# ISL9111AEH50Z-T7A

**RENESAS** · DC-DC Converters · SOT-23-6

ISL9111AEH50Z-T7A from RENESAS, in a SOT-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 | SW | bidirectional | The SW pin is the switching node of the power converter and connects one terminal of the inductor, with the other terminal going to power input. |
| 2 | GND | power_in | GND is the system ground pin. |
| 3 | EN | input | EN is an active-high logic input that enables the device; when asserted low the device is completely disabled and current is blocked between SW and the output, and it must be tied either high or low. |
| 4 | FAULT | output | FAULT is a fault output that goes logic LOW under a number of fault conditions listed in Table 1 on page 10. |
| 5 | VOUT | power_out | VOUT is the device output pin, with a 5.0V fixed output for this variant and an output voltage range of up to 5.25V. |
| 6 | VIN | power_in | VIN is the device input supply pin, and the datasheet calls for a 4.7µF ceramic capacitor connected to power ground at this pin; recommended VIN is 0.8V to VOUT - 200mV. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | RENESAS |
| Package | SOT-23-6 |
| Category | Power Management ICs |
| 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 |
|---|---|---|---|---|---|---|---|
| Output Voltage Accuracy (ISL9111A: 3.0/3.3/5.0V) | VOUT | -100 |  | 100 | mV | VIN = 1.2V, ILOAD = 50mA | 6 |
| Load Regulation | ΔVOUT/VOUT | -1.5 |  | 1.5 | % | ILOAD = 0 to 100mA | 7 |
| Line Regulation |  | -1 |  | 1 | % | VIN = 0.8V to 1.6V, ILOAD = 1mA | 7 |
| Minimum Start-up Voltage (ISL9111A) | VMIN |  |  | 0.75 | V | VEN = VIN, No Load | 6 |
| Minimum Operating Voltage after Start-up (ISL9111A) | VOPT |  |  | 0.5 | V | VEN = VIN, No Load | 6 |
| Quiescent Current from VOUT | IQ1 |  | 20 | 45 | μA | No Load | 6 |
| Shutdown Current from VIN | ISD |  | 0.5 | 2 | μA | VEN = 0V, VIN = 1.2V, VO = 0 | 6 |
| Leakage Current at SW Pin |  |  |  | 1 | μA | VEN = 0V, VIN = 5V, VO = 0, TA = +25°C | 6 |
| N-Channel MOSFET ON-Resistance |  |  | 0.2 |  | Ω | VOUT = 5V | 6 |
| P-Channel MOSFET ON-Resistance |  |  | 0.35 |  | Ω | VOUT = 5V | 6 |
| N-Channel MOSFET Peak Current Limit | IPK | 0.8 | 1 | 1.2 | A |  | 6 |
| Maximum Duty Cycle | DMAX | 84 |  | 87.5 | % |  | 6 |
| PWM Switching Frequency | FOSC | 1 | 1.2 | 1.4 | MHz |  | 6 |
| Soft-Start-Up Time |  |  | 1 |  | ms |  | 6 |
| EN Logic High |  | 0.8 |  |  | V | 0.8*VIN | 6 |
| EN Logic Low |  |  |  | 0.2 | V | 0.2*VIN | 6 |
| FAULT Pin Leakage Current when High |  |  |  | 100 | nA | VFLT = VOUT | 6 |
| FAULT Pin Sink Current when Low |  |  |  | 10 | mA | VFLT = 0.5V | 6 |
| Thermal Shutdown | TSD |  | 150 |  | °C |  | 7 |
| Thermal Shutdown Hysteresis |  |  | 25 |  | °C |  | 7 |
| VIN input voltage range (recommended) | VIN | 0.8 |  |  | V | Upper limit VOUT - 200mV | 6 |
| Maximum DC Current from Input |  |  |  | 750 | mA |  | 6 |
| Ambient Temperature Range (recommended) | TA | -20 |  | 85 | °C |  | 6 |
| VIN, EN, FAULT, VOUT voltage (absolute maximum) |  | -0.3 |  | 6.5 | V |  | 6 |
| SW Voltage DC (absolute maximum) |  | -0.5 |  | 6.5 | V | DC | 6 |
| SW Voltage pulse (absolute maximum) |  | -0.5 |  | 8 | V | Pulse < 10ns | 6 |
| Latch Up |  |  |  | 100 | mA | Tested per JESD78; Class 2, Level A | 6 |
| Junction Temperature Range | TJ | -20 |  | 125 | °C |  | 6 |
| Storage Temperature Range |  | -65 |  | 150 | °C |  | 6 |
| Thermal Resistance Junction-to-Ambient, 6 Ld SOT-23 | θJA |  | 146 |  | °C/W | Note 5: component mounted on high effective thermal conductivity test board in free air | 6 |

## CAD (KiCad official)

- Symbol: `ISL9111AEH50Z-T7A`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `isl9111aeh50z-t7a-etched.step` / `isl9111aeh50z-t7a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `isl9111aeh50z-t7a.step` / `isl9111aeh50z-t7a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [RENESAS datasheet](docs/isl9111aeh50z-t7a-datasheet.pdf) (15 pp, sha256 `c27134c4ffe9d262`, retrieved 2026-10-30, 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/isl9111aeh50z-t7a-datasheet.pdf)