Part: LP5907 — Texas Instruments

Type: Low-Noise, Low-IQ LDO

Description: The LP5907 is a low-noise LDO that can supply up to 250mA output current, featuring a 2.2V to 5.5V input voltage range, 1.2V to 4.5V output voltage range, and very low quiescent current of 12μA.

Operating Conditions:

• Supply voltage: 2.2V to 5.5V
• Operating temperature: -40 to 125 °C (Junction temperature)
• Output current: 0 to 250 mA
• Output voltage range: 1.2V to 4.5V

Absolute Maximum Ratings:

• Max supply voltage: 6 V
• Max continuous current: 250 mA (Output current)
• Max junction/storage temperature: 150 °C

Key Specs:

• Output voltage tolerance: ±2%V OUT (V IN = (V OUT(NOM) + 1V) to 5.5V, I OUT = 1mA to 250mA)
• Quiescent current (enabled): 12 μA (V EN = 1.2V, I OUT = 0mA)
• Dropout voltage: 120 mV (typical, I OUT = 250mA, DSBGA package)
• PSRR: 82 dB (f = 1kHz, I OUT = 20mA)
• Output noise voltage: 6.5 μV RMS (BW = 10Hz to 100kHz, I OUT = 250mA)
• Short-circuit current limit: 250 mA (typical, T A = 25°C)
• Turn-on time: 80 μs (typical, from V EN > V IH to V OUT = 95% of V OUT(NOM) )
• Thermal shutdown: 160 °C (T J rising)

Features:

• Stable with 1-μF ceramic input and output capacitors
• No noise bypass capacitor required
• Remote output capacitor placement
• Thermal-overload and short-circuit protection
• Very low I Q (enabled): 12μA

Applications:

• Smartphones
• Tablets
• Communications equipment
• Digital still cameras
• Factory automation

Package:

• YKE, YKG, YKM, YCR (DSBGA, 4)
• DBV (SOT-23, 5)
• DQN (X2SON, 4)

• For a more updated portfolio device, see the TPS7A20
• Input voltage range: 2.2V to 5.5V
• Output voltage range: 1.2V to 4.5V
• Stable with 1-μF ceramic input and output capacitors
• No noise bypass capacitor required
• Remote output capacitor placement
• Thermal-overload and short-circuit protection
• Operating junction temperature: -40°C to 125°C
• Low output voltage noise: < 6.5μVRMS
• PSRR: 82dB at 1kHz
• Output voltage tolerance: ±2%
• Very low I Q (enabled): 12μA
• Low dropout: 120mV (typical)
• Create a custom design using the LP5907 with the WEBENCH ® Power Designer

• Smartphones
• Tablets
• Communications equipment
• Digital still cameras
• Factory automation

LP5907MFX-3.3/NOPB Pinout

Package: SC-74A, SOT-753 (5-Pin SOT-23)

Notes

• Pin numbering extracted from the SOT-23 package diagram (rightmost image).
• The LP5907MFX-3.3/NOPB is a 5-pin SOT-23 variant; other variants in the family (DSBGA, X2SON) have different pin assignments.
• Pin 4 (N/C) has no internal electrical connection and should be left unconnected.
• Thermal pad information applies only to X2SON package; not applicable to this SOT-23 variant.

VIN = VOUT(NOM) + 1V, VEN = 1.2V, I OUT = 1mA, C IN = 1μF, and C OUT = 1μF (unless otherwise noted) (1) (2) (3)

over operating free-air temperature range (unless otherwise noted) (1) (3)

• (2) Abs Max VOUT is the lessor of VIN + 0.3V, or 6V.

(3) All voltages are with respect to the GND pin.

• (4) Internal thermal shutdown circuitry protects the device from permanent damage.

over operating free-air temperature range (unless otherwise noted) (1) (2)

The LP5907 is designed to meet the requirements of RF and analog circuits, by providing low noise, high PSRR, low quiescent current, and low line or load transient response figures. The device offers excellent noise performance without the need for a noise bypass capacitor and is stable with input and output capacitors with a value of 1μF. The LP5907 delivers this performance in industry standard packages such as DSBGA, X2SON, and SOT-23 which, for this device, are specified with an operating junction temperature (T J ) of -40°C to 125°C.

• (1) For more information, see the Mechanical, Packaging, and Orderable Information .
• (2) The package size (length × width) is a nominal value and includes pins, where applicable.