component
ICW2199ASG
Public Made by Adomby adom
ICW DC-DC Converters, SOP-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
markdownICW2199ASG
ICW · DC-DC Converters · SOP-8
ICW2199ASG from ICW, in a SOP-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 | VSENSE | input | Current-sense terminal connected to the current-detection resistor RSENSE, where the datasheet gives a typical 100mV sense voltage in constant-current mode and an absolute maximum rating of 5.5V. |
| 2 | FB | input | Voltage feedback pin with a typical 1.25V reference (1.225V to 1.275V) and an absolute maximum rating of 5.5V. |
| 3 | VDD | power_in | Chip supply pin, with the internal LDO regulated from VIN and an absolute maximum rating of 5.5V. |
| 4 | NC | unconnected | No internal connection; this pin is an empty (no-connect) pin. |
| 5 | GND | power_in | Chip ground reference pin. |
| 6 | VIN | power_in | Input voltage pin with a 2.7V to 25V operating range and an absolute maximum rating of 25V, also used as the overvoltage-protection voltage feedback terminal. |
| 7 | EXT | output | Gate drive output for the external low-on-resistance N-channel power MOSFET, with an absolute maximum rating of 5.5V. |
| 8 | CE | input | Enable control pin: a logic high of at least 0.75V enables the device and a logic low of at most 0.3V disables it, with an absolute maximum rating of 5.5V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ICW |
| Package | SOP-8 |
| Category | Power Management ICs |
| Pins | 8 |
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 | 2.7 | 25 | V | 5 | ||
| FB voltage | VFB | 1.225 | 1.25 | 1.275 | V | 5 | |
| FB terminal input current | IFB | -0.1 | 0.1 | μA | VIN=1.8V~25V, FB terminal | 5 | |
| Oscillation frequency | fosc | 0.5 | 1 | 1.2 | MHZ | 5 | |
| PFM duty cycle | PFM Duty | 20 | 28 | 35 | % | VIN=VOUT(S)－0.1V, no load | 5 |
| Current sense voltage | VSENSE | 92 | 100 | 114 | mV | 5 | |
| UVLO undervoltage lockout | VUVLO | 1.9 | 2.1 | 2.3 | V | product with UVLO function | 5 |
| EN high-level input voltage | VSH | 0.75 | V | VIN=1.8V~25V, EN terminal | 5 | ||
| EN low-level input voltage | VSL | 0.3 | V | VIN=1.8V~25V, EN terminal | 5 | ||
| EN low-level input current | ISL | -0.1 | 0.1 | μA | VIN=1.8V~25V, EN terminal | 5 | |
| Sleep (shutdown) current | ISSS | 5 | μA | VEN=0V | 5 | ||
| Input voltage absolute maximum | VIN | 25 | V | 4 | |||
| Pin voltage (VDD, EN, VSENSE, EXT, FB) | 5.5 | V | 4 | ||||
| Operating ambient temperature range | -40 | 85 | ºC | ambient | 4 | ||
| Junction temperature range | -40 | 150 | ºC | 4 | |||
| Storage temperature range | -55 | 150 | ºC | 4 | |||
| Soldering temperature | 260 | ºC | 10 s | 4 | |||
| Operating current (switching, no load) | ISS1 | 300 | μA | switching operation, no load, VFB=VFB(S)×0.95 | 5 | ||
| Quiescent current (switching stopped) | ISS2 | 60 | μA | switching stopped, VFB=VFB(S)×1.5 | 5 | ||
| UVLO hysteresis | VUVLOHYS | 0.2 | V | product with UVLO function | 5 | ||
| Maximum duty cycle | Max Duty | 78 | % | VFB = VFB(S)×0.95 | 5 | ||
| Soft-start time | t | 2 | ms | 5 | |||
| Thermal resistance junction to air (SOP8) | θJA | 136 | ºC/W | junction to air | 4 | ||
| Package power dissipation (SOP8) | 0.92 | W | 4 |
CAD (KiCad official)
- Symbol:
ICW2199ASG - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
icw2199asg-etched.step/icw2199asg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);icw2199asg.step/icw2199asg.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ICW datasheet (9 pp, sha256
9faa1c2c5997d3b3, retrieved 2026-10-27, 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 (audit)), 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).