component
RT6273BHGJ6F
Public Made by Adomby adom
Richtek Tech DC-DC Converters, TSOT-23-6. Pinout cross-checked by two models against the 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
markdownRT6273BHGJ6F
Richtek Tech · DC-DC Converters · TSOT-23-6
RT6273BHGJ6F from Richtek Tech, in a TSOT-23-6. 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 | Power ground. |
| 2 | SW | output | Switch node between the internal switch and the synchronous rectifier; connect this pin to the inductor and bootstrap capacitor. |
| 3 | VIN | power_in | Power input with an input voltage range of 4.5V to 17V; connect input bypass capacitors directly to this pin and the GND pins, using MLCC capacitance higher than 20µF as recommended. |
| 4 | FB | input | Feedback voltage input connected to the midpoint of the external resistive divider; the device regulates FB to the feedback reference voltage, typically 0.765V. |
| 5 | EN | input | Enable control input; a logic high enables the device and connecting this pin to GND disables it. |
| 6 | BOOT | passive | Bootstrap capacitor connection node supplying the high-side gate driver; connect a 0.1µF ceramic capacitor between this pin and the SW pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Richtek Tech |
| Package | TSOT-23-6 |
| Category | Power Management (PMIC) |
| 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 | 4.5 | 17 | V | 9 | ||
| Under-Voltage Lockout Threshold | VUVLO | 3.7 | 4 | 4.3 | V | 9 | |
| Shutdown Current | ISHDN | 4 | µA | VEN = 0V | 9 | ||
| Enable Voltage Threshold, EN high-level input voltage | VEN_H | 1.16 | 1.25 | 1.34 | V | EN high-level input voltage | 9 |
| Enable Voltage Threshold, EN low-level input voltage | VEN_L | 1.01 | 1.1 | 1.19 | V | EN low-level input voltage | 9 |
| EN Pin Pull-Down Resistance | REN_DN | 225 | 450 | 900 | kΩ | EN pin resistance to GND, VEN = 12V | 9 |
| Feedback Threshold Voltage | VFB | 758 | 765 | 772 | mV | VOUT = 1.05V | 9 |
| Feedback Input Current | IFB | -0.1 | 0 | 0.1 | µA | VFB = 0.8V, TA = 25°C | 9 |
| Low-Side Switch Valley Current Limit | ILIM_L | 3.2 | 4.2 | 5.2 | A | 9 | |
| Supply Input Voltage (absolute maximum) | VIN | -0.3 | 20 | V | 8 | ||
| Enable Voltage (absolute maximum) | EN | -0.3 | 20 | V | 8 | ||
| Switch Voltage (absolute maximum) | SW | -0.3 | 20.3 | V | 8 | ||
| Switch Voltage transient | SW | -5 | 25 | V | < 100ns | 8 | |
| BOOT Voltage (absolute maximum) | BOOT | -0.3 | 26 | V | 8 | ||
| BOOT to SW Voltage (absolute maximum) | VBOOT − VSW | -0.3 | 6 | V | 8 | ||
| Feedback Voltage (absolute maximum) | FB | -0.3 | 6 | V | 8 | ||
| Lead Temperature | 260 | °C | Soldering, 10 sec. | 8 | |||
| Junction Temperature | 150 | °C | 8 | ||||
| Storage Temperature Range | -65 | 150 | °C | 8 | |||
| Power Dissipation | PD | 1.64 | W | TA = 25°C, TSOT-23-6 (FC) | 8 | ||
| Supply Input Voltage (recommended) | VIN | 4.5 | 17 | V | 8 | ||
| Junction Temperature Range (recommended) | TJ | -40 | 125 | °C | 8 | ||
| Junction-to-ambient thermal resistance | θJA | 88.7 | °C/W | JEDEC standard, TSOT-23-6 (FC) | 8 | ||
| Junction-to-case (top) thermal resistance | θJC(Top) | 76.9 | °C/W | TSOT-23-6 (FC) | 8 | ||
| Junction-to-case (bottom) thermal resistance | θJC(Bottom) | 6 | °C/W | TSOT-23-6 (FC) | 8 | ||
| Junction-to-ambient thermal resistance (specific EVB) | θJA(EVB) | 61 | °C/W | specific EVB, TSOT-23-6 (FC) | 8 | ||
| Junction-to-top characterization parameter | ΨJC(Top) | 13.9 | °C/W | TSOT-23-6 (FC) | 8 | ||
| Junction-to-board characterization parameter | ΨJB | 31.53 | °C/W | TSOT-23-6 (FC) | 8 |
CAD (KiCad official)
- Symbol:
RT6273BHGJ6F - Footprint:
Package_TO_SOT_SMD:TSOT-23-6 - 3D model: TSOT-23-6 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Richtek Tech datasheet (32 pp, sha256
a57b2a243bb3f233, retrieved 2026-10-31, tier: manufacturer) - 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).