# RT5762DHGH6F

**Richtek Tech** · DC-DC Converters · SOT-563

RT5762DHGH6F from Richtek Tech, in a SOT-563. 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 | FB | input | Output voltage sense input: the output is sensed at the FB pin through a resistive divider, with a feedback reference voltage of 0.6V typically. |
| 2 | GND | power_in | Power ground. |
| 3 | VIN | power_in | Power input with an input voltage range from 2.5V to 6V; input bypass capacitors connect directly to this pin and GND, and MLCC with capacitance higher than 10F is recommended. |
| 4 | SW | output | Switch node between the internal switch and the synchronous rectifier, connected to the inductor. |
| 5 | EN | input | Enable control input: logic high enables the device and connecting this pin to ground disables the device. |
| 6 | NC | unconnected | No internal connection for the RT5762C/D variant. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Richtek Tech |
| Package | SOT-563 |
| Category | Power Management |
| Pins | 6 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Input Operating Voltage | VIN | 2.5 |  | 6 | V |  | 11 |
| Under-Voltage Lockout Threshold | VUVLO | 2.15 | 2.3 | 2.45 | V | VIN rising | 11 |
| Supply Current (Shutdown) | ISHDN |  |  | 15 | µA | VEN = 0V | 11 |
| Supply Current (Quiescent) | IQ |  | 23 | 35 | µA | VEN = 2V, VFB = 0.7V, not switching | 11 |
| Soft-Start Time (RT5762A/B/C/D) | tSS | 1 | 1.5 | 2.4 | ms | 0%VOUT to 95%VOUT | 11 |
| Enable Voltage Threshold (EN high-level input) | VEN_H | 0.8 |  | 1.2 | V | EN high-level input voltage | 11 |
| Enable Voltage Threshold (EN low-level input) | VEN_L | 0.4 |  | 0.85 | V | EN low-level input voltage | 11 |
| Feedback Threshold Voltage | VFB | 0.594 | 0.6 | 0.606 | V |  | 11 |
| Feedback Input Current | IFB |  | 0.1 | 0.4 | µA | VFB = 0.6V, TA = 25°C | 11 |
| High-Side On-Resistance | RDS(ON)_H |  | 100 | 120 | mΩ |  | 11 |
| Low-Side On-Resistance | RDS(ON)_L |  | 70 | 85 | mΩ |  | 11 |
| High-Side Switch Current Limit | ILIM_H | 3 | 3.45 | 3.9 | A | VIN = 3.6V, VOUT = 1.2V, L = 1.5H, TA = 25C | 11 |
| Low-Side Switch Valley Current Limit | ILIM_L | 2 | 2.3 | 2.6 | A |  | 11 |
| Switching Frequency | fSW | 1 | 1.2 | 1.44 | MHz |  | 11 |
| Output Under-Voltage Threshold (Hiccup, H option) | VUVP |  | 40 |  | % |  | 11 |
| Minimum Off-Time | tOFF_MIN |  | 90 |  | ns |  | 11 |
| Thermal Shutdown Threshold | TSD |  | 150 |  | °C |  | 12 |
| Thermal Shutdown Hysteresis | TSD |  | 20 |  | °C |  | 12 |
| Output Discharge Switch On-Resistor (RT5762A/B/C/D) | RDISCHG |  | 100 |  | Ω | VEN = 0V (Protection) | 12 |
| Supply Input Voltage (recommended) | VIN | 2.5 |  | 6 | V |  | 10 |
| Junction Temperature Range (recommended) | TJ | -40 |  | 125 | °C |  | 10 |
| Output Voltage (recommended) | VOUT | 0.6 |  |  | V | upper limit printed as VIN | 10 |
| Supply Input Voltage (absolute maximum) | VIN | -0.3 |  | 6.5 | V |  | 10 |
| VIN to SW (absolute maximum) | VIN-SW | -0.3 |  | 6.5 | V |  | 10 |
| VIN to SW (t ≤ 10ns, absolute maximum) | VIN-SW | -2.5 |  | 9 | V | t ≤ 10ns | 10 |
| Switch Voltage (absolute maximum) | VSW | -0.3 |  | 6.5 | V |  | 10 |
| SW (absolute maximum, transient) | VSW | -2.5 |  | 9 | V | t ≤ 10ns | 10 |
| Other Pins (absolute maximum) |  | -0.3 |  | 6.5 | V |  | 10 |
| Lead Temperature (soldering, 10 sec.) |  |  |  | 260 | °C | 10 sec. | 10 |
| Junction Temperature (absolute maximum) | TJ |  |  | 150 | °C |  | 10 |
| Storage Temperature Range | TSTG | -65 |  | 150 | °C |  | 10 |
| ESD Susceptibility HBM |  |  |  | 2 | kV | Human Body Model | 10 |
| Junction-to-ambient thermal resistance (JEDEC standard), SOT-563 | JA |  | 108 |  | °C/W | JEDEC standard | 10 |
| Junction-to-case (top) thermal resistance, SOT-563 | JC(Top) |  | 109 |  | °C/W |  | 10 |
| Junction-to-case (bottom) thermal resistance, SOT-563 | JC(Bottom) |  | 35.4 |  | °C/W |  | 10 |
| Junction-to-ambient thermal resistance (specific EVB), SOT-563 | JA(EVB) |  | 102.5 |  | °C/W | specific EVB | 10 |
| Junction-to-top characterization parameter, SOT-563 | JC(Top) |  | 20.7 |  | °C/W | junction-to-top characterization parameter | 10 |
| Junction-to-board characterization parameter, SOT-563 | JB |  | 83.1 |  | °C/W | junction-to-board characterization parameter | 10 |

## CAD (KiCad official)

- Symbol: `RT5762DHGH6F`
- Footprint: `Package_TO_SOT_SMD:SOT-563`
- 3D model: SOT-563 (KiCad packages3D, STEP)
- 3D model files: `rt5762dhgh6f-etched.step` / `rt5762dhgh6f-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rt5762dhgh6f.step` / `rt5762dhgh6f.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Richtek Tech datasheet](docs/rt5762dhgh6f-datasheet.pdf) (31 pp, sha256 `0432953569810e28`, retrieved 2026-10-27, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `off` (skipped (clean text read)), 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/rt5762dhgh6f-datasheet.pdf)