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dp2293
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Shenzhen Developer Microelec AC-DC Controllers and Regulators, SOT-23-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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README
markdownDP2293
Shenzhen Developer Microelec · AC-DC Controllers and Regulators · SOT-23-6
DP2293 from Shenzhen Developer Microelec, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND | power_in | IC ground reference. All internal circuitry is referenced to this pin. |
| 2 | FB | input | Feedback pin. Loop regulation is achieved by connecting a photo-coupler to this pin. PWM duty cycle is determined by FB voltage and the current-sense signal at pin 4 (CS). FB open voltage is 5.5 V typical; FB input impedance 20 kΩ; PWM gain ΔVFB/ΔVCS = 2.0 V/V. Vskip ≈ 1.0 V, OLP threshold VTH_OLP ≈ 3.6 V. |
| 3 | PRT | input | Voltage-sense pin for input Brownout Protection (BOP) and output Over Voltage Protection (OVP). Senses the auxiliary-winding divider voltage; OVP threshold VOVP = 2.5 V typical; brownout trigger current 100 uA / recovery 110 uA. Absolute max -0.3 to 7 V. |
| 4 | CS | input | Current-sense input pin. Senses primary-side MOSFET current across the external sense resistor for cycle-by-cycle current limiting (VCS_max = 1.0 V typical) and PWM control. Includes 300 ns leading-edge blanking (LEB) and internal slope compensation. Absolute max -0.3 to 7 V. |
| 5 | VDD | power_in | IC power-supply pin. UVLO turn-on at 21 V typical, turn-off at 9 V typical; VDD OVP threshold 31 V typical; internal Zener clamp at 35 V typical. Recommended operating range 10-28 V; absolute max 33 V. Start-up current 2 uA typical, operating current 1.2 mA typical. |
| 6 | GATE | output | Totem-pole gate-driver output to drive the external primary MOSFET. 400 mA drive capability with soft driving waveform for EMI reduction. Internal 13 V clamp for MOSFET gate protection. VOL ≤ 1 V @ 20 mA sink, VOH ≥ 7.5 V @ 20 mA source; rise 150 ns / fall 60 ns (1 nF load). Absolute max 20 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen Developer Microelec |
| Package | SOT-23-6 |
| Category | PMIC |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
DP2293 - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shenzhen Developer Microelec datasheet (None pp, sha256
382a9048e3e0889d, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).