component
ISL80103IRAJZ-TK
Public Made by Adomby adom
Intersil(Renesas Electronics) Linear Voltage Regulators (LDO), DFN-10(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Contents
README
markdownISL80103IRAJZ-TK
Intersil(Renesas Electronics) · Linear Voltage Regulators (LDO) · DFN-10(3x3)
ISL80103IRAJZ-TK from Intersil(Renesas Electronics), in a DFN-10(3x3). 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 | VOUT | power_out | Output voltage pin, which can be programmed from 0.8V to 5.5V. |
| 2 | VOUT | power_out | Output voltage pin, which can be programmed from 0.8V to 5.5V. |
| 3 | ADJ | input | Feedback pin for externally setting VOUT through a resistor divider, with an internal reference of 500mV (491mV to 509mV). |
| 4 | PG | output | Open-drain power-good output where logic low means VOUT is not in regulation; it must be grounded if not used and can sink up to 10mA. |
| 5 | GND | power_in | Ground pin. |
| 6 | SS | passive | An external capacitor on this pin adjusts inrush current; leave the pin open if not used. |
| 7 | ENABLE | input | VIN-independent chip enable that is TTL and CMOS compatible, must not be left floating, and must be tied to VIN if not used. |
| 8 | DNC | unconnected | Do not connect this pin to ground or supply; leave it floating. |
| 9 | VIN | power_in | Input supply pin operating from 2.2V to 6V. |
| 10 | VIN | power_in | Input supply pin operating from 2.2V to 6V. |
| 11 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Intersil(Renesas Electronics) |
| Package | DFN-10(3x3) |
| Category | Power Management ICs |
| Pins | 11 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| DC Output Voltage Accuracy | VOUT | -1.8 | 1.8 | % | 2.2V < VIN < 6V; 0A < ILOAD < 3A | 4 | |
| DC Output Voltage Accuracy (full load) | VOUT | -1.8 | -1.8 | % | 2.9V < VIN < 6V; 0A < ILOAD < full load | 4 | |
| Feedback Pin Voltage | VADJ | 491 | 500 | 509 | mV | 0A < ILOAD < full load | 4 |
| DC Input Line Regulation | -0.4 | 0.1 | 0.4 | % | 2.2V < VIN < 3.6V, VOUT = 1.8V | 4 | |
| DC Input Line Regulation | -0.8 | 0.1 | 0.8 | % | 2.9V < VIN < 6V, VOUT = 2.5V | 4 | |
| DC Output Load Regulation | -0.8 | -0.2 | 0.8 | % | ISL80103, 0A < ILOAD < 3A, 2.9V < VIN < 6V; VOUT = 2.5V | 4 | |
| Ground Pin Current | IQ | 7.5 | 9 | mA | ILOAD = 0A, VOUT + 0.4V < VIN < 6V, VOUT = 2.5V | 4 | |
| Ground Pin Current | IQ | 8.5 | 12 | mA | ILOAD = 3A, VOUT + 0.4V < VIN < 6V, VOUT = 2.5V | 4 | |
| Ground Pin Current in Shutdown | ISHDN | 3.3 | 16 | µA | EN = 0V, VIN = 6V | 4 | |
| Feedback Input Current | 0.01 | 1 | µA | VADJ = 0.5V | 4 | ||
| Dropout Voltage (ISL80103) | VDO | 120 | 185 | mV | ILOAD = 3A, VOUT = 2.5V | 5 | |
| Dropout Voltage (ISL80103) | VDO | 120 | 244 | mV | ILOAD = 3A, VOUT = 5.5V | 5 | |
| Turn-On Threshold | VEN(HIGH) | 0.616 | 0.8 | 0.95 | V | 2.2V < VIN < 6V | 5 |
| Turn-Off Threshold | VEN(LOW) | 0.463 | 0.6 | V | 2.2V < VIN < 6V | 5 | |
| Soft-Start Charge Current | ICHG | -7 | -4.5 | -2 | µA | 5 | |
| VOUT PG Flag Threshold | 75 | 84 | 92 | %VOUT | 5 | ||
| PG Flag Low Voltage | 47 | 100 | mV | ISINK = 500µA | 5 | ||
| PG Flag Leakage Current | 0.05 | 1 | µA | VIN = 6V, PG = 6V | 5 | ||
| Recommended Junction Temperature Range | TJ | -40 | 125 | °C | 4 | ||
| VIN Relative to GND | VIN | 2.2 | 6 | V | 4 | ||
| VOUT Range | VOUT | 800 | 5.5 | mV / V | 4 | ||
| PG, ENABLE, ADJ, SS Relative to GND | 0 | 6 | V | 4 | |||
| PG Sink Current | 10 | mA | 4 | ||||
| VIN Relative to GND | VIN | -0.3 | 6.5 | V | 4 | ||
| VOUT Relative to GND | VOUT | -0.3 | 6.5 | V | 4 | ||
| PG, ENABLE, ADJ, SS Relative to GND | -0.3 | 6.5 | V | 4 | |||
| Maximum Junction Temperature (Plastic Package) | TJ | 150 | °C | 4 | |||
| Storage Temperature Range | TSTG | -65 | 150 | °C | 4 | ||
| DC Output Voltage Accuracy (ILOAD = 0A) | VOUT | 0.5 | % | 2.2V < VIN < 6V; ILOAD = 0A | 4 | ||
| Ground Pin Current in Shutdown | ISHDN | 0.4 | µA | EN = 0V, VIN = 5V | 4 | ||
| Output Short-Circuit Current (3A Version) | ISC | 5 | A | ISL80103, VOUT = 0V | 5 | ||
| Thermal Shutdown Temperature | TSD | 160 | °C | 5 | |||
| Thermal Shutdown Hysteresis | TSDn | 15 | °C | 5 | |||
| Input Supply Ripple Rejection | PSRR | 55 | dB | f = 1kHz, ILOAD = 1A; VIN = 2.2V | 5 | ||
| Input Supply Ripple Rejection | PSRR | 62 | dB | f = 120Hz, ILOAD = 1A; VIN = 2.2V | 5 | ||
| Output Noise Voltage | 49 | µVRMS | VIN = 2.2V, VOUT = 1.8V, ILOAD = 3A, BW = 100Hz < f < 100kHz | 5 | |||
| Hysteresis | VEN(HYS) | 135 | mV | 2.2V < VIN < 6V | 5 | ||
| Enable Pin Turn-On Delay | tEN | 150 | µs | COUT = 10µF, ILOAD = 1A | 5 | ||
| Enable Pin Leakage Current | 1 | µA | VIN = 6V, EN = 3V | 5 | |||
| Reset Pull-Down Resistance | RPD | 323 | Ω | 5 | |||
| VOUT PG Flag Hysteresis | 4 | % | 5 | ||||
| Thermal Resistance Junction-to-Ambient | θJA | 45 | °C/W | 10 Ld 3x3 DFN package (Notes 5, 6) | 4 | ||
| Thermal Resistance Junction-to-Case | θJC | 4 | °C/W | 10 Ld 3x3 DFN package (Notes 5, 6) | 4 | ||
| Thermal Resistance Junction-to-Board at Pin 3 | θJB | 14.7 | °C/W | Note 7 | 4 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | 9, 10 VIN Input supply pin EPAD EPAD must be connected to a copper plane with as | 2 |
CAD (KiCad official)
- Symbol:
ISL80103IRAJZ-TK - Footprint:
Package_DFN_QFN:DFN-10-1EP_3x3mm_P0.5mm_EP1.55x2.48mm - 3D model: DFN-10(3x3) (KiCad packages3D, STEP)
- 3D model files:
isl80103irajz-tk-etched.step/isl80103irajz-tk-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);isl80103irajz-tk.step/isl80103irajz-tk.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Intersil(Renesas Electronics) datasheet (17 pp, sha256
43ae7eb0442be727, retrieved 2026-11-05, tier: lcsc) - 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).