LP5907MFX-2.5/NOPB

Part: LP5907MFX-2.5/NOPB — Texas Instruments

Type: Ultra-Low-Noise Low-Dropout (LDO) Linear Regulator (fixed 2.5 V output variant)

Description: 2.2–5.5 V input, 250 mA ultra-low-noise LDO with <6.5 μVRMS output noise, 82 dB PSRR at 1 kHz, 12 μA quiescent current (enabled) and ±2% output tolerance.

Operating Conditions:

• Supply voltage: 2.2–5.5 V
• Operating temperature: -40 to 125 °C junction (TJ); -40 to 85 °C ambient (TA)
• Output current: 0–250 mA
• Enable input voltage: 0–5.5 V

Absolute Maximum Ratings:

• Max input voltage (VIN): 6 V
• Max enable input voltage (VEN): 6 V
• Max junction temperature: 150 °C
• Storage temperature: -65 to 150 °C
• ESD: HBM ±2000 V, CDM ±1000 V

Key Specs:

• Input voltage range: 2.2–5.5 V
• Output current: up to 250 mA
• Output voltage tolerance: ±2%
• Output noise: <6.5 μVRMS
• PSRR: 82 dB at 1 kHz
• Quiescent current (enabled): 12 μA
• Dropout voltage: 120 mV (typical)
• Stable with 1 μF ceramic input and output capacitors

Features:

• No noise bypass capacitor required
• Remote output capacitor placement
• Thermal-overload and short-circuit protection
• Internal 230 Ω (typical) output pulldown when disabled
• Internal 1 MΩ pulldown on EN pin holds the regulator off by default
• Fixed output voltages from 1.2 V to 4.5 V in 25 mV steps
• WEBENCH Power Designer support

Applications:

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

Package:

• DSBGA (4), 0.645 mm × 0.645 mm
• SOT-23 (5), 2.90 mm × 1.60 mm
• X2SON (4), 1.00 mm × 1.00 mm

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

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

1

VIN = VOUT(NOM) + 1 V, VEN = 1.2 V, IOUT = 1 mA, CIN = 1 μF, COUT = 1 μF (unless otherwise noted) (1)(2)(3)

• (5) Quiescent current is defined here as the difference in current between the input voltage source and the load at V OUT .

(6) Ground current is defined here as the total current flowing to ground as a result of all input voltages applied to the device.

(7) Dropout voltage is the voltage difference between the input and the output at which the output voltage drops to 100 mV below its nominal value.

(8) Short-circuit current (I SC ) for the LP5907 is equivalent to current limit. To minimize thermal effects during testing, I SC is measured with VOUT pulled to 100 mV below its nominal voltage.

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

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 1 μF. 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 (TJ) of -40°C to 125°C.