Texas Instruments TPS62807YKAR

Overview

TPS62807YKAR from Texas Instruments is a 1.5 MHz, 0.6 A synchronous step-down DC/DC converter in a 6-pin WCSP package, delivering 0.8 V to 1.55 V output with 1% accuracy and 2.3 µA quiescent current in power save mode. It employs DCS-Control topology for ultra-low-I_Q operation and seamless PFM/PWM transition, targeting space-constrained, battery-powered systems such as wearables and IoT edge nodes.

For engineers reviewing the TPS62807YKAR datasheet, TPS62807YKAR pinout, TPS62807YKAR application, or TPS62807YKAR equivalent, this page delivers verified electrical specs, validated pin functions, confirmed R2D-based VOUT configuration, thermal performance data, and real-world substitution guidance - all specific to the YKA (DSBGA) variant with 1.5 MHz switching and 0.6 A rating.

Technical Context

The TPS62807YKAR integrates a DCS-Control regulation architecture combining hysteretic speed with voltage-mode stability, enabling fast transient response and low output ripple while maintaining high efficiency down to microamp loads. Its R2D (resistor-to-digital) converter reads a single external resistor on the VSEL/MODE pin to select one of 16 pre-defined output voltages within the 0.8–1.55 V range.

It supports dual operating modes: power save mode (PFM) for ultra-low quiescent current (2.3 µA) at light loads, and forced PWM mode (1.5 MHz fixed frequency) for noise-sensitive applications. Output discharge via the VOS pin ensures controlled VOUT ramp-down during disable, and 100% duty cycle operation extends regulation near VIN = VOUT.

Key Specifications

Pinout & Package

TPS62807YKAR uses a 6-pin, 0.35 mm pitch wafer-level chip-scale package (DSBGA, YKA), measuring 1.05 mm × 0.70 mm with solder bumps on bottom. The package supports <0.6 mm design height and <5 mm² footprint, optimized for 0201 passive placement and high-density PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS62801YKAR and TPS620871RLTR, the TPS62807YKAR uniquely balances ultra-small size, true 2.3 µA quiescent current, R2D programmability, and integrated output discharge - making it optimal for production-volume, space-constrained, long-life battery applications where those four attributes are simultaneously critical.

Availability

TPS62807YKAR is available at Aetrix Electronics and suitable for wearable electronics, IoT sensor nodes, and BLE peripheral modules requiring stable component supply across multi-year product lifecycles.

Supply support for TPS62807YKAR 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 50 years of innovation in high-efficiency DC/DC conversion.

The TPS6280x family was designed specifically for ultra-low-power, space-constrained battery-operated devices - delivering industry-leading quiescent current, minimal solution size, and flexible output configuration without sacrificing regulation accuracy or reliability.

FAQ

What is the maximum output current supported by the TPS62807YKAR?

The TPS62807YKAR supports up to 0.6 A continuous output current under recommended operating conditions (VIN ≥ 2.3 V). This rating is validated across –40°C to +125°C junction temperature and accounts for thermal derating in the 6-pin YKA package. Peak current capability is limited by internal switch current limits (1.1 A high-side, 1.0 A low-side), but sustained operation above 0.6 A risks thermal shutdown in typical PCB layouts.

How does the R2D converter in the TPS62807YKAR set the output voltage?

The TPS62807YKAR uses an internal resistor-to-digital (R2D) converter that measures the resistance between the VSEL/MODE pin and GND during startup. Based on the measured value (10–249 kΩ, E96 1%), it selects one of 16 pre-programmed internal feedback dividers to set VOUT between 0.8 V and 1.55 V in 50-mV steps. No external feedback resistors are needed, and the R2D process completes before soft-start begins.

Does the TPS62807YKAR support forced PWM mode, and how is it enabled?

Yes, the TPS62807YKAR supports forced PWM mode. After startup completes, applying a logic-high level (≥0.8 V) to the VSEL/MODE pin switches the device from power save (PFM) mode to forced PWM mode, locking the switching frequency at 1.5 MHz across all load conditions. This reduces output voltage ripple and eliminates frequency modulation noise, critical for RF-sensitive applications.

What is the purpose of the VOS pin on the TPS62807YKAR, and how should it be connected?

The VOS pin on the TPS62807YKAR serves two functions: it provides the feedback signal for output voltage regulation via an internal 12-MΩ divider, and it enables active output discharge when the device is disabled. It must be connected directly to the positive terminal of the output capacitor with the shortest possible trace - no series resistance or capacitance - to ensure accurate regulation and reliable discharge activation.

Can the TPS62807YKAR operate with input voltage equal to the output voltage?

Yes, the TPS62807YKAR supports 100% duty cycle operation, allowing it to maintain regulation when VIN drops to within ~0.1 V above VOUT. For example, with a 1.2 V output, the device continues regulating down to VIN ≈ 1.3 V. This extends usable battery life in single-cell alkaline or Li-ion systems, eliminating the need for additional boost or LDO stages in low-VIN scenarios.