component
ICW1236B33E8GQ1
Public Made by Adomby adom
ICW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownICW1236B33E8GQ1
ICW · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · ESOP-8
ICW1236B33E8GQ1 from ICW, 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 | VOUT | power_out | Regulator output pin; the output voltage is 3.3V by default (ADJ tied to GND) or set by an external divider R1/R2 with VOUT = VREF × (1 + R2/R1), and the output is limited to 1A. |
| 2 | ADJ | input | Adjust pin: tie to GND for the internal 3.3V feedback, or connect an external resistor divider to set VOUT with a reference of 0.7V typical. |
| 3 | GND | power_in | Ground pin; must be decoupled to VIN with a 4.7µF or larger ceramic capacitor placed close to the device. |
| 4 | N.C. | unconnected | Not connected; may be left floating or tied to GND. |
| 5 | EN | input | Enable pin: the device turns on at 1.6V minimum and turns off at 0.4V maximum. |
| 6 | N.C. | unconnected | Not connected; may be left floating or tied to GND. |
| 7 | N.C. | unconnected | Not connected; may be left floating or tied to GND. |
| 8 | VIN | power_in | Power input pin; a 4.7µF or larger ceramic capacitor must be placed tightly between VIN and GND, with input voltage range 2V to 6V. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ICW |
| 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 | 2 | 6 | V | 6 | ||
| Output voltage tolerance | VOUT(S) | -2 | 2 | % | IOUT=1mA | 6 | |
| Continuous output current | IOUT | 1 | A | VIN>2.1V | 6 | ||
| Ground current | IGND | 40 | µA | VEN=VIN, no load | 6 | ||
| Ground current at load | IGND | 390 | µA | VEN=VIN, IOUT=100mA | 6 | ||
| Shutdown current | ISHUT | 0.01 | µA | VEN=0 | 6 | ||
| Output current limit | ILIM | 1.4 | A | 6 | |||
| Current foldback | 0.4 | A | 6 | ||||
| Dropout voltage | VDROP | 160 | 250 | mV | VEN=VIN, IOUT=1A, VOUT=3.3V | 6 | |
| Line regulation | 3 | 15 | mV | VOUT(S)+1V≤VIN=VEN≤6V, IOUT=1mA | 6 | ||
| Load regulation | VOUT | 10 | 20 | mV | VIN=VEN=VOUT(S)+1.0V, 1mA≤IOUT≤1A | 6 | |
| Temperature stability | ΔVOUT | -50 | 50 | ppm/℃ | VIN=VEN=VOUT(S)+1.0V, IOUT=1mA, -40℃≤TA≤125℃ | 6 | |
| Reference voltage tolerance | VREF | 0.686 | 0.7 | 0.714 | V | 6 | |
| ADJ pin current | 10 | nA | VADJ = VREF | 6 | |||
| ADJ pin threshold | 0.05 | 0.1 | 0.2 | V | 6 | ||
| Enable start threshold voltage | 1.6 | V | Output ON | 6 | |||
| Enable shutdown threshold voltage | 0.4 | V | Output OFF | 6 | |||
| Shutdown pin current | 0.1 | 0.5 | µA | 6 | |||
| Output discharge resistance during shutdown | 30 | Ω | 6 | ||||
| Power supply rejection ratio | PSRR | 70 | dB | f=1kHz, IOUT=10mA | 6 | ||
| Power supply rejection ratio | PSRR | 68 | dB | f=10kHz, IOUT=10mA | 6 | ||
| Power supply rejection ratio | PSRR | 47 | dB | f=100kHz, IOUT=10mA | 6 | ||
| Power supply rejection ratio | PSRR | 55 | dB | f=1MHz, IOUT=10mA | 6 | ||
| Output noise voltage | VOUTN | 115 | µVRMS | CBP = 1µF, VOUT=3.3V, f=10Hz ~100KHz | 6 | ||
| Thermal shutdown temperature | TSD | 175 | ℃ | 6 | |||
| Thermal shutdown hysteresis | TSD_HYS | 35 | ℃ | 6 | |||
| Input voltage absolute maximum | VIN | -0.3 | 7 | V | 5 | ||
| Output voltage absolute range | VOUT | -0.3 | V | upper limit VIN+0.3 | 5 | ||
| ESD HBM | ESD HBM | -4000 | 4000 | V | HBM, printed ±4000 | 5 | |
| Operating ambient temperature | Topr | -40 | 125 | ℃ | 5 | ||
| Storage temperature | Tstg | -40 | 150 | ℃ | 5 |
CAD (KiCad official)
- Symbol:
ICW1236B33E8GQ1 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
icw1236b33e8gq1-etched.step/icw1236b33e8gq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);icw1236b33e8gq1.step/icw1236b33e8gq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ICW datasheet (14 pp, sha256
8dfd6b56bc1ce98b, 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), 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).