component
RT5750AHGJ5
Public Made by Adomby adom
Richtek Tech DC-DC Converters, TSOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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RT5750AHGJ5
Richtek Tech · DC-DC Converters · TSOT-23-5
RT5750AHGJ5 from Richtek Tech, in a TSOT-23-5. 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 | EN | input | Enable control input: logic high enables the device and GND disables it, and this pin must not be left floating. |
| 2 | GND | power_in | Signal and power ground pin; the bottom resistor of the feedback network should be placed as close as possible to this pin. |
| 3 | SW | output | Switch node between the internal switches; connect this pin to the inductor. |
| 4 | VIN | power_in | Power input with an input voltage range of 2.5V to 6V; connect input capacitors directly to this pin and the GND pins, with MLCC capacitance higher than 10F recommended. |
| 5 | FB | input | Feedback voltage input; connect to the midpoint of the external feedback divider, where the device regulates FB to the typical 0.6V feedback reference voltage. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Richtek Tech |
| Package | TSOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VIN Supply Input Operating Voltage | VIN | 2.5 | 6 | V | 10 | ||
| Under-Voltage Lockout Threshold | VUVLO | 2.15 | 2.3 | 2.47 | V | VIN rising | 10 |
| Shutdown Current | ISHDN | 0.3 | 1 | µA | VEN = 0V | 10 | |
| Quiescent Current (RT5750A) | IQ | 25 | 35 | µA | VEN = 2V, VFB = 0.63V | 10 | |
| Enable Voltage Threshold (EN high-level input voltage) | VEN_H | 0.6 | 0.82 | 0.95 | V | 10 | |
| Enable Voltage Threshold (EN low-level input voltage) | VEN_L | 0.5 | 0.76 | 0.9 | V | 10 | |
| Feedback Threshold Voltage | VFB | 591 | 600 | 609 | mV | 10 | |
| Feedback Input Current | IFB | -0.1 | 0 | 0.1 | A | VFB = 0.6V, TA = 25°C | 10 |
| High-Side Switch Current Limit | ILIM_H | 1.85 | 2.65 | A | 10 | ||
| Low-Side Switch Valley Current Limit | ILIM_L | 1.05 | 1.55 | 2.05 | A | 10 | |
| Supply Input Voltage | 2.5 | 6 | V | 9 | |||
| Output Voltage | 0.6 | V | 9 | ||||
| Junction Temperature Range | TJ | -40 | 125 | °C | 9 | ||
| Supply Input Voltage VIN | VIN | -0.3 | 6.5 | V | 9 | ||
| Switch Voltage SW | SW | -0.3 | 6.5 | V | 9 | ||
| Switch Voltage SW (transient) | SW | 2.5 | 9 | V | < 50ns | 9 | |
| Other Pins Voltage | -0.3 | 6.5 | V | 9 | |||
| Power Dissipation TSOT-23-5 | PD | 1.26 | W | TA = 25C | 9 | ||
| Lead Temperature (Soldering) | 260 | °C | Soldering, 10 sec. | 9 | |||
| Junction Temperature | TJ | 150 | °C | 9 | |||
| Storage Temperature Range | TSTG | -65 | 150 | °C | 9 | ||
| ESD Susceptibility HBM | 2 | kV | HBM (Human Body Model) | 9 | |||
| Junction-to-ambient thermal resistance (JEDEC standard) | θJA | 230.6 | C/W | JEDEC standard, TSOT-23-5 | 9 | ||
| Junction-to-case (top) thermal resistance | θJC(Top) | 21.8 | C/W | TSOT-23-5 | 9 | ||
| Junction-to-case (bottom) thermal resistance | θJC(Bottom) | 19.7 | C/W | TSOT-23-5 | 9 | ||
| Junction-to-ambient thermal resistance (specific EVB) | θJA(EVB) | 79.1 | C/W | specific EVB, TSOT-23-5 | 9 | ||
| Junction-to-top characterization parameter | ΨJC(Top) | 7.1 | C/W | TSOT-23-5 | 9 |
CAD (KiCad official)
- Symbol:
RT5750AHGJ5 - Footprint:
Package_TO_SOT_SMD:TSOT-23-5 - 3D model: TSOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
rt5750ahgj5-etched.step/rt5750ahgj5-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rt5750ahgj5.step/rt5750ahgj5.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Richtek Tech datasheet (27 pp, sha256
190c2bfe056f17f5, retrieved 2026-10-18, tier: lcsc) - 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).
# RT5750AHGJ5
**Richtek Tech** · DC-DC Converters · TSOT-23-5
RT5750AHGJ5 from Richtek Tech, in a TSOT-23-5. 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 | EN | input | Enable control input: logic high enables the device and GND disables it, and this pin must not be left floating. |
| 2 | GND | power_in | Signal and power ground pin; the bottom resistor of the feedback network should be placed as close as possible to this pin. |
| 3 | SW | output | Switch node between the internal switches; connect this pin to the inductor. |
| 4 | VIN | power_in | Power input with an input voltage range of 2.5V to 6V; connect input capacitors directly to this pin and the GND pins, with MLCC capacitance higher than 10F recommended. |
| 5 | FB | input | Feedback voltage input; connect to the midpoint of the external feedback divider, where the device regulates FB to the typical 0.6V feedback reference voltage. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Richtek Tech |
| Package | TSOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VIN Supply Input Operating Voltage | VIN | 2.5 | | 6 | V | | 10 |
| Under-Voltage Lockout Threshold | VUVLO | 2.15 | 2.3 | 2.47 | V | VIN rising | 10 |
| Shutdown Current | ISHDN | | 0.3 | 1 | µA | VEN = 0V | 10 |
| Quiescent Current (RT5750A) | IQ | | 25 | 35 | µA | VEN = 2V, VFB = 0.63V | 10 |
| Enable Voltage Threshold (EN high-level input voltage) | VEN_H | 0.6 | 0.82 | 0.95 | V | | 10 |
| Enable Voltage Threshold (EN low-level input voltage) | VEN_L | 0.5 | 0.76 | 0.9 | V | | 10 |
| Feedback Threshold Voltage | VFB | 591 | 600 | 609 | mV | | 10 |
| Feedback Input Current | IFB | -0.1 | 0 | 0.1 | A | VFB = 0.6V, TA = 25°C | 10 |
| High-Side Switch Current Limit | ILIM_H | 1.85 | 2.65 | | A | | 10 |
| Low-Side Switch Valley Current Limit | ILIM_L | 1.05 | 1.55 | 2.05 | A | | 10 |
| Supply Input Voltage | | 2.5 | | 6 | V | | 9 |
| Output Voltage | | 0.6 | | | V | | 9 |
| Junction Temperature Range | TJ | -40 | | 125 | °C | | 9 |
| Supply Input Voltage VIN | VIN | -0.3 | | 6.5 | V | | 9 |
| Switch Voltage SW | SW | -0.3 | | 6.5 | V | | 9 |
| Switch Voltage SW (transient) | SW | 2.5 | | 9 | V | < 50ns | 9 |
| Other Pins Voltage | | -0.3 | | 6.5 | V | | 9 |
| Power Dissipation TSOT-23-5 | PD | | | 1.26 | W | TA = 25C | 9 |
| Lead Temperature (Soldering) | | | | 260 | °C | Soldering, 10 sec. | 9 |
| Junction Temperature | TJ | | | 150 | °C | | 9 |
| Storage Temperature Range | TSTG | -65 | | 150 | °C | | 9 |
| ESD Susceptibility HBM | | | | 2 | kV | HBM (Human Body Model) | 9 |
| Junction-to-ambient thermal resistance (JEDEC standard) | θJA | | 230.6 | | C/W | JEDEC standard, TSOT-23-5 | 9 |
| Junction-to-case (top) thermal resistance | θJC(Top) | | 21.8 | | C/W | TSOT-23-5 | 9 |
| Junction-to-case (bottom) thermal resistance | θJC(Bottom) | | 19.7 | | C/W | TSOT-23-5 | 9 |
| Junction-to-ambient thermal resistance (specific EVB) | θJA(EVB) | | 79.1 | | C/W | specific EVB, TSOT-23-5 | 9 |
| Junction-to-top characterization parameter | ΨJC(Top) | | 7.1 | | C/W | TSOT-23-5 | 9 |
## CAD (KiCad official)
- Symbol: `RT5750AHGJ5`
- Footprint: `Package_TO_SOT_SMD:TSOT-23-5`
- 3D model: TSOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `rt5750ahgj5-etched.step` / `rt5750ahgj5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rt5750ahgj5.step` / `rt5750ahgj5.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Richtek Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589836420438392832) (27 pp, sha256 `190c2bfe056f17f5`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/rt5750ahgj5-datasheet.pdf)