MP9943GQ-Z

LM5164DDAR is a Texas Instruments 100 V input synchronous buck converter in SOIC-8, tape and reel — for industrial power supplies: 48 V bus step-down, PoE front ends and motor-drive auxiliaries. The 100 V input rating is the selection point: direct operation from high-voltage industrial buses that standard 60 V bucks cannot survive. Selection advice: the DDAR suffix denotes SOIC-8 in tape and reel for production — plan the external MOSFET, inductor and compensation network per TI's reference design; this is a controller-class part, not a module. For lower-voltage rails, cheaper integrated bucks save board space. Parameters verified against the TI official product page. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

The MIC28517T-E/PHA is a Microchip Technology 70 V, 8 A Hyper Speed Control synchronous buck regulator in a 32-pin 6 mm by 6 mm VQFN. Its 4.5 V to 70 V input range and adjustable 0.6 V to 32 V output with +/-1 percent feedback accuracy cover 12 V, 24 V and 48 V industrial and telecom rails from a single device, which consolidates inventory and simplifies platform power design. The adaptive on-time architecture gives ultra-fast transient response with small output capacitance, and a pin-selectable HyperLight Load or forced continuous-conduction mode keeps light-load efficiency high. Adjustable 270 kHz to 800 kHz switching, internal compensation, a built-in 5 V regulator, auxiliary bootstrap LDO, programmable current limit, hiccup short-circuit protection and thermal shutdown reduce external component count and protect the load, supporting safe start-up into a pre-biased output. It operates from -40C to +125C junction temperature. Selection advice: this variant carries the MODE pin for HLL versus CCM selection; if your design instead needs an externally adjustable soft-start time, choose its sibling MIC28516, which trades the MODE pin for a soft-start pin. Featured on hqew.com yesterday-hot list (2026-10-13). Parameters verified against Microchip Technology documentation. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

TLV62568DBVR is a Texas Instruments 1 A synchronous step-down buck converter in SOT-23-5 (DBV), tape-and-reel packing (R) — 2.5 V to 5.5 V input, adjustable output from 0.6 V up to VIN, up to 95% efficiency, 35 µA operating quiescent current, 1.5 MHz typical switching frequency, power-save mode for light-load efficiency, 100% duty cycle for lowest dropout, internal soft start, overcurrent and thermal-shutdown protection, −40 to +125 °C. The adjustable output with 100% duty cycle is the selection point: one part generates 1.2 V, 1.8 V, 3.3 V or any logic rail from a 5 V or Li-ion source with near-zero dropout, so the same footprint covers multiple rails across a board — a general-purpose point-of-load workhorse for set-top boxes, cameras, routers and disk drives. Selection advice: the DBV is the 5-pin SOT-23; the R suffix is tape and reel. The adjustable TLV62568 covers what the fixed-output members of the family do plus any custom rail — confirm the exact fixed-output code only if the BOM specifies one. TI lists TLV62568DBVR as Active. Evidence: TI TLV62568 datasheet (SLVSD89) and distributor listings confirm 1 A, 2.5–5.5 V, 0.6 V to VIN, SOT-23-5 and tape-and-reel packing. Match the full TLV62568DBVR code. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

TPS54302DDCR is a Texas Instruments 3 A synchronous buck converter in SOT-23-6, tape and reel — for compact point-of-load power: set-top boxes, printers and industrial I/O modules. 3 A from a SOT-23-6 is the selection point: unusual current density for general-purpose rails. Selection advice: the DDCR suffix denotes SOT-23-6 in tape and reel for production — follow TI's layout guidance closely, as thermal performance in this package depends on copper area; for higher currents, larger-package bucks are the step up. Parameters verified against the TI official product page. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

TPS560430XDBVR is a Texas Instruments 36V, 4A synchronous buck converter — for industrial and automotive power rails: 4A continuous output current, up to 36V input, synchronous rectification for high efficiency, SOT-23-6 package. The synchronous topology eliminates the external Schottky diode, so efficiency stays high across the load range while the BOM shrinks; the 36V input rating tolerates 24V industrial buses with margin for transients. Business impact: compact high-current bucks are the default choice for point-of-load regulation — the SOT-23-6 footprint fits where larger packages cannot, and TI availability keeps lead times manageable. Selection advice: the XDBVR code denotes SOT-23-6 on tape and reel — verify the switching frequency and compensation against the TI datasheet for your specific input/output combination. Ranked #11 on the hqbuy.com real-time hot list (2026-10-05). Parameters verified against Texas Instruments documentation. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

TPS56221DQPR is a Texas Instruments 25A synchronous buck converter — for high-current point-of-load supplies: 4.5V to 14V input, output down to 0.6V at up to 25A, integrated NexFET power MOSFETs, fixed-frequency options of 300kHz, 500kHz and 1MHz, voltage-mode control with feed-forward, 600mV reference with 1% accuracy, programmable soft start, resistor-programmed overcurrent protection, thermal shutdown, 22-pin 5x6mm PQFN PowerPAD package. The integrated NexFET power block delivers 25A from a 30mm² footprint, so FPGA and processor core rails fit tight board areas; feed-forward compensation responds instantly to input voltage changes. Business impact: high-current POL converters are critical-path components in server and telecom designs — a stocked, well-documented part accelerates power-tree qualification. Selection advice: the DQPR code is the PQFN-22 package in tape and reel — verify the overcurrent protection programming resistor and loop compensation against the TI datasheet for the target load transient. Featured on hqbuy.com hot search (2026-09-28). Parameters verified against Texas Instruments documentation. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

MP2307DN is an MPS 23 V 3 A synchronous step-down converter in SOIC-8 with exposed pad — for legacy module power designs: note this part is NRND (not recommended for new designs) per distributor listings — specify for maintenance and repair only. 4.75–23 V input, 0.925–20 V adjustable output, 340 kHz switching, synchronous rectification (no external Schottky needed). Heat evidence: none for new designs — listed here for aftermarket and repair sourcing where the original BOM calls for the MP2307. Selection advice: do not design in new — for new 3 A synchronous bucks consider the MP1584 or TI TPS54360B; we can source MP2307DN for legacy builds subject to availability confirmation. Parameters verified against MPS documentation. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

A4988SETTR-T is an Allegro MicroSystems DMOS microstepping stepper motor driver in QFN-28, tape and reel — for 3D printers, CNC machines and consumer motion control where a proven low-cost stepper driver matters. Built-in translator with full-step down to 1/16 microstepping, 35 V and ±2 A drive is the selection point: one STEP pulse equals one microstep, no phase tables to program. Selection advice: the SETTR-T suffix denotes the QFN-28 package in tape and reel; the SET temperature grade covers −20 °C to +85 °C. Against the TI DRV8825 on this site (45 V, 2.5 A, 1/32 step): the A4988 costs less and is the 3D-printing classic, but tops out at 1/16 microstepping and lower voltage — pick it when the motor fits within 35 V and 2 A. Synchronous rectification keeps dissipation low; thermal shutdown and short-circuit protections are built in. On 3D-printer StepStick-style modules the A4988 and DRV8825 footprints are largely interchangeable — but check driver orientation, microstepping jumpers and current setting before swapping, as the two parts differ. Parameters verified against distributor and manufacturer documentation. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

ADP151AUJZ-3.3-R7 is an Analog Devices ultralow-noise 3.3 V LDO regulator in TSOT-23-5, tape and reel — for noise-sensitive rails: RF, VCO and PLL supplies where output noise matters more than current. 9 microvolt RMS noise with no bypass capacitor required is the selection point: ultralow noise without the extra capacitor that competing LDOs need. Selection advice: the R7 suffix denotes tape and reel on a 7-inch reel; against the LD1086DT33TR on this site — the ADP151 is the 200 mA precision part, the LD1086 the 1.5 A workhorse. 2.2 V to 5.5 V input, 150 mV dropout at 200 mA, 70 dB PSRR at 10 kHz. −40 °C to +125 °C. ADI lists this part as Active through distribution. Parameters verified against distributor and manufacturer documentation. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

AL58263A is a Diodes Incorporated 16-channel constant-current LED driver with 16-bit grayscale Adaptive Pulse Density Modulation (APDM) — for indoor/outdoor LED video displays, variable message signs, traffic signs, billboards and LCD backlighting where uniform brightness and flicker-free dimming decide display quality. The APDM architecture is the selection point: by mitigating non-ideal output-current distortion from non-symmetric transient responses and separating frame waveform components, it improves output-current linearity and raises the system refresh rate versus conventional PWM dimming. It runs from 3.0 V to 5.0 V, supports output channel voltages up to 15 V, interfaces with a 25 MHz data clock, and delivers up to 45 mA of precise programmable current per channel. Each channel current is set through the digital interface, while the overall range is set by one external sensing resistor plus two independent 4-bit global current-gain controls (separate Group A and Group B banks). Accuracy is 1.5% typical / 3.5% maximum channel-to-channel current skew and 3% typical / 6% maximum chip-to-chip skew, with 0.1%/V output-voltage regulation, and built-in LED open/short diagnostics whose results are stored in registers for MCU readout, plus a 155°C thermal alarm with 15°C hysteresis. It comes in a thermally enhanced TSSOP-24EP package with exposed pad, rated -40°C to +105°C ambient. Selection advice: do not treat the A variant as a drop-in identical to the base AL58263 — the base part runs 3.0 V to 5.5 V with up to 55 mA per channel and a single 6-bit global current control, so re-check voltage headroom, current budget and gain-register programming when swapping. Solder the exposed thermal pad and provide a generous copper spread for full-current operation. Featured on Mouser New Products (2026-10-15). Parameters verified against Diodes Incorporated documentation. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.