Texas Instruments TPS62161DSGT

Mfr. Part

TPS62161DSGT

Manufacturer

Luminary Micro/Texas Instruments. Y-IC is a quality distributor for this brand and we will provide the best products and services to every customer

Detailed Description

1 A synchronous step-down (buck) DC-DC switching regulator. Fixed 1.8 V output. Wide 3 V to 17 V input range. High-frequency 2.25 MHz operation. Compact 8-WSON 2 x 2 mm package with exposed thermal pad. Designed for efficient point-of-load conversion in space-constrained designs. RoHS3 compliant. Operating temperature -40°C to +85°C TA. Surface-mount device

Key Features

Fixed 1.8 V regulated output

3 V to 17 V input range for flexibility across battery and bus rails

1 A continuous output current capability

Synchronous rectification for high efficiency and low heat

2.25 MHz switching frequency for small inductors and capacitors

Positive output configuration, single output channel

DCS-Control architecture for fast transient response and stable operation

Internal power switches for a simple, compact design

Automatic power-save/light-load operation (family feature) to reduce quiescent power

Enable pin for easy on/off control

Thermal performance enhanced by exposed pad

RoHS3 compliant materials and manufacturing

Key Advantages

Space-saving 2 x 2 mm footprint eases dense PCB layouts

High efficiency reduces thermal stress and extends battery life

Wide input range supports many front-end supplies from batteries to 12 V rails

Fixed 1.8 V output simplifies design for common digital rails (MCU, FPGA, memory)

High switching frequency allows use of tiny external components, lowering BOM size

Synchronous topology minimizes ripple and improves load regulation

Proven DCS-Control loop stability gives fast response without complex compensation

Simple design-in with minimal external components speeds time to market

Packaging

Device package type 8-WSON 2 x 2 mm, thin profile

Alternate designation 8-WFDFN with exposed thermal pad

Pin count 8. Typical pins include power input, enable, switch node, grounds, output sense, and control

Exposed pad used for heat spreading and electrical grounding. Solder to a solid ground copper area for best thermal performance

Material molded plastic with copper leadframe and NiPdAu plating on leads

Mounting type surface mount, compatible with standard SMT reflow

Tape and Reel TR for automated pick-and-place

Thermal characteristics application-dependent. Use the exposed pad and ample copper to lower thermal resistance and keep junction temperature within -40°C to +85°C TA limits

Electrical properties summary

- Topology buck, positive output

- Output type fixed 1.8 V

- Number of outputs 1

- Output current 1 A

- Input voltage 3 V to 17 V

- Switching frequency 2.25 MHz

- Synchronous rectifier yes

- Control method DCS-Control

Lifecycle

Current status commonly active in production based on available market data, not indicated as nearing discontinuation

If your application requires long-term supply assurance, our team can confirm factory lifecycle status for your build plan

Equivalent or alternative models to consider

- TPS62160 adjustable-output version (same family, set output with resistor divider)

- TPS62162 fixed 3.3 V version (same family)

- TPS62163 fixed 5.0 V version (same family)

- For higher current needs, look at TPS62130 series (higher output current, similar function)

- Cross-brand options may exist depending on requirements. For the most accurate cross-reference, contact Y-IC sales via our website

If a direct equivalent is not suitable for your design, please contact our sales team on the Y-IC website for tailored recommendations and up-to-date lifecycle confirmation

Key Application Areas

Point-of-load conversion for MCUs, FPGAs, DSPs, and ASIC core rails at 1.8 V

Portable and battery-powered devices, handheld instruments, and wearables

IoT nodes, sensors, and wireless modules needing compact, efficient 1.8 V supplies

Industrial control, PLC and HMI boards with 12 V or 24 V inputs down to 1.8 V logic rails

Communications equipment, routers, and access points for local digital rails

Storage and computing peripherals, SSDs and memory buffers requiring 1.8 V

Medical and test equipment with tight space and thermal constraints

Automotive infotainment and accessories (non-automotive-qualified designs) powered from intermediate rails

Datasheet

Y-IC provides the most authoritative datasheet for this product on our website. We recommend downloading it directly from this page to get complete specifications, design guidelines, and layout recommendations

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