Texas Instruments TPS82695SIPR

Overview

TPS82695SIPR from Texas Instruments is a 2.5V-output, 500mA synchronous step-down MicroSiP™ DC/DC converter in an ultra-compact 2.3mm × 2.9mm × 1.0mm BGA package. It integrates switching regulator, inductor, and input/output capacitors; operates at 4MHz PWM with automatic PFM/PWM mode switching; delivers 95% peak efficiency and ±2% total DC output voltage accuracy; and targets space-constrained, battery-powered portable applications such as smartphones and wearable sensors.

For engineers reviewing the TPS82695SIPR datasheet, TPS82695SIPR pinout, TPS82695SIPR application, or TPS82695SIPR equivalent, key selection considerations include its sub-1mm profile, 24μA quiescent current in PFM mode, integrated soft-start (130μs), active power-down sequencing with 100Ω discharge resistor, and MODE pin-selectable fixed-frequency PWM for noise-sensitive designs.

Technical Context

The TPS82695SIPR employs a frequency-locked ring-oscillating modulator architecture-eliminating traditional feedback loops-to achieve instantaneous transient response and best-in-class line/load regulation. Its non-linear control maintains constant 4MHz switching across input voltages (2.3–4.35V) and load currents (0–500mA), while enabling seamless PFM-to-PWM transition without output voltage overshoot.

It supports high-duty-cycle operation down to 100% duty cycle for extended battery runtime, incorporates internal current limiting (750mA peak), thermal shutdown (140°C), and undervoltage lockout (2.05–2.1V threshold). The integrated active power-down sequencing discharges VOUT via a 100Ω internal resistor when EN is low.

Key Specifications

Pinout & Package

SIP-8 BGA package (2.3mm × 2.9mm × 1.0mm); bottom-side thermal pad connected to GND; RoHS-compliant, lead-free finish; designed for standard SMT reflow assembly.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar step-down converter applications.

Compared with TPS82690SIPR and TPS82697SIPR, the TPS82695SIPR provides the lowest fixed output voltage (2.5V) in the family-making it optimal for modern ultra-low-power MCUs and mixed-signal ASICs that operate at minimum VDD, while retaining identical efficiency, footprint, and transient performance.

Availability

TPS82695SIPR is available at Aetrix Electronics and suitable for smartphone power management, wearable sensor hubs, medical patches, and IoT edge nodes requiring stable component supply with guaranteed long-term manufacturability.

Supply support for TPS82695SIPR 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 expertise in high-efficiency DC/DC conversion and miniaturized power solutions.

The TPS8269xSIP product line was engineered specifically for ultra-thin, battery-powered portable electronics-delivering complete, integrated power conversion in sub-1mm profiles without sacrificing efficiency or transient response.

FAQ

What is the output voltage tolerance of the TPS82695SIPR over temperature and load?

The TPS82695SIPR guarantees ±2% total DC output voltage accuracy across –40°C to +85°C ambient temperature, 2.3V–4.35V input voltage, and 0–500mA load current. This includes initial tolerance, line regulation (0.18%/V), load regulation (–0.0002%/mA), and thermal drift - ensuring reliable operation for precision analog circuits without external feedback adjustment. The TPS82695SIPR achieves this using factory-trimmed internal resistive divider and bandgap reference.

Does the TPS82695SIPR require external components to function?

No, the TPS82695SIPR is a fully integrated MicroSiP™ solution containing the controller, power MOSFETs, 1μH inductor, and input/output ceramic capacitors in a single SIP-8 BGA package. It operates stand-alone with only optional external components: a 4.7μF X5R/X7R ceramic capacitor improves PFM-mode ripple and transient response, and bulk input capacitance may be added for noisy sources - but neither is required for basic functionality. The TPS82695SIPR eliminates six discrete parts versus conventional buck designs.

How does the MODE pin affect efficiency and noise performance of the TPS82695SIPR?

When MODE = LOW (GND), the TPS82695SIPR automatically switches between high-efficiency PFM mode (<20mA) and fixed-frequency PWM mode (≥20mA), achieving >85% efficiency from 100μA to 500mA. When MODE = HIGH (VI), it forces continuous PWM operation - trading ~10–15% light-load efficiency for deterministic 4MHz switching frequency, which simplifies EMI filtering and eliminates beat frequencies in RF-sensitive applications like BLE or NFC. The TPS82695SIPR's MODE pin thus enables system-level optimization between battery life and spectral purity.

What protection features are built into the TPS82695SIPR?

The TPS82695SIPR includes integrated current overload protection (750mA peak switch current limit), thermal shutdown (140°C with 10°C hysteresis), undervoltage lockout (2.05–2.1V input threshold), and short-circuit protection (15mA input current limit under VOUT short). It also features internal soft-start (130μs) to prevent inrush, and active power-down sequencing with a 100Ω internal discharge resistor on VOUT to safely collapse the output rail during shutdown - all without external components. These protections are factory-tested and inherent to the TPS82695SIPR silicon design.

Can the TPS82695SIPR operate with input voltage close to output voltage?

Yes, the TPS82695SIPR supports 100% duty-cycle operation, enabling dropout as low as 100mV - critical for maximizing battery utilization. When VIN drops near 2.5V, the high-side MOSFET remains continuously on, maintaining regulation until VIN falls below the undervoltage lockout threshold (~2.05V). This allows the TPS82695SIPR to extract full energy from a single-cell Li-ion battery (3.0–4.2V nominal) down to ~2.1V, extending runtime in portable devices beyond what conventional buck converters achieve. The TPS82695SIPR's architecture inherently supports this low-VIN operation without external circuitry.