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Contents

README

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HT1015AREZ

HTCSEMI · DC-DC Converters · ESOP-8

HT1015AREZ from HTCSEMI, in a ESOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 EN input Enable input: pulling EN below the 2.2 V typical threshold (0.2 V hysteresis) shuts the HT1015A down, and pulling it above the threshold enables it.
2 VIN power_in Input supply for the internal control circuitry, both BOOT regulators and the high-side switch, specified for 9 V to 100 V with an absolute maximum range of -0.3 V to +120 V.
3 GND power_in Ground, to be placed as close to the output capacitor as possible to avoid the high-current switch paths.
4 GND power_in Ground, to be placed as close to the output capacitor as possible; the exposed pad must be connected to the GND plane for optimal thermal performance.
5 FB input Feedback input to the voltage hysteretic comparator, with the average FB voltage regulated to 800 mV (0.8 V reference) and an absolute maximum range of -0.3 V to +7 V.
6 NC unconnected No connection.
7 BOOT passive Bootstrap positive supply for the internal floating high-side MOSFET driver; a bypass capacitor must be connected between BOOT and SW, with VBOOT rated VSW-0.3 V to VSW+7 V.
8 SW output Switch node output from the high-side switch; a low forward-voltage Schottky rectifier to ground must be placed close to SW, with an absolute maximum range of -0.3 V to +120 V.
9 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer HTCSEMI
Package ESOP-8
Category Power Management (PMIC)
Pins 9

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Input Voltage VIN 9 100 V 4
SW, EN, VIN Voltage VSW,VEN,VIN -0.3 120 V 3
FB Voltage VFB -0.3 7 V 3
Storage Junction Temperature Tstg -55 150 ℃ 3
Lead Temperature (Soldering 10 sec.) Tsolder 260 ℃ Soldering 10 sec. 3
ESD Human Body Model 2 kV Human Body Model 3
Operating ambient temperature TA -40 85 ℃ For all packages 1
UVLO VSTRAT 8 V 4
UVLO Hysteresis VUVLO1 0.3 V 4
Shutdown supply current ISHUT 9 uA EN=0V 4
Input Quiescent Current IQ 500 uA VFB=1V 4
Enable threshold voltage VEN 2.2 V 4
Enable threshold voltage Hysteresis VUVLO2 0.2 V 4
FB Reference Threshold VFB 0.8 V 4
Feedback short voltage VFB(short) 0.35 V 4
Feedback short voltage Hysteresis VFB2 0.42 V 4
Switching frequency F 150 kHz IOUT=500mA 4
Maximum Duty Cycle DMAX 92 % VIN=12V 4
Current Limit Threshold IPEAK 1.5 A 4
On-resistance RDSON 400 mΩ VIN=18V 4
Thermal shutdown Temp TSD 150 ℃ 4
Thermal shutdown Temp Hysteresis TSH 30 ℃ 4

CAD (KiCad official)

  • Symbol: HT1015AREZ
  • Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm
  • 3D model: ESOP-8 (KiCad packages3D, STEP)
  • 3D model files: ht1015arez-etched.step / ht1015arez-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht1015arez.step / ht1015arez.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: HTCSEMI datasheet (10 pp, sha256 c19a0d8cc7e3eeff, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF