Texas Instruments LP8725TLE-A/NOPB

Overview

LP8725TLE-A/NOPB from Texas Instruments is a programmable power management unit (PMU) integrating two 600-mA step-down DC-DC converters (configurable up to 800 mA), three digital LDOs (300 mA each), two low-noise analog 300-mA LDOs, and two low-input/low-output regulators - all controlled via I²C interface for dynamic voltage scaling and configurable power-on sequencing in multimedia processor subsystems.

For engineers reviewing the LP8725TLE-A/NOPB datasheet, LP8725TLE-A/NOPB pinout, LP8725TLE-A/NOPB application, or LP8725TLE-A/NOPB equivalent, key selection considerations include its 30-bump DSBGA package (0.5 mm pitch), ±2% output voltage accuracy across buck and LDO rails, 10 μV_rms analog LDO noise, thermal shutdown protection, and dual configuration modes (SUB_PMU or stand-alone PMU) determined by CONFIG pin wiring.

Technical Context

The LP8725TLE-A/NOPB operates in two hardware-configurable modes: SUB_PMU (CONFIG = GND) with EN/PWR_ON control and automatic standby entry, or full PMU mode (CONFIG = VIN1) supporting PS_HOLD-based system-level power hold and coordinated reset assertion. Startup and shutdown sequences are register-programmable with typical 64 µs time steps and fixed default orders dependent on DEFSEL pin state.

It implements Dynamic Voltage Scaling (DVS) for BUCK1 using either internal register control or external DVS pin logic, supports fault detection (e.g., short-circuit-induced RESET_N assertion), and delivers high PSRR and ultra-low noise ideal for powering sensitive analog blocks like ADCs, PLLs, and camera ISPs alongside digital cores.

Key Specifications

Pinout & Package

LP8725TLE-A/NOPB uses a 30-bump DSBGA package (2.15 mm × 2.15 mm, 0.5 mm pitch) with bottom-side solder balls. Pin functions are defined by physical location and CONFIG pin state (GND or VIN1), enabling dual operational modes.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar power management applications.

Compared with LP8725TLE-A/NOPB, LP8725-A/NOPB offers lower default active rail count for reduced idle power, while LP8725-C/NOPB removes external DVS dependency for deterministic voltage control - both retain identical pinout, package, and I²C register structure but differ in factory-default configuration and sequencing behavior.

Availability

LP8725TLE-A/NOPB is available at Aetrix Electronics and suitable for mobile camera modules, portable media players, wireless handheld terminals, and industrial HMI displays requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for LP8725TLE-A/NOPB 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 decades of automotive, industrial, and consumer design expertise.

The LP8725 product line was engineered specifically for power-constrained multimedia subsystems - delivering integrated, sequenced, and low-noise regulation to replace discrete PMU solutions in portable and embedded applications.

FAQ

What is the package type and dimensions of the LP8725TLE-A/NOPB?

The LP8725TLE-A/NOPB uses a 30-bump DSBGA package measuring 2.15 mm × 2.15 mm with 0.5-mm ball pitch. This compact footprint supports high-density PCB layouts in space-limited portable devices while maintaining thermal performance through exposed die pad connectivity.

How does the CONFIG pin determine LP8725TLE-A/NOPB operating mode?

The CONFIG pin (E2) selects between SUB_PMU mode (hardwired to GND) and full PMU mode (hardwired to VIN1). In SUB_PMU mode, EN/PWR_ON initiates startup and RESET_N asserts after 30 ms; in PMU mode, PWR_ON triggers debounced startup and PS_HOLD sustains operation - altering register defaults and reset timing.

Does LP8725TLE-A/NOPB support dynamic voltage scaling, and how is it implemented?

Yes, LP8725TLE-A/NOPB supports Dynamic Voltage Scaling for BUCK1 via either the DVS pin (C2) or I²C register control (REG 0x00<2>). When DVS=1, BUCK1 outputs BUCK1_V1; when DVS=0, it outputs BUCK1_V2 - enabling real-time core voltage adjustment without interrupting system operation.

What are the default output voltages for LP8725TLE-A/NOPB when DEFSEL = VIN1?

With DEFSEL = VIN1, LP8725TLE-A/NOPB defaults to BUCK1 = 1.0 V / 1.2 V (DVS-selectable), BUCK2 = 1.8 V, LDO1 = 2.8 V, LDO2 = 1.8 V, LDO3 = 3.3 V, LDO4 = 3.3 V, LDO5 = 2.8 V, LILO1 = 1.2 V, and LILO2 = 1.2 V - all enabled at power-on unless modified via I²C or pin control.

Can LP8725TLE-A/NOPB be used without I²C configuration?

Yes, LP8725TLE-A/NOPB operates fully from hardware pin strapping (CONFIG, DEFSEL, DVS, EN/PWR_ON, B2_EN/PS_HOLD, LDO3_EN) and internal default registers. I²C is optional for runtime reconfiguration - default startup sequence, voltages, and enable states function autonomously upon power application.