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REF3450QDGKRQ1

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Texas Instruments Voltage Reference, VSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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package.json Publish 0.1.0 · Ray 18d ago
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README.md ref3450qdgkrq1: specified limits as data (metadata.characteristics, 30 rows from the datasheet) · Ray 16d ago
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REF3450QDGKRQ1

Texas Instruments · Voltage Reference · VSSOP-8

REF3450QDGKRQ1 from Texas Instruments, in a VSSOP-8. 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 ENABLE input Enable input: a logic high of 1.6 V or higher runs the device and a logic low of 0.5 V or lower puts it in low-power shutdown, and EN must not be pulled above VIN.
2 GND_S power_in Ground sense connection for Kelvin sensing of the ground reference, which carries negligible current because the sense lines are high impedance.
3 GND_F power_in Ground force connection that carries the ground return current; tie it to GND_S when Kelvin connections are not needed.
4 NIC unconnected No internal connection; the pin is not connected inside the device.
5 NIC unconnected No internal connection; the pin is not connected inside the device.
6 OUT_F output Reference voltage output force connection, rated for the device output current of ±10 mA.
7 OUT_S output Reference voltage output sense connection used for Kelvin sensing of the output voltage at the load, which carries negligible current.
8 IN power_in Input supply voltage connection; it must be at least VOUT + VDO and is recommended up to 12 V, with an absolute maximum of 13 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VSSOP-8
Category Power Management (PMIC)
Pins 8

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 IN -0.3 13 V 5
Enable voltage EN -0.3 V 5
Output voltage VOUT -0.3 5.5 V 5
Output short-circuit current 20 mA 5
Operating temperature range TA -55 150 °C 5
Storage temperature range Tstg -65 170 °C 5
Input voltage (minimum is VOUT + VDO) IN 12 V 5
Enable voltage (maximum is IN) EN 0 V 5
Output current IL -10 10 mA 5
Operating temperature TA -40 25 125 °C 5
Output voltage accuracy -0.05 0.05 % TA = 25°C 6
Output voltage temperature coefficient 2.5 6 ppm/℃ 6
Line regulation ΔVO/ΔVIN 2 15 ppm/V VIN = VOUT + VDO to 12V 6
Load regulation, sourcing ΔVO/ΔIL 20 30 ppm/mA IL = 0mA to 10mA, VIN = VOUT + VDO 6
Load regulation, sinking (REF3450-Q1) ΔVO/ΔIL 70 140 ppm/mA IL = 0mA to -10mA, VIN = VOUT + VDO 6
Stable output capacitor range CL 0.1 10 µF 6
Supply input voltage (minimum is VOUT + VDO) VIN 12 V 7
Output current capability IL -10 10 mA VIN = VOUT + VDO to 12V 7
Quiescent current, operating mode IQ 72 95 µA Operating mode 7
Quiescent current, shutdown mode IQ 2.5 3 µA Shutdown mode 7
Dropout voltage VDO 50 100 mV IL = 0mA 7
Enable pin voltage, reference on VEN 1.6 V Reference in operating mode (EN = 1) 7
Enable pin voltage, reference off VEN 0.5 V Reference in shutdown mode (EN = 0) 7
Enable pin leakage current IEN 1 2 µA VEN = VIN = 12V 7
Short-circuit current ISC 18 22 mA TA = 25°C, VOUT = 0V 7
Junction-to-ambient thermal resistance (DGK 8-pin) RθJA 174.1 °C/W 5
Junction-to-case (top) thermal resistance (DGK 8-pin) RθJC(top) 61.3 °C/W 5
Junction-to-board thermal resistance (DGK 8-pin) RθJB 95.5 °C/W 5
Junction-to-top characterization parameter (DGK 8-pin) ΨJT 8.5 °C/W 5
Junction-to-board characterization parameter (DGK 8-pin) ΨJB 93.9 °C/W 5

CAD (KiCad official)

  • Symbol: REF3450QDGKRQ1
  • Footprint: Package_SO:VSSOP-8_2.3x2mm_P0.5mm
  • 3D model: VSSOP-8 (KiCad packages3D, STEP)
  • 3D model files: ref3450qdgkrq1-etched.step / ref3450qdgkrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ref3450qdgkrq1.step / ref3450qdgkrq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (40 pp, sha256 addb0b3508cd0c2e, retrieved 2026-10-12, 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