component
H7544-1
Public Made by Adomby adom
Shanghai Siproin Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23. Pinout settled in review by an AI reviewer against the manufacturer's 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
markdownH7544-1
Shanghai Siproin Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23
H7544-1 from Shanghai Siproin Microelectronics, in a SOT-23. 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 | GND | power_in | Ground. |
| 2 | VOUT | power_out | Regulated output. |
| 3 | VIN | power_in | Supply input. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Siproin Microelectronics |
| Package | SOT-23 |
| Category | PMIC |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Output Voltage | VOUT | 4.312 | 4.4 | 4.488 | V | VIN=6.4V; IOUT=10mA | 6 |
| Output Current | IOUT | 120 | 150 | mA | VIN=6.4V | 6 | |
| Load Regulation | ΔVOUT | 60 | 150 | mV | VIN=6.4V; 1mA≤IOUT≤50mA | 6 | |
| Current Consumption | ISS | 1.5 | 2 | μA | VIN=6.4V; No load | 6 | |
| Input Voltage | VIN | 15 | V | 6 | |||
| Output Voltage Temperature Coefficient | ΔVOUT/ΔTa | -0.7 | 0.7 | mV/℃ | VIN=6.4V; IOUT=10mA; 0℃<Ta<70℃ | 6 | |
| Voltage Drop | VDIF | 50 | mV | IOUT=1mA, ΔVOUT=2% | 6 | ||
| Line Regulation | ΔVOUT/(VOUT×ΔVIN) | 0.2 | %/V | 5.4V≤VIN≤16V; IOUT=1mA | 6 | ||
| Supply Voltage | -0.3 | 18 | V | 2 | |||
| Operating Temperature | -40 | 85 | ℃ | 2 | |||
| Storage Temperature | -50 | 125 | ℃ | 2 | |||
| Thermal Resistance, Junction to Ambient (SOT23) | θJA | 500 | ℃/W | No ambient airflow, no heat sink | 2 | ||
| Power Dissipation (SOT23) | PD | 0.2 | W | Ta=25℃ | 2 |
CAD (KiCad official)
- Symbol:
H7544-1 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
h7544-1-etched.step/h7544-1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);h7544-1.step/h7544-1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shanghai Siproin Microelectronics datasheet (12 pp, sha256
68d89a2084487dc3, retrieved 2026-11-13, tier: manufacturer) - 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).