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Contents

README

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HT2307ARZ

HTCSEMI · DC-DC Converters · ESOP-8

HT2307ARZ 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 BS passive Bootstrap pin that is the positive rail for the high-side switch gate driver, with a 0.01uF capacitor connected between BS and SW.
2 VIN power_in Input supply pin for the converter, operating over 4.5V to 27V and bypassed to GND with a low-ESR capacitor.
3 SW output Switch output connected to the switching end of the inductor; the SW voltage is limited to VIN + 0.3 V absolute maximum.
4 GND power_in Ground reference pin, which must also be connected to the exposed pad.
5 FB input Feedback input regulated to 0.925V, connected to the output resistor divider to set the output voltage.
6 COMP passive Compensation pin for the error amplifier, where RCOMP is limited to 10kΩ maximum and CCOMP sets the loop zero.
7 EN input Enable input that turns the IC on above 2.7V and off below 1.1V (absolute maximum -0.3 to 5 V), and must not be left open.
8 SS input Soft-start control input where a capacitor from SS to GND sets the soft-start period, with 0.1uF giving 13 ms.
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 Supply Voltage (absolute maximum) -0.3 30 V 3
SW Voltage -0.3 0.3 V Relative to VIN: -0.3 to VIN + 0.3 3
BS Voltage -0.3 6 V Relative to VSW: VSW - 0.3 to VSW + 6 3
EN, FB, COMP Voltage -0.3 5 V 3
Maximum Junction Temperature 150 °C 3
Storage Temperature Range -65 150 °C 3
Input Supply Voltage (recommended) 4.5 27 V See note (1): operating over this voltage can cause overvoltage on VIN, SW, BS and EN 4
Operating Junction Temperature -20 125 °C See note (2): OTP recovery requires temperature to drop below 125°C 4
Feedback Voltage VFB 0.9 0.925 0.95 V 4.5V ≤ VIN ≤ 27V 4
EN Shutdown Threshold Voltage VEN 1.1 1.4 2 V VEN Rising 4
EN Lockout Threshold Voltage 2.2 2.5 2.7 V 4
Input UVLO Threshold Rising UVLO 3.8 4 4.4 V VEN Rising 5
Switching Frequency fSW 300 340 380 KHz 4
Junction to Ambient Thermal Resistance (θJA) θJA 20 °C/W Test on approximately 3 in2 copper area, 1oz copper FR4 board 3
Junction to Ambient Case Resistance (θJC) θJC 10 °C/W 3

CAD (KiCad official)

  • Symbol: HT2307ARZ
  • Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm
  • 3D model: ESOP-8 (KiCad packages3D, STEP)
  • 3D model files: ht2307arz-etched.step / ht2307arz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht2307arz.step / ht2307arz.glb are the bare package body.

Provenance

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

  • Datasheet: HTCSEMI datasheet (14 pp, sha256 3d5a3a164df193ef, retrieved 2026-10-18, 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