temperature	Max 150°C
Recommended Operating Conditions - Input voltage	2.2V to 5.5V
Low input threshold	Max 0.4V (VIN=2.2V to 5.5V)
High input threshold	Min 1.2V (VIN=2.2V to 5.5V)
Output automatic discharge pulldown resistance	Typ 230Ω (VEN<VIL)
Load regulation	Typ 0.001%/mA (IOUT=1mA to 250mA)
Line regulation	Typ 0.02%/V (VIN=(VOUT(NOM)+1V) to 5.5V, IOUT=1mA)

All parameters (7)ExpandCollapse

Power
Dropout voltage	120 mV (Typ)
Input voltage	2.2 V (Min)
Maximum output current	250 mA
Output voltage tolerance	±2 %VOUT
Quiescent current	12 μA (Typ)
Environment and package
Operating junction temperature	-40°C to 125°C
Package	DSBGA, 4

Pinout and package

Pin	Name	Function	Source
1		IN, Input voltage supply. Connect a 1μF capacitor at this input.
2		GND, Common ground.
3		EN, Enable input. A low voltage (< VIL) on this pin turns the regulator off and discharges the output pin to GND through an internal 230Ω pulldown resistor. A high voltage (> VIH) on this pin enables the regulator output. This pin has an internal 1MΩ pulldown resistor to hold the regulator off by默认.
4		N/C, No internal electrical connection.
5		OUT, Regulated output voltage. Connect a minimum 1μF low-ESR capacitor to this pin. Connect this output to the load circuit. An internal 230Ω (typical) pulldown resistor prevents a charge remaining on VOUT when the regulator is in shutdown mode (VEN low).

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DatasheetDatasheet · 2.0 MB · 2026-10-27

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