Specifications
| Type | Description |
|---|---|
| Part Number | LP5907MFX-3.3 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Component Type | Power_IC |
| Package / Case | DBV (SOT-23, 5), 2.9mm × 2.8mm |
| Input Voltage Range | 2.2 to 5.5 V; recommended operating conditions |
| Output Voltage Range | 1.2 to 4.5 V; fixed output voltage options in 25mV steps |
| Nominal Output Voltage | 3.3 V; LP5907MFX-3.3 part number suffix |
| Output Current | 0 to 250 mA; recommended operating conditions |
| Maximum Output Current | 250 mA; electrical characteristics |
| Output Voltage Tolerance | ±2 %VOUT; VIN = VOUT(NOM)+1V to 5.5V, IOUT = 1mA to 250mA |
| Output Voltage Tolerance, VOUT < 1.8V | ±3 %VOUT; SOT-23 and X2SON packages under stated VIN and load conditions |
| Line Regulation | 0.02 %/V typ; VIN = VOUT(NOM)+1V to 5.5V, IOUT = 1mA |
| Load Regulation | 0.001 %/mA typ; IOUT = 1mA to 250mA |
| Quiescent Current, No Load | 12 µA typ, 25 µA max; VEN = 1.2V, IOUT = 0mA |
| Quiescent Current, Full Load | 250 µA typ, 425 µA max; VEN = 1.2V, IOUT = 250mA |
| Shutdown Quiescent Current | 0.2 µA typ, 1 µA max; VEN = 0.3V, disabled |
| Ground Current | 14 µA typ; VEN = 1.2V, IOUT = 0mA |
| Dropout Voltage, 100mA | 50 mV typ; IOUT = 100mA |
| Dropout Voltage, 250mA DSBGA | 120 mV typ, 200 mV max; IOUT = 250mA, DSBGA package |
| Dropout Voltage, 250mA SOT-23/X2SON | 250 mV typ; IOUT = 250mA, SOT-23 and X2SON packages |
| Short-Circuit Current Limit | 250 mA min, 500 mA typ; TA = 25°C |
| PSRR, 100Hz | 90 dB typ; f = 100Hz, IOUT = 20mA |
| PSRR, 1kHz | 82 dB typ; f = 1kHz, IOUT = 20mA |
| PSRR, 10kHz | 65 dB typ; f = 10kHz, IOUT = 20mA |
| PSRR, 100kHz | 60 dB typ; f = 100kHz, IOUT = 20mA |
| Output Noise Voltage, 1mA | 10 µVRMS typ; BW = 10Hz to 100kHz, IOUT = 1mA |
| Output Noise Voltage, 250mA | 6.5 µVRMS typ; BW = 10Hz to 100kHz, IOUT = 250mA |
| Output Discharge Pulldown Resistance | 230 Ω typ; VEN < VIL, output disabled |
| Thermal Shutdown Temperature | 160 °C typ; TJ rising |
| Thermal Shutdown Hysteresis | 15 °C typ; TJ falling from shutdown |
| Enable Low Input Threshold | 0.4 V max; VIN = 2.2V to 5.5V, VEN falling until output disabled |
| Enable High Input Threshold | 1.2 V min; VIN = 2.2V to 5.5V, VEN rising until output enabled |
| Enable Pin Input Current, High | 5.5 µA max; VEN = 5.5V and VIN = 5.5V |
| Enable Pin Input Current, Low | 0.001 µA typ; VEN = 0V and VIN = 5.5V |
| Line Transient, Rising VIN | -1 mV typ; VIN = VOUT(NOM)+1V to VOUT(NOM)+1.6V in 30µs |
| Line Transient, Falling VIN | 1 mV typ; VIN = VOUT(NOM)+1.6V to VOUT(NOM)+1V in 30µs |
| Load Transient, Load Step Up | -40 mV typ; IOUT = 1mA to 250mA in 10µs |
| Load Transient, Load Step Down | 40 mV typ; IOUT = 250mA to 1mA in 10µs |
| Startup Overshoot | 5 % typ of VOUT(NOM); start-up |
| Startup Overshoot With Enable | 1 % typ of VOUT(NOM); VIN = VOUT+1V to 5.5V, 0.7µF < COUT < 10µF, 0mA < IOUT < 250mA, EN rising |
| Turn-On Time | 80 µs typ, 150 µs max; from VEN > VIH to VOUT = 95% of VOUT(NOM), TA = 25°C |
| Input Capacitor | 1 µF; connect at IN pin, ceramic input capacitor supported |
| Output Capacitor | Minimum 1 µF low-ESR; connect to OUT pin, ceramic output capacitor supported |
| Noise Bypass Capacitor | Not required; device design does not require separate noise bypass capacitor |
| Enable Pulldown Resistance | 1 MΩ internal pulldown; EN pin held off by default |
| Absolute Maximum Input Voltage | -0.3 to 6 V; with respect to GND |
| Absolute Maximum Enable Voltage | -0.3 to 6 V; with respect to GND |
| Absolute Maximum Output Voltage | -0.3 V to lesser of VIN + 0.3V or 6V; with respect to GND |
| Maximum Junction Temperature | 150 °C; absolute maximum rating |
| Operating Junction Temperature | -40 to 125 °C; recommended operating conditions |
| Ambient Temperature | -40 to 85 °C; recommended operating conditions |
| Storage Temperature | -65 to 150 °C; absolute maximum rating |
| ESD Rating HBM | ±2000 V; ANSI/ESDA/JEDEC JS-001 |
| ESD Rating CDM | ±1000 V; JEDEC JESD22-C101 |
| Junction-to-Ambient Thermal Resistance | 193.4 °C/W; DBV SOT-23, 5 pins |
| Junction-to-Case Top Thermal Resistance | 102.1 °C/W; DBV SOT-23, 5 pins |
| Junction-to-Board Thermal Resistance | 45.8 °C/W; DBV SOT-23, 5 pins |
| Datasheet Status | request_only |
Product Overview
LP5907MFX-3.3 is a Texas Instruments fixed-output Power_Management IC described as a 250mA low-noise LDO regulator. The part number suffix indicates a nominal 3.3V output, while the family supports fixed output voltage options from 1.2V to 4.5V in 25mV steps. Recommended operation covers a 2.2V to 5.5V input range and 0mA to 250mA output current.
The device is supplied in the DBV package, a 5-pin SOT-23 case measuring 2.9mm × 2.8mm. For external components, the datasheet facts specify a 1µF input capacitor at the IN pin and a minimum 1µF low-ESR output capacitor at the OUT pin. A separate noise bypass capacitor is not required, and the EN pin includes a 1MΩ internal pulldown so the regulator is held off by default.
Electrical behavior includes 12µA typical quiescent current at no load, 250µA typical quiescent current at 250mA, 50mV typical dropout at 100mA, and 250mV typical dropout at 250mA for SOT-23 and X2SON packages. Protection and limits include short-circuit current limiting, thermal shutdown, and specified absolute maximum and ESD ratings.
Key Features
- 2.2V to 5.5V recommended input voltage range
- 3.3V nominal fixed output for LP5907MFX-3.3
- 0mA to 250mA recommended output current range
- ±2% output voltage tolerance under stated VIN and load
- 10µVRMS typical output noise at 1mA load
- 6.5µVRMS typical output noise at 250mA load
- 90dB typical PSRR at 100Hz and 20mA
- 1µF input capacitor and minimum 1µF output capacitor
- No separate noise bypass capacitor required
- 1MΩ internal enable pulldown holds EN off by default
- 80µs typical turn-on time from enable high
- Thermal shutdown at 160°C typical junction temperature
Typical Applications
- Low-noise regulated voltage rails
- 3.3V power rail generation
- Enable-controlled power domains
- Compact SOT-23 regulator layouts
- Battery-fed 2.2V to 5.5V rails
- 250mA local point-of-load regulation
- Noise-sensitive analog supply rails
Procurement Notes
When requesting a quote for LP5907MFX-3.3, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What output voltage does LP5907MFX-3.3 provide?
The LP5907MFX-3.3 part number suffix indicates a nominal 3.3V output. The broader device family has fixed output voltage options from 1.2V to 4.5V in 25mV steps.
What input voltage range is recommended for this regulator?
The recommended input voltage range is 2.2V to 5.5V. Absolute maximum input voltage is specified separately as -0.3V to 6V with respect to GND.
How much output current can LP5907MFX-3.3 supply?
Recommended operation covers 0mA to 250mA output current. The electrical characteristics also list 250mA as the maximum output current for the device.
What external capacitors are specified for LP5907MFX-3.3?
The extracted datasheet facts specify a 1µF capacitor at the IN pin and a minimum 1µF low-ESR capacitor at the OUT pin. Ceramic input and output capacitors are supported.
Does this device need a separate noise bypass capacitor?
No. The datasheet facts state that the device design does not require a separate noise bypass capacitor, while still specifying low typical output noise values across a 10Hz to 100kHz bandwidth.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.