Texas Instruments LP5907YKGR-2.825

Overview

LP5907YKGR-2.825 from Texas Instruments is a fixed-output 2.825V, 250mA low-noise LDO regulator designed for RF and analog power rails. It delivers <6.5µVRMS output noise, 82dB PSRR at 1kHz, and 12µA quiescent current while operating from 2.2V–5.5V input. Used in smartphone camera modules to power image signal processors without requiring a noise-bypass capacitor.

For engineers reviewing the LP5907YKGR-2.825 datasheet, LP5907YKGR-2.825 pinout, LP5907YKGR-2.825 application, or LP5907YKGR-2.825 equivalent, key selection criteria include dropout voltage (120mV @ 250mA), remote output capacitor support (up to 10cm), ±2% output tolerance, thermal shutdown at 160°C, and DSBGA-4 (YKG) package compatibility with space-constrained PCB layouts.

Technical Context

The LP5907YKGR-2.825 uses an internal low-pass RC filter (–3dB at ~0.1Hz) to suppress reference noise before output buffering, enabling ultra-low noise without external bypass caps. Its enable logic includes a 1MΩ internal pulldown and VIH/VIL thresholds of 1.2V/0.4V, supporting direct GPIO control.

It features active output discharge via a 230Ω internal pulldown when disabled, and supports stable operation with only 1µF ceramic input and output capacitors - including remote placement up to 10cm from the IC - due to optimized internal compensation and low ESR sensitivity (5–500mΩ).

Key Specifications

Pinout & Package

LP5907YKGR-2.825 is packaged in a 0.685mm × 0.685mm, 4-pin DSBGA (YKG) with bottom-side solder balls. The package is lead-free, RoHS-compliant, and optimized for high-density portable PCBs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LDO regulator applications.

Compared with LP5907YKGR-2.825, TPL7407LPGEDR trades current headroom for lower cost and tighter tolerance, while TPS7A2028PDBVR offers superior noise and efficiency at the expense of pinout compatibility and higher minimum input voltage (1.6V vs 2.2V).

Availability

LP5907YKGR-2.825 is available at Aetrix Electronics and suitable for smartphone camera modules, 5G mmWave front-ends, and industrial IoT sensor nodes requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for LP5907YKGR-2.825 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies, with over 90 years of innovation in high-reliability electronic components.

The LP5907 series belongs to TI's precision low-noise LDO portfolio, engineered specifically for noise-sensitive RF, imaging, and high-speed data acquisition systems where traditional LDOs introduce unacceptable signal integrity degradation.

FAQ

What is the maximum output current rating for LP5907YKGR-2.825?

The LP5907YKGR-2.825 is rated for a continuous output current of 250mA under recommended operating conditions (TJ ≤ 125°C, VIN ≥ 2.2V). This rating applies specifically to the YKG (DSBGA-4) package and assumes proper PCB thermal design per TI's RθJB and RθJA metrics. Exceeding this current may trigger thermal shutdown or degrade output voltage regulation.

Does LP5907YKGR-2.825 require an external noise-bypass capacitor?

No, LP5907YKGR-2.825 does not require an external noise-bypass capacitor. Its internal low-pass RC filter (–3dB at ~0.1Hz) reduces reference voltage noise to <6.5µVRMS, enabling clean output directly from the OUT pin. This eliminates BOM cost and board space typically needed for 10nF–100nF bypass caps in RF/analog applications.

Can the output capacitor of LP5907YKGR-2.825 be placed remotely from the IC?

Yes, LP5907YKGR-2.825 supports remote placement of its 1µF ceramic output capacitor up to 10cm from the OUT pin. This capability stems from its robust internal compensation and low ESR sensitivity (5–500mΩ), allowing flexible PCB routing in multi-layer mobile and telecom designs without compromising stability or transient response.

What is the enable logic behavior of LP5907YKGR-2.825?

LP5907YKGR-2.825 features active-high enable logic with VIH ≥ 1.2V and VIL ≤ 0.4V. An internal 1MΩ pulldown resistor holds the EN pin low by default, ensuring the device remains off until actively driven high. When disabled, a 230Ω internal pulldown discharges the OUT pin to GND, preventing floating voltage on downstream circuitry.

Is LP5907YKGR-2.825 compatible with standard 0.685mm × 0.685mm DSBGA reflow profiles?

Yes, LP5907YKGR-2.825 in the YKG package conforms to JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) and is compatible with standard Pb-free reflow profiles (peak 260°C, 20–40 sec above 217°C). Its 0.685mm × 0.685mm footprint and 0.35mm ball pitch match industry-standard DSBGA assembly processes used in high-volume smartphone manufacturing.