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TL1963A-15KTTR
Public Made by Adomby adom
Texas Instruments 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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tl1963a-15kttr: specified limits as data (metadata.characteristics, 57 rows from the datasheet)
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TL1963A-15KTTR
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-263-5
TL1963A-15KTTR from Texas Instruments, 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 | SHDN | input | Enable input: driving it high (VIH min 2 V, up to 20 V) enables the regulator and driving it low (VIL max 0.25 V) disables it, and it must be tied to VIN if shutdown control is not used. |
| 2 | IN | power_in | Input supply pin, specified for 2.4 V to 20 V on the new-chip version, with an absolute maximum range of -0.3 V to 20.2 V and a recommended input capacitor of 1 µF. |
| 3 | GND | power_in | Ground pin, which the datasheet states must be connected to the exposed thermal pad and PCB ground plane for rated thermal performance. |
| 4 | OUT | power_out | Regulator output that requires a capacitor of at least 10 µF with ESR of 3 Ω or less to x stabilize operation, with an absolute maximum output voltage of -0.3 V to 20 V on the DCQ and KTT new-chip versions. |
| 5 | SENSE/ADJ | input | On the fixed-voltage TL1963A-xx versions this pin is the SENSE error-amplifier input and must be connected to OUT for proper operation, while on the adjustable version it is the ADJ feedback pin that must connect to the output through a resistor divider, with an absolute maximum of -0.3 V to 7 V on the new chip. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| 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 |
|---|---|---|---|---|---|---|---|
| Input voltage, new die (recommended) | VIN | 2.4 | 20 | V | 5 | ||
| Input voltage, old die (recommended) | VIN | 20 | V | Old die; minimum printed as VOUT + VDO | 5 | ||
| SHDN high-level input voltage | VIH | 2 | 20 | V | 5 | ||
| SHDN low-level input voltage | VIL | 0.25 | V | 5 | |||
| Output current | IOUT | 0 | 1.5 | A | 5 | ||
| Operating junction temperature | TJ | -40 | 125 | °C | 6 | ||
| Output capacitor | COUT | 10 | µF | 6 | |||
| Output capacitor ESR, new die | COUT ESR | 3 | Ω | 6 | |||
| Input voltage, old die (absolute max) | VIN | -20 | 20 | V | Old die | 5 | |
| Input voltage, new die (absolute max) | VIN | -0.3 | 20.2 | V | New die | 5 | |
| Output voltage, old die (absolute max) | VOUT | -20 | 20 | V | Old die | 5 | |
| Output voltage, new die DCQ and KTT (absolute max) | VOUT | -0.3 | 20 | V | New die, DCQ and KTT packages | 5 | |
| Input-output differential, old die (absolute max) | -20 | 20 | V | Old die | 5 | ||
| Input-output differential, new die (absolute max) | -7 | 20 | V | New die | 5 | ||
| Sense voltage, old die (absolute max) | -20 | 20 | V | Old die | 5 | ||
| Sense voltage, new die (absolute max) | -0.3 | 7 | V | New die | 5 | ||
| SHDN voltage, old die (absolute max) | -20 | 20 | V | Old die | 5 | ||
| SHDN voltage, new die (absolute max) | -0.3 | 20 | V | New die | 5 | ||
| Maximum junction temperature, old die (absolute max) | TJMAX | 125 | °C | Old die | 5 | ||
| Operating junction temperature, new die (absolute max) | TJ | -40 | 150 | °C | New die | 5 | |
| Storage temperature | Tstg | -65 | 150 | °C | 5 | ||
| VIN minimum input voltage, old die (ILOAD 1.5 A) | 2.1 | 2.5 | V | ILOAD = 1.5A, TJ = -40°C 至 125°C | 6 | ||
| VIN minimum input voltage, new die (ILOAD 1.5 A) | 2.4 | V | ILOAD = 1.5A, TJ = -40°C 至 125°C | 6 | |||
| UVLO rising threshold, new die | VUVLO (RISING) | 2 | 2.2 | 2.3 | V | VIN rising, IOUT = 10mA, TJ = -40°C 至 125°C | 6 |
| UVLO falling threshold, new die | VUVLO (FALLING) | 1.9 | 2.05 | 2.15 | V | VIN falling, IOUT = 10mA, TJ = -40°C 至 125°C | 6 |
| Dropout voltage | VDO | 0.0015 | 0.06 | V | ILOAD = 1mA, TJ = 25°C | 8 | |
| Dropout voltage | VDO | 0.1 | V | ILOAD = 1mA, TJ = -40°C 至 125°C | 8 | ||
| Dropout voltage | VDO | 0.025 | 0.17 | V | ILOAD = 100mA, TJ = 25°C | 8 | |
| Dropout voltage | VDO | 0.22 | V | ILOAD = 100mA, TJ = -40°C 至 125°C | 8 | ||
| Dropout voltage | VDO | 0.12 | 0.27 | V | ILOAD = 500mA, TJ = 25°C | 8 | |
| Dropout voltage | VDO | 0.35 | V | ILOAD = 500mA, TJ = -40°C 至 125°C | 8 | ||
| Dropout voltage | VDO | 0.34 | 0.45 | V | ILOAD = 1.5A, TJ = 25°C | 8 | |
| Dropout voltage | VDO | 0.55 | V | ILOAD = 1.5A, TJ = -40°C 至 125°C | 8 | ||
| GND pin current, old die | IGND | 1 | 1.5 | mA | VIN = VOUT(NOM)+1, ILOAD = 0mA, TJ = -40°C 至 125°C | 8 | |
| GND pin current, old die | IGND | 1.1 | 1.6 | mA | VIN = VOUT(NOM)+1, ILOAD = 1mA | 8 | |
| GND pin current, old die | IGND | 3.8 | 5.5 | mA | VIN = VOUT(NOM)+1, ILOAD = 100mA | 8 | |
| GND pin current, old die | IGND | 15 | 25 | mA | VIN = VOUT(NOM)+1, ILOAD = 500mA | 8 | |
| GND pin current, old die | IGND | 80 | 120 | mA | VIN = VOUT(NOM)+1, ILOAD = 1.5A | 8 | |
| GND pin current, new die | IGND | 1.2 | mA | VIN = VOUT(NOM)+1, ILOAD = 0A, TJ = -40°C 至 125°C | 8 | ||
| GND pin current, new die | IGND | 1.25 | mA | VIN = VOUT(NOM)+1, ILOAD = 1.5A | 8 | ||
| SHDN turn-on threshold (off to on) | 0.9 | 2 | V | VOUT = 关断至导通, TJ = -40°C 至 125°C | 8 | ||
| SHDN turn-off threshold (on to off) | 0.25 | 0.75 | V | VOUT = 导通至关断 | 8 | ||
| Current limit, old die | ILIMIT | 1.6 | A | VIN = VOUT(NOMINAL) + 1V, TJ = -40°C 至 125°C | 9 | ||
| Current limit, new die | ILIMIT | 1.6 | A | TJ = -40°C 至 125°C | 9 | ||
| Input reverse leakage current, old die | IIL | 1 | µA | VIN = -20V, VOUT = 0V, TJ = -40°C 至 125°C | 9 | ||
| Reverse output current, TL1963A-15 (old die) | IRO | 600 | 1200 | µA | VOUT = 1.5V, VIN < 1.5V, TJ = 25°C | 9 | |
| Steady-state reverse current, new die | IRC | 250 | µA | VOUT = 7V, VIN = 2.4V, TJ = -40°C 至 125°C | 9 | ||
| Reverse current detection threshold, new die | 25 | mV | VIN = 6V, VOUT rising; VOUT - VIN at detection, TJ = -40°C 至 125°C | 9 | |||
| Thermal shutdown rising temperature | TSD+ | 150 | 161 | °C | 9 | ||
| Thermal shutdown falling temperature | TSD- | 130 | 141 | °C | 9 | ||
| UVLO hysteresis, new die | VUVLO (HYST) | 150 | mV | TJ = -40°C 至 125°C | 6 | ||
| Junction-to-ambient thermal resistance (KTT) | RθJA | 32.9 | °C/W | KTT column, old-device label per datasheet | 6 | ||
| Junction-to-case (top) thermal resistance (KTT) | RθJC(top) | 37.6 | °C/W | KTT column, old-device label per datasheet | 6 | ||
| Junction-to-board thermal resistance (KTT) | RθJB | 18.9 | °C/W | KTT column, old-device label per datasheet | 6 | ||
| Junction-to-top characterization parameter (KTT) | ψJT | 5.7 | °C/W | KTT column, old-device label per datasheet | 6 | ||
| Junction-to-board characterization parameter (KTT) | ψJB | 17.3 | °C/W | KTT column, old-device label per datasheet | 6 | ||
| Junction-to-case (bottom) thermal resistance (KTT) | RθJC(bot) | 1 | °C/W | KTT column | 6 |
CAD (KiCad official)
- Symbol:
TL1963A-15KTTR - Footprint:
Package_TO_SOT_SMD:TO-263-5_TabPin6 - 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files:
tl1963a-15kttr-etched.step/tl1963a-15kttr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tl1963a-15kttr.step/tl1963a-15kttr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (59 pp, sha256
678bca278f2398fb, retrieved 2026-10-10, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).
# TL1963A-15KTTR
**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-263-5
TL1963A-15KTTR from Texas Instruments, 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 | SHDN | input | Enable input: driving it high (VIH min 2 V, up to 20 V) enables the regulator and driving it low (VIL max 0.25 V) disables it, and it must be tied to VIN if shutdown control is not used. |
| 2 | IN | power_in | Input supply pin, specified for 2.4 V to 20 V on the new-chip version, with an absolute maximum range of -0.3 V to 20.2 V and a recommended input capacitor of 1 µF. |
| 3 | GND | power_in | Ground pin, which the datasheet states must be connected to the exposed thermal pad and PCB ground plane for rated thermal performance. |
| 4 | OUT | power_out | Regulator output that requires a capacitor of at least 10 µF with ESR of 3 Ω or less to x stabilize operation, with an absolute maximum output voltage of -0.3 V to 20 V on the DCQ and KTT new-chip versions. |
| 5 | SENSE/ADJ | input | On the fixed-voltage TL1963A-xx versions this pin is the SENSE error-amplifier input and must be connected to OUT for proper operation, while on the adjustable version it is the ADJ feedback pin that must connect to the output through a resistor divider, with an absolute maximum of -0.3 V to 7 V on the new chip. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| 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 |
|---|---|---|---|---|---|---|---|
| Input voltage, new die (recommended) | VIN | 2.4 | | 20 | V | | 5 |
| Input voltage, old die (recommended) | VIN | | | 20 | V | Old die; minimum printed as VOUT + VDO | 5 |
| SHDN high-level input voltage | VIH | 2 | | 20 | V | | 5 |
| SHDN low-level input voltage | VIL | | | 0.25 | V | | 5 |
| Output current | IOUT | 0 | | 1.5 | A | | 5 |
| Operating junction temperature | TJ | -40 | | 125 | °C | | 6 |
| Output capacitor | COUT | 10 | | | µF | | 6 |
| Output capacitor ESR, new die | COUT ESR | | | 3 | Ω | | 6 |
| Input voltage, old die (absolute max) | VIN | -20 | | 20 | V | Old die | 5 |
| Input voltage, new die (absolute max) | VIN | -0.3 | | 20.2 | V | New die | 5 |
| Output voltage, old die (absolute max) | VOUT | -20 | | 20 | V | Old die | 5 |
| Output voltage, new die DCQ and KTT (absolute max) | VOUT | -0.3 | | 20 | V | New die, DCQ and KTT packages | 5 |
| Input-output differential, old die (absolute max) | | -20 | | 20 | V | Old die | 5 |
| Input-output differential, new die (absolute max) | | -7 | | 20 | V | New die | 5 |
| Sense voltage, old die (absolute max) | | -20 | | 20 | V | Old die | 5 |
| Sense voltage, new die (absolute max) | | -0.3 | | 7 | V | New die | 5 |
| SHDN voltage, old die (absolute max) | | -20 | | 20 | V | Old die | 5 |
| SHDN voltage, new die (absolute max) | | -0.3 | | 20 | V | New die | 5 |
| Maximum junction temperature, old die (absolute max) | TJMAX | | | 125 | °C | Old die | 5 |
| Operating junction temperature, new die (absolute max) | TJ | -40 | | 150 | °C | New die | 5 |
| Storage temperature | Tstg | -65 | | 150 | °C | | 5 |
| VIN minimum input voltage, old die (ILOAD 1.5 A) | | | 2.1 | 2.5 | V | ILOAD = 1.5A, TJ = -40°C 至 125°C | 6 |
| VIN minimum input voltage, new die (ILOAD 1.5 A) | | | | 2.4 | V | ILOAD = 1.5A, TJ = -40°C 至 125°C | 6 |
| UVLO rising threshold, new die | VUVLO (RISING) | 2 | 2.2 | 2.3 | V | VIN rising, IOUT = 10mA, TJ = -40°C 至 125°C | 6 |
| UVLO falling threshold, new die | VUVLO (FALLING) | 1.9 | 2.05 | 2.15 | V | VIN falling, IOUT = 10mA, TJ = -40°C 至 125°C | 6 |
| Dropout voltage | VDO | | 0.0015 | 0.06 | V | ILOAD = 1mA, TJ = 25°C | 8 |
| Dropout voltage | VDO | | | 0.1 | V | ILOAD = 1mA, TJ = -40°C 至 125°C | 8 |
| Dropout voltage | VDO | | 0.025 | 0.17 | V | ILOAD = 100mA, TJ = 25°C | 8 |
| Dropout voltage | VDO | | | 0.22 | V | ILOAD = 100mA, TJ = -40°C 至 125°C | 8 |
| Dropout voltage | VDO | | 0.12 | 0.27 | V | ILOAD = 500mA, TJ = 25°C | 8 |
| Dropout voltage | VDO | | | 0.35 | V | ILOAD = 500mA, TJ = -40°C 至 125°C | 8 |
| Dropout voltage | VDO | | 0.34 | 0.45 | V | ILOAD = 1.5A, TJ = 25°C | 8 |
| Dropout voltage | VDO | | | 0.55 | V | ILOAD = 1.5A, TJ = -40°C 至 125°C | 8 |
| GND pin current, old die | IGND | | 1 | 1.5 | mA | VIN = VOUT(NOM)+1, ILOAD = 0mA, TJ = -40°C 至 125°C | 8 |
| GND pin current, old die | IGND | | 1.1 | 1.6 | mA | VIN = VOUT(NOM)+1, ILOAD = 1mA | 8 |
| GND pin current, old die | IGND | | 3.8 | 5.5 | mA | VIN = VOUT(NOM)+1, ILOAD = 100mA | 8 |
| GND pin current, old die | IGND | | 15 | 25 | mA | VIN = VOUT(NOM)+1, ILOAD = 500mA | 8 |
| GND pin current, old die | IGND | | 80 | 120 | mA | VIN = VOUT(NOM)+1, ILOAD = 1.5A | 8 |
| GND pin current, new die | IGND | | | 1.2 | mA | VIN = VOUT(NOM)+1, ILOAD = 0A, TJ = -40°C 至 125°C | 8 |
| GND pin current, new die | IGND | | | 1.25 | mA | VIN = VOUT(NOM)+1, ILOAD = 1.5A | 8 |
| SHDN turn-on threshold (off to on) | | 0.9 | | 2 | V | VOUT = 关断至导通, TJ = -40°C 至 125°C | 8 |
| SHDN turn-off threshold (on to off) | | 0.25 | | 0.75 | V | VOUT = 导通至关断 | 8 |
| Current limit, old die | ILIMIT | 1.6 | | | A | VIN = VOUT(NOMINAL) + 1V, TJ = -40°C 至 125°C | 9 |
| Current limit, new die | ILIMIT | 1.6 | | | A | TJ = -40°C 至 125°C | 9 |
| Input reverse leakage current, old die | IIL | | | 1 | µA | VIN = -20V, VOUT = 0V, TJ = -40°C 至 125°C | 9 |
| Reverse output current, TL1963A-15 (old die) | IRO | | 600 | 1200 | µA | VOUT = 1.5V, VIN < 1.5V, TJ = 25°C | 9 |
| Steady-state reverse current, new die | IRC | | | 250 | µA | VOUT = 7V, VIN = 2.4V, TJ = -40°C 至 125°C | 9 |
| Reverse current detection threshold, new die | | | | 25 | mV | VIN = 6V, VOUT rising; VOUT - VIN at detection, TJ = -40°C 至 125°C | 9 |
| Thermal shutdown rising temperature | TSD+ | 150 | 161 | | °C | | 9 |
| Thermal shutdown falling temperature | TSD- | 130 | 141 | | °C | | 9 |
| UVLO hysteresis, new die | VUVLO (HYST) | | 150 | | mV | TJ = -40°C 至 125°C | 6 |
| Junction-to-ambient thermal resistance (KTT) | RθJA | | 32.9 | | °C/W | KTT column, old-device label per datasheet | 6 |
| Junction-to-case (top) thermal resistance (KTT) | RθJC(top) | | 37.6 | | °C/W | KTT column, old-device label per datasheet | 6 |
| Junction-to-board thermal resistance (KTT) | RθJB | | 18.9 | | °C/W | KTT column, old-device label per datasheet | 6 |
| Junction-to-top characterization parameter (KTT) | ψJT | | 5.7 | | °C/W | KTT column, old-device label per datasheet | 6 |
| Junction-to-board characterization parameter (KTT) | ψJB | | 17.3 | | °C/W | KTT column, old-device label per datasheet | 6 |
| Junction-to-case (bottom) thermal resistance (KTT) | RθJC(bot) | | 1 | | °C/W | KTT column | 6 |
## CAD (KiCad official)
- Symbol: `TL1963A-15KTTR`
- Footprint: `Package_TO_SOT_SMD:TO-263-5_TabPin6`
- 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files: `tl1963a-15kttr-etched.step` / `tl1963a-15kttr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tl1963a-15kttr.step` / `tl1963a-15kttr.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/cn/lit/gpn/tl1963a) (59 pp, sha256 `678bca278f2398fb`, retrieved 2026-10-10, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/tl1963a-15kttr-datasheet.pdf)