component
OC5862
Public Made by Adomby adom
OCX DC-DC Converters, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownOC5862
OCX · DC-DC Converters · ESOP-8
OC5862 from OCX, 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 | NC | unconnected | No internal connection; the datasheet says to leave this pin floating (悬空). |
| 2 | SW | output | Switching output that connects the internal power MOSFET to the external inductor and Schottky freewheeling diode, with absolute maximum VSW of -0.3 V to VIN+0.3 V. |
| 3 | SW | output | Second switching output pin, bonded together with pin 2 as the SW node, with absolute maximum VSW of -0.3 V to VIN+0.3 V. |
| 4 | IN | power_in | Chip supply input with a stated operating range of 5.5 V to 60 V (absolute maximum -0.3 V to 65 V), and the datasheet asks for large copper pours on IN for heat dissipation. |
| 5 | EN | input | Enable input with rising threshold 1.35 V, falling threshold 1.17 V and 180 mV hysteresis; it must not float and, when unused, is pulled up to IN through about 510 kΩ, with an absolute maximum sink current of 100 μA. |
| 6 | FB | input | Output feedback input compared against the internal 0.812 V reference (0.792 V to 0.832 V), with an absolute maximum voltage of -0.3 V to 6 V, and the feedback divider should be placed close to the chip. |
| 7 | FS | input | Switching frequency set pin: a resistor to ground sets fSW via fSW = 250 / (250 + R_FS) MHz, with FS grounded giving 1 MHz (the maximum) and 510 kΩ giving 0.329 MHz, and an absolute maximum voltage of -0.3 V to 6 V. |
| 8 | VSS | power_in | Ground reference for the device; the exposed bottom thermal pad is also connected to VSS. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | OCX |
| Package | ESOP-8 |
| Category | Power Supply Chip |
| 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 |
|---|---|---|---|---|---|---|---|
| 反馈电压 (Feedback voltage) | VFB | 0.792 | 0.812 | 0.832 | V | 4.5V< VIN < 60V | 4 |
| 电流限制阈值 (Current limit threshold) | ILIM | 1 | 1.25 | 1.5 | A | 4 | |
| IN 脚工作电压范围 (IN pin operating voltage range) | VIN | -0.3 | 65 | V | 3 | ||
| SW 脚工作电压范围 (SW pin operating voltage range) | VSW | -0.3 | V | upper limit printed as VIN+0.3 | 3 | ||
| EN、FB、FS 脚工作电压范围 (EN, FB, FS pin operating voltage range) | Vmax | -0.3 | 6 | V | 3 | ||
| EN 脚灌电流 (EN pin sink current) | IEN_SINK | 100 | μA | 3 | |||
| 工作温度范围 (Operating temperature range) | TA | -40 | 125 | oC | 3 | ||
| ESOP8 封装最大功耗 (ESOP8 maximum power dissipation) | PESOP8 | 0.8 | W | 3 | |||
| 存储温度范围 (Storage temperature range) | TSTG | -45 | 150 | oC | 3 | ||
| 焊接温度范围 (Soldering temperature) | TSD | 260 | oC | time less than 30 s | 3 | ||
| 静电耐压值 (ESD withstand voltage, human body model) | VESD | 2000 | V | Human body model | 3 | ||
| 最大开关频率 (Maximum switching frequency) | fSW | 1 | MHz | fSW maximum value set via FS resistor | 7 |
CAD (KiCad official)
- Symbol:
OC5862 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
oc5862-etched.step/oc5862-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);oc5862.step/oc5862.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: OCX datasheet (9 pp, sha256
4f6c0d740f131607, retrieved 2026-10-17, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).