Figure 4-2. DQN Package, 4-Pin…

LP5907SNX-3.2/NOPB

IC REG LINEAR 3.2V 250MA 4X2SON

LP5907SNX-3.2/NOPB is a 3.2V fixed-output, 250mA low-noise LDO regulator in X2SON (DQN) package, with 2.2V-5.5V input range, thermal shutdown, and short-circuit protection.Checked against the datasheet

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Technical parameters

Key specs

Output voltage3.2 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

23 items

Parameter	Value and test conditions	Source
Output voltage	3.2V (Fixed)
Output current	Max 250mA
Input voltage range	2.2V to 5.5V
Dropout voltage	Typ 250mV (IOUT=250mA, SOT-23, X2SON packages)
Quiescent current	Typ 12μA (VEN=1.2V, IOUT=0mA); Max 25μA
Package	X2SON (DQN), 4 Pins, 1mm × 1mm
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)
Line regulation	Typ 0.02%/V (VIN=(VOUT(NOM)+1V) to 5.5V, IOUT=1mA)
Load regulation	Typ 0.001%/mA (IOUT=1mA to 250mA)
Short-circuit current limit	Typ 250mA, Max 500mA (TA=25°C)
Thermal shutdown	Typ 160°C (TJ rising)
Thermal hysteresis	Typ 15°C (TJ falling from shutdown)
Low input threshold	Max 0.4V (VIN=2.2V to 5.5V, VEN falling)
High input threshold	Min 1.2V (VIN=2.2V to 5.5V, VEN rising)
Turn-on time	Typ 80μs, Max 150μs (From VEN>VIH to VOUT=95% of VOUT(NOM), TA=25°C)
Absolute Maximum Ratings - Input voltage	Min -0.3V, Max 6V
Absolute Maximum Ratings - Junction temperature	Max 150°C
Storage temperature	-65°C to 150°C
Output automatic discharge pulldown resistance	Typ 230Ω (VEN<VIL, output disabled)

All parameters (22)ExpandCollapse

Power
Current - Output	250mA
Current - Quiescent (Iq)	25 µA
Current - Supply (Max)	425 µA
Voltage Dropout (Max)	0.25V @ 250mA
Voltage - Input (Max)	5.5V
Voltage - Output (Max)	-
Voltage - Output (Min/Fixed)	3.2V
AC and DC characteristics
PSRR	90dB ~ 60dB (100Hz ~ 100kHz)
Environment and package
Mounting Type	Surface Mount
Operating Temperature	-40°C~125°C
Package	Tape & Reel (TR); Cut Tape (CT); Digi-Reel®
Package / Case	4-XDFN Exposed Pad
Supplier Device Package	4-X2SON (1x1)
Other
Base Product Number	LP5907
Control Features	Enable
Mfr	Texas Instruments
Number of Regulators	1
Output Configuration	Positive
Output Type	Fixed
Product Status	Active
Protection Features	Over Temperature, Short Circuit
Series	-

Pinout and package

Pin	Name	Function	Source
1		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).
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 defa
4		IN: Input voltage supply. Connect a 1μF capacitor at this input.
5		Thermal Pad: Thermal pad for the X2SON package, connect to GND or leave floating. Do not connect to any potential other than GND.

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DatasheetDatasheet · 2.0 MB · 2026-10-29

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