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H7211-28M5R

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by Ray

Shanghai Siproin Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

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H7211-28M5R

Shanghai Siproin Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

H7211-28M5R from Shanghai Siproin Microelectronics, in a SOT-23-5. 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 VIN power_in Power input pin. Accepts 2.0 V to 6.0 V (absolute max -0.3 V to 7 V). Bypass to VSS with a low-ESR ceramic capacitor (10 uF typical per the application circuit).
2 VSS power_in Ground reference for the regulator. Connect directly to the system ground plane.
3 CE input Chip Enable input. Logic high (VCE_H >= 1.5 V, up to VIN) enables the regulator; logic low (VCE_L <= 0.3 V) puts the device into shutdown (<0.1 uA) and activates the ~80 ohm output-capacitor discharge shunt. Do not leave floating.
4 NC unconnected No internal connection. Leave floating or tie to VSS for mechanical strength; do not use as a routing via.
5 VOUT power_out Regulated output pin. Fixed 2.8 V (M5R suffix) with +/-2% tolerance, up to 300 mA output current, dropout ~160 mV typ at 150 mA. Requires a low-ESR ceramic output capacitor (10 uF typical).

Key specifications

Parameter Value
Manufacturer Shanghai Siproin Microelectronics
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • H7211-28M5R
  • H7211-28M5RDR

CAD (KiCad official)

  • Symbol: H7211-28M5R
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Shanghai Siproin Microelectronics datasheet (9 pp, sha256 b0219dac2623b496, 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).

Datasheet PDF