# LT1615ES5#TRPBF

**Analog Devices** · DC-DC Converters · TSOT-23-5

LT1615ES5#TRPBF from Analog Devices, 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 | SW | output | Switch pin, the collector of the internal NPN power switch, with the metal trace area kept minimal to reduce EMI; the SW voltage absolute maximum is 36V. |
| 2 | GND | power_in | Ground pin that must be tied directly to the local ground plane. |
| 3 | FB | input | Feedback pin that sets the output voltage through the external R1 and R2 divider (R1/R2 = VOUT/1.23V − 1), with a maximum of 1mA current into the pin. |
| 4 | SHDN | input | Shutdown pin that must be tied to 0.9V or higher to enable the device and below 0.25V to turn it off, with a 15V absolute maximum rating. |
| 5 | VIN | power_in | Input supply pin that must be bypassed with a capacitor as close to the device as possible, with a 15V absolute maximum rating and a minimum input of 1.2V for LT1615 (1.0V for LT1615-1). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| 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 |
|---|---|---|---|---|---|---|---|
| FB Comparator Trip Point |  | 1.205 | 1.23 | 1.255 | V | ● denotes full operating temperature range | 2 |
| Switch Current Limit (LT1615) |  | 300 | 350 | 400 | mA |  | 2 |
| Switch VCESAT (LT1615) | VCESAT |  | 250 | 350 | mV | ISW = 300mA | 2 |
| Quiescent Current | IQ |  | 20 | 30 | µA | Not switching | 2 |
| Output Voltage Line Regulation |  |  | 0.05 | 0.1 | %/V | 1.2V < VIN < 12V | 2 |
| FB Pin Bias Current | IFB |  | 30 | 80 | nA | VFB = 1.23V; ● denotes full operating temperature range | 2 |
| SHDN Pin Current | ISHDN |  | 2 | 3 | µA | VSHDN = 1.2V | 2 |
| SHDN Pin Current | ISHDN |  | 8 | 12 | µA | VSHDN = 5V | 2 |
| Switch Leakage Current |  |  | 0.01 | 5 | µA | Switch off, VSW = 5V | 2 |
| Minimum Input Voltage (LT1615) | VIN | 1.2 |  |  | V |  | 2 |
| SHDN Input Voltage High | VSHDN | 0.9 |  |  | V |  | 2 |
| SHDN Input Voltage Low | VSHDN |  |  | 0.25 | V |  | 2 |
| Quiescent Current in Shutdown | IQ |  |  | 1 | µA | VSHDN = 0V | 2 |
| FB Comparator Hysteresis |  |  | 8 |  | mV |  | 2 |
| Switch Off Time | tOFF |  | 400 |  | ns | VFB > 1V | 2 |
| Switch Off Time | tOFF |  | 1.5 |  | µs | VFB < 0.6V | 2 |
| VIN Voltage (absolute maximum) | VIN |  |  | 15 | V |  | 2 |
| SHDN Voltage (absolute maximum) | SHDN |  |  | 15 | V |  | 2 |
| SW Voltage (absolute maximum) | SW |  |  | 36 | V |  | 2 |
| Current into FB Pin (absolute maximum) | IFB |  |  | 1 | mA |  | 2 |
| Junction Temperature (absolute maximum) | TJ |  |  | 125 | °C |  | 2 |
| Storage Temperature Range | TSTG | -65 |  | 150 | °C |  | 2 |
| Lead Temperature (Soldering) |  |  |  | 300 | °C | Soldering, 10 sec | 2 |
| Operating Temperature Range (E grade, guaranteed) | TA | 0 |  | 70 | °C | LT1615E guaranteed performance specification range (Note 2) | 2 |
| Operating Temperature Range (assured by design) | TA | -40 |  | 85 | °C | Assured by design, characterization and correlation, not tested (Note 2) | 2 |
| Thermal Resistance, Junction-to-Ambient | θJA |  | 256 |  | °C/W | Note 2 (value printed next to TJMAX = 125°C) | 2 |

## CAD (KiCad official)

- Symbol: `LT1615ES5#TRPBF`
- Footprint: `Package_TO_SOT_SMD:TSOT-23-5`
- 3D model: TSOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `lt1615es5-trpbf-etched.step` / `lt1615es5-trpbf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lt1615es5-trpbf.step` / `lt1615es5-trpbf.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Analog Devices datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588913196069761024) (8 pp, sha256 `226c76f8607744d2`, 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/lt1615es5-trpbf-datasheet.pdf)