# TLV61047DDCR

**Texas Instruments** · IC · SOT-23-5

TLV61047DDCR from Texas Instruments, in a SOT-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 | SW | passive | Switch pin of the converter, connected to the drain of the internal power MOSFET; rated -0.3V to 32V. |
| 2 | GND | power_in | Ground. |
| 3 | FB | input | Voltage feedback of output voltage, connected to the center tap of a resistor divider to program the output voltage; rated -0.3V to 6V. |
| 4 | EN | input | Enable logic input where logic high enables the device and logic low disables it into shutdown mode; rated -0.3V to 20.5V. |
| 5 | VIN | power_in | IC power supply input, operating range 2.6V to 20V and rated -0.3V to 20.5V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| Category |  |
| 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 |
|---|---|---|---|---|---|---|---|
| UVLO threshold rising | VIN_UVLO |  | 2.42 | 2.55 | V | VIN_UVLO rising | 5 |
| UVLO threshold falling | VIN_UVLO | 2.1 |  | 2.26 | V | VIN_UVLO falling | 5 |
| Input voltage range | VIN | 2.6 |  | 20 | V |  | 5 |
| Quiescent current into VIN pin | IQ_VIN |  | 25 | 50 | µA | IC enabled, no load, no switching, VIN = 2.6V to 20V, FB=1.4V, TJ=-40°C to 125°C | 5 |
| Shutdown current into VIN pin | ISD |  | 0.4 | 1.5 | µA | IC disabled, VIN = 2.6V to 20V, TJ= up to 85°C | 5 |
| Leakage current into FB pin | IFB_LKG |  |  | 50 | nA | TJ=-40°C to 125°C | 5 |
| Leakage current into SW pin | ISW_LKG |  |  | 500 | nA | IC disabled, SW = 28V, TJ=-40°C to 125°C | 5 |
| Output voltage range | VOUT | 4.5 |  | 28 | V |  | 5 |
| Reference voltage at FB pin | VREF | 1.209 | 1.233 | 1.258 | V | PWM and PFM mode, TJ=-40°C to 125°C | 5 |
| Switching frequency TLV61047 | FSW | 1.2 | 1.6 | 2 | MHz | VIN = 5V, VOUT = 12V | 5 |
| Minimum on time | tON_min |  | 45 | 150 | ns |  | 5 |
| Peak switch current limit | ILIM_SW | 1.9 | 2.2 | 2.5 | A | VIN = 5V | 5 |
| Voltage at VIN, EN |  | -0.3 |  | 20.5 | V |  | 4 |
| Voltage at SW |  | -0.3 |  | 32 | V |  | 4 |
| Voltage at FB |  | -0.3 |  | 6 | V |  | 4 |
| Operating junction temperature range | TJ | -40 |  | 150 | °C |  | 4 |
| ESD HBM | V(ESD) | -2000 |  | 2000 | V | Human body model, all pins | 4 |
| ESD CDM | V(ESD) | -500 |  | 500 | V | Charged device model, all pins | 4 |
| Input voltage range | VIN | 2.6 |  | 20 | V |  | 4 |
| Output voltage range | VOUT | 4.5 |  | 28 | V |  | 4 |
| Inductance range | L | 2.2 | 4.7 | 22 | µH |  | 4 |
| Effective input capacitance range | CIN | 1 |  | 10 | µF |  | 4 |
| Effective output capacitance range | COUT | 1 |  | 10 | µF |  | 4 |
| Operating junction temperature | TJ | -40 |  | 125 | °C |  | 4 |
| Junction-to-ambient thermal resistance | RθJA |  | 145.8 |  | °C/W | DDC (SOT23) 5 pins | 4 |
| Junction-to-case (top) thermal resistance | RθJC(top) |  | 77.6 |  | °C/W |  | 4 |
| Junction-to-board thermal resistance | RθJB |  | 56.5 |  | °C/W |  | 4 |
| Junction-to-top characterization parameter | ψJT |  | 28.5 |  | °C/W |  | 4 |
| Junction-to-board characterization parameter | ψJB |  | 54.9 |  | °C/W |  | 4 |
| UVLO hysteresis | VIN_HYS |  | 160 |  | mV |  | 5 |
| Low-side MOSFET on resistance | RDS(on) |  | 200 |  | mΩ | VIN = 5V, VOUT = 12V | 5 |
| Soft startup time | tSTARTUP |  | 2.5 |  | ms | Internal SS ramp time, from 0V to VREF | 5 |
| EN logic high threshold | VEN_H |  | 1.2 |  | V |  | 5 |
| EN logic low threshold | VEN_L |  | 0.4 |  | V |  | 5 |
| EN pull down resistor | REN |  | 1 |  | MΩ |  | 5 |
| Thermal shutdown threshold | TSD |  | 170 |  | °C | TJ rising | 5 |
| Thermal shutdown hysteresis | TSD_HYS |  | 20 |  | °C | TJ falling below TSD | 5 |

## CAD (KiCad official)

- Symbol: `TLV61047DDCR`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `tlv61047ddcr-etched.step` / `tlv61047ddcr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tlv61047ddcr.step` / `tlv61047ddcr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/tlv61047.pdf?ts=1742298005976&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FTLV61047%253Futm_source%253Dgoogle%2526utm_medium%253Dcpc%2526utm_campaign%253Dapp-null-null-GPN_EN-cpc-pf-google-ww_en_cons%2526utm_content%253DTLV61047%2526ds_k%253DTLV61047%2526DCM%253Dyes%2526gclsrc%253Daw.ds%2526gad_source%253D1%2526gbraid%253D0AAAAAC068F2dsB8gIAI-qKmVZD6KHcLBW%2526gclid%253DEAIaIQobChMI0bat6sWTjAMVWdPCBB07IyBvEAAYASAAEgIcP_D_BwE) (26 pp, sha256 `9efb3582146c983a`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/tlv61047ddcr-datasheet.pdf)