component
LP3965S-ADJ
Public Made by Adomby adom
HGSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-263-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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LP3965S-ADJ
HGSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-263-5
LP3965S-ADJ from HGSEMI, in a TO-263-5. 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 | SD | input | Shutdown control input: pulling it low (VSD ≤ 0.2V) puts the regulator in shutdown with ground pin current of 25µA max (15µA typ), and SD must be pulled high through a 10kΩ resistor in the typical application circuits. |
| 2 | VIN | power_in | Input supply pin with a 2.5V to 7.0V operating range and a 7.5V maximum survival input voltage. |
| 3 | GND | power_in | Ground pin; ground pin current is typically 5mA at 1.5A load current. |
| 4 | VOUT | power_out | Regulated output pin that supplies up to 1.5A DC with output survival voltage of −0.3V to +7.5V. |
| 5 | SENSE/ADJ | passive | Remote sense pin, or output adjust pin on the ADJ version where the adjust pin voltage is 1.216V typical (1.198V to 1.234V min to max at the stated conditions); the maximum voltage on the SENSE pin is VOUT+0.3V. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | TO-263-5 |
| 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 |
|---|---|---|---|---|---|---|---|
| Output Voltage Tolerance (TJ = 25C) | VO | -1.5 | 0 | 1.5 | % | TJ = 25C; 10 mA <= IL <= 1.5A; VOUT+1 <= VIN <= 7.0V | 7 |
| Output Voltage Tolerance (full operating temperature range) | VO | -3 | 3 | % | 10 mA <= IL <= 1.5A; VOUT+1 <= VIN <= 7.0V | 7 | |
| Adjust Pin Voltage (TJ = 25C) | VADJ | 1.198 | 1.216 | 1.234 | V | 10 mA <= IL <= 1.5A; VOUT+1.5V <= VIN <= 7.0V | 7 |
| Adjust Pin Voltage (full operating temperature range) | VADJ | 1.18 | 1.253 | V | 10 mA <= IL <= 1.5A; VOUT+1.5V <= VIN <= 7.0V | 7 | |
| Output Voltage Line Regulation | ∆VOL | 0.02 | 0.06 | % | VOUT+1V<VIN<7.0V | 7 | |
| Output Voltage Load Regulation | ∆VO/∆IOUT | 0.04 | 0.09 | % | 10 mA < IL < 1.5 A | 7 | |
| Dropout Voltage (TJ = 25C) | VIN - VOUT | 38 | 45 | mV | IL = 150 mA | 7 | |
| Dropout Voltage (full operating temperature range) | VIN - VOUT | 55 | mV | IL = 150 mA | 7 | ||
| Dropout Voltage (TJ = 25C) | VIN - VOUT | 380 | 450 | mV | IL = 1.5 A | 7 | |
| Dropout Voltage (full operating temperature range) | VIN - VOUT | 550 | mV | IL = 1.5 A | 7 | ||
| Ground Pin Current in Normal Operation (TJ = 25C) | IGND | 4 | 9 | mA | IL = 150 mA | 7 | |
| Ground Pin Current in Normal Operation (full operating temperature range) | IGND | 10 | mA | IL = 150 mA | 7 | ||
| Ground Pin Current in Normal Operation (TJ = 25C) | IGND | 5 | 14 | mA | IL = 1.5 A | 7 | |
| Ground Pin Current in Normal Operation (full operating temperature range) | IGND | 15 | mA | IL = 1.5 A | 7 | ||
| Ground Pin Current in Shutdown Mode (TJ = 25C) | IGND | 15 | 25 | µA | VSD <= 0.2V | 7 | |
| Ground Pin Current in Shutdown Mode (full operating temperature range) | IGND | 75 | µA | VSD <= 0.2V | 7 | ||
| Peak Output Current (TJ = 25C) | IO(PK) | 2 | 2.5 | A | 7 | ||
| Peak Output Current (full operating temperature range) | IO(PK) | 1.7 | A | 7 | |||
| Shutdown Threshold Output Low | VSDT | 0 | 0.2 | V | Output = Low | 7 | |
| Storage Temperature Range | -65 | 150 | °C | 6 | |||
| Lead Temperature (Soldering, 10 sec.) | 245 | °C | Soldering, 10 sec. | 6 | |||
| ESD Rating | 2 | kV | Human body model (Note 3) | 6 | |||
| Input Supply Voltage (Survival) | -0.3 | 7.5 | V | 6 | |||
| Output Voltage (Survival) | -0.3 | 7.5 | V | Note 6, Note 7 | 6 | ||
| Input Supply Voltage (Operating) | 2.5 | 7 | V | Note 12 | 6 | ||
| Shutdown Input Voltage (Operating) | -0.3 | 0.3 | V | 6 | |||
| Maximum Operating Current (DC) | 1.5 | A | 6 | ||||
| Operating Junction Temperature Range | TJ | -40 | 125 | °C | 6 | ||
| Thermal Resistance Junction-to-Ambient (TO263) | θjA | 60 | ˚C/W | TO263 package, with 0.5 in² 1 oz. copper area, no heat sink | 8 | ||
| Thermal Shutdown Threshold | Tsh(t) | 165 | ˚C | 7 | |||
| Thermal Shutdown Hysteresis | Tsh(h) | 10 | ˚C | 7 | |||
| Short Circuit Current | ISC | 4.5 | A | 7 | |||
| Turn-off Delay | TdOFF | 20 | µs | IL = 1.5 A | 8 | ||
| Turn-on Delay | TdON | 25 | µs | IL = 1.5 A | 8 | ||
| SD Input Current | ISD | 1 | nA | VSD = VIN | 8 | ||
| Ripple Rejection | PSRR | 60 | dB | VIN = VOUT + 1.5V, COUT = 100uF, VOUT = 3.3V | 8 | ||
| Ripple Rejection | PSRR | 40 | dB | VIN = VOUT + 0.3V, COUT = 100uF, VOUT = 3.3V | 8 | ||
| Output Noise Density | pn(l/f | 0.8 | µV | f = 120Hz | 8 | ||
| Output Noise Voltage | en | 150 | µV (rms) | BW = 10Hz, 100kHz | 8 | ||
| Output Noise Voltage | en | 100 | µV (rms) | BW = 300Hz, 300kHz | 8 |
CAD (KiCad official)
- Symbol:
LP3965S-ADJ - Footprint:
Package_TO_SOT_SMD:TO-263-5_TabPin6 - 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files:
lp3965s-adj-etched.step/lp3965s-adj-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lp3965s-adj.step/lp3965s-adj.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (14 pp, sha256
3e394216d4b8629b, retrieved 2026-10-27, 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).
# LP3965S-ADJ
**HGSEMI** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-263-5
LP3965S-ADJ from HGSEMI, in a TO-263-5. 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 | SD | input | Shutdown control input: pulling it low (VSD ≤ 0.2V) puts the regulator in shutdown with ground pin current of 25µA max (15µA typ), and SD must be pulled high through a 10kΩ resistor in the typical application circuits. |
| 2 | VIN | power_in | Input supply pin with a 2.5V to 7.0V operating range and a 7.5V maximum survival input voltage. |
| 3 | GND | power_in | Ground pin; ground pin current is typically 5mA at 1.5A load current. |
| 4 | VOUT | power_out | Regulated output pin that supplies up to 1.5A DC with output survival voltage of −0.3V to +7.5V. |
| 5 | SENSE/ADJ | passive | Remote sense pin, or output adjust pin on the ADJ version where the adjust pin voltage is 1.216V typical (1.198V to 1.234V min to max at the stated conditions); the maximum voltage on the SENSE pin is VOUT+0.3V. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | TO-263-5 |
| 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 |
|---|---|---|---|---|---|---|---|
| Output Voltage Tolerance (TJ = 25C) | VO | -1.5 | 0 | 1.5 | % | TJ = 25C; 10 mA <= IL <= 1.5A; VOUT+1 <= VIN <= 7.0V | 7 |
| Output Voltage Tolerance (full operating temperature range) | VO | -3 | | 3 | % | 10 mA <= IL <= 1.5A; VOUT+1 <= VIN <= 7.0V | 7 |
| Adjust Pin Voltage (TJ = 25C) | VADJ | 1.198 | 1.216 | 1.234 | V | 10 mA <= IL <= 1.5A; VOUT+1.5V <= VIN <= 7.0V | 7 |
| Adjust Pin Voltage (full operating temperature range) | VADJ | 1.18 | | 1.253 | V | 10 mA <= IL <= 1.5A; VOUT+1.5V <= VIN <= 7.0V | 7 |
| Output Voltage Line Regulation | ∆VOL | | 0.02 | 0.06 | % | VOUT+1V<VIN<7.0V | 7 |
| Output Voltage Load Regulation | ∆VO/∆IOUT | | 0.04 | 0.09 | % | 10 mA < IL < 1.5 A | 7 |
| Dropout Voltage (TJ = 25C) | VIN - VOUT | | 38 | 45 | mV | IL = 150 mA | 7 |
| Dropout Voltage (full operating temperature range) | VIN - VOUT | | | 55 | mV | IL = 150 mA | 7 |
| Dropout Voltage (TJ = 25C) | VIN - VOUT | | 380 | 450 | mV | IL = 1.5 A | 7 |
| Dropout Voltage (full operating temperature range) | VIN - VOUT | | | 550 | mV | IL = 1.5 A | 7 |
| Ground Pin Current in Normal Operation (TJ = 25C) | IGND | | 4 | 9 | mA | IL = 150 mA | 7 |
| Ground Pin Current in Normal Operation (full operating temperature range) | IGND | | | 10 | mA | IL = 150 mA | 7 |
| Ground Pin Current in Normal Operation (TJ = 25C) | IGND | | 5 | 14 | mA | IL = 1.5 A | 7 |
| Ground Pin Current in Normal Operation (full operating temperature range) | IGND | | | 15 | mA | IL = 1.5 A | 7 |
| Ground Pin Current in Shutdown Mode (TJ = 25C) | IGND | | 15 | 25 | µA | VSD <= 0.2V | 7 |
| Ground Pin Current in Shutdown Mode (full operating temperature range) | IGND | | | 75 | µA | VSD <= 0.2V | 7 |
| Peak Output Current (TJ = 25C) | IO(PK) | 2 | 2.5 | | A | | 7 |
| Peak Output Current (full operating temperature range) | IO(PK) | 1.7 | | | A | | 7 |
| Shutdown Threshold Output Low | VSDT | 0 | | 0.2 | V | Output = Low | 7 |
| Storage Temperature Range | | -65 | | 150 | °C | | 6 |
| Lead Temperature (Soldering, 10 sec.) | | | | 245 | °C | Soldering, 10 sec. | 6 |
| ESD Rating | | | | 2 | kV | Human body model (Note 3) | 6 |
| Input Supply Voltage (Survival) | | -0.3 | | 7.5 | V | | 6 |
| Output Voltage (Survival) | | -0.3 | | 7.5 | V | Note 6, Note 7 | 6 |
| Input Supply Voltage (Operating) | | 2.5 | | 7 | V | Note 12 | 6 |
| Shutdown Input Voltage (Operating) | | -0.3 | | 0.3 | V | | 6 |
| Maximum Operating Current (DC) | | | | 1.5 | A | | 6 |
| Operating Junction Temperature Range | TJ | -40 | | 125 | °C | | 6 |
| Thermal Resistance Junction-to-Ambient (TO263) | θjA | | 60 | | ˚C/W | TO263 package, with 0.5 in² 1 oz. copper area, no heat sink | 8 |
| Thermal Shutdown Threshold | Tsh(t) | | 165 | | ˚C | | 7 |
| Thermal Shutdown Hysteresis | Tsh(h) | | 10 | | ˚C | | 7 |
| Short Circuit Current | ISC | | 4.5 | | A | | 7 |
| Turn-off Delay | TdOFF | | 20 | | µs | IL = 1.5 A | 8 |
| Turn-on Delay | TdON | | 25 | | µs | IL = 1.5 A | 8 |
| SD Input Current | ISD | | 1 | | nA | VSD = VIN | 8 |
| Ripple Rejection | PSRR | | 60 | | dB | VIN = VOUT + 1.5V, COUT = 100uF, VOUT = 3.3V | 8 |
| Ripple Rejection | PSRR | | 40 | | dB | VIN = VOUT + 0.3V, COUT = 100uF, VOUT = 3.3V | 8 |
| Output Noise Density | pn(l/f | | 0.8 | | µV | f = 120Hz | 8 |
| Output Noise Voltage | en | | 150 | | µV (rms) | BW = 10Hz, 100kHz | 8 |
| Output Noise Voltage | en | | 100 | | µV (rms) | BW = 300Hz, 300kHz | 8 |
## CAD (KiCad official)
- Symbol: `LP3965S-ADJ`
- Footprint: `Package_TO_SOT_SMD:TO-263-5_TabPin6`
- 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files: `lp3965s-adj-etched.step` / `lp3965s-adj-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp3965s-adj.step` / `lp3965s-adj.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [HGSEMI datasheet](docs/lp3965s-adj-datasheet.pdf) (14 pp, sha256 `3e394216d4b8629b`, retrieved 2026-10-27, 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/lp3965s-adj-datasheet.pdf)