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CBM1764DT-2.5-REEL

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Corebai Microelectronics Linear Voltage Regulators (LDO), TO-263-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CBM1764DT-2.5-REEL

Corebai Microelectronics · Linear Voltage Regulators (LDO) · TO-263-5

CBM1764DT-2.5-REEL from Corebai Microelectronics, 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 Active-low shutdown enable that powers the regulator down to micropower shutdown when pulled low, with a typical pin current of about 12uA that requires at least 20uA drive from an open-collector driver with pull-up.
2 IN power_in Supply input for the regulator with a stated input range of 2.7V to 20V, which needs a 1uF to 10uF bypass capacitor when located more than 6 inches from the bulk filter capacitor.
3 GND power_in Ground pin, which is also electrically connected to the TO-263 bottom tab heat-sink pad.
4 OUT power_out Regulated output that requires a minimum 10uF output capacitor to prevent oscillation, with larger capacitance reducing load-transient peak voltage.
5 SENSE input Output sense input for the fixed-voltage version that connects to the internal error amplifier inverting input, where tying it to OUT at the load gives the best regulation accuracy.
6 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Corebai Microelectronics
Package TO-263-5
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 (CBM1764-2.5), 25 C VOUT 2.462 2.5 2.538 V VIN=3V, ILOAD=1mA 2
Output voltage (CBM1764-2.5), full temperature range VOUT 2.412 2.5 2.575 V 3.5V < VIN < 20V, 1mA < ILOAD < 3A 2
Load regulation (CBM1764-2.5), 25 C 4 10 mV VIN = 3.5V, dILOAD = 1mA to 3A 3
Load regulation (CBM1764-2.5), full temperature range 30 mV VIN = 3.5V, dILOAD = 1mA to 3A 3
Line regulation (CBM1764-2.5), full temperature range 4 10 mV dVIN = 3V to 20V, ILOAD = 1mA 2
Minimum input voltage at 3A, full temperature range 2.3 2.7 V ILOAD = 3A 2
Dropout voltage at 1mA 0.02 0.05 0.1 V ILOAD = 1mA 3
Dropout voltage at 100mA 0.07 0.13 0.18 V ILOAD = 100mA 3
Dropout voltage at 500mA 0.14 0.2 0.27 V ILOAD = 500mA 3
Dropout voltage at 1.5A 0.25 0.33 0.4 V ILOAD = 1.5A 3
Dropout voltage at 3A 0.37 0.45 0.66 V ILOAD = 3A 3
Ground pin current at 0mA 1 1.5 mA ILOAD = 0mA 3
Ground pin current at 1mA 1.1 1.6 mA ILOAD = 1mA 3
Ground pin current at 100mA 3.1 5 mA ILOAD = 100mA 3
Ground pin current at 500mA 8 18 mA ILOAD = 500mA 3
Ground pin current at 1.5A 40 75 mA ILOAD = 1.5A 3
Ground pin current at 3A 57 200 mA ILOAD = 3A 3
Reverse output current (CBM1764-2.5) 900 1200 μA VOUT = 2.5V, VIN < 2.5V 4
Input reverse leakage current 1 mA VIN = -20V, VOUT = 0V, full temperature range 4
Shutdown pin current at VSHDN=0V 0.01 1 μA VSHDN = 0V 4
Shutdown pin current at VSHDN=20V 12 30 μA VSHDN = 20V 4
Shutdown quiescent current 0.1 1 μA VIN = 6V, VSHDN = 0V 4
Ripple rejection 55 63 dB VIN - VOUT = 1.5V (Avg), VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz, ILOAD = 1.5A 4
Current limit 5.2 A VIN = 7V, VOUT = 0V 4
Output voltage noise 40 μVRMS COUT = 10μF, ILOAD = 3A, BW = 10Hz to 100kHz 3
Input voltage operating range VIN 2.7 20 V 1
Maximum junction temperature TJ 125 ℃ 8
Junction-to-ambient thermal resistance, TO-263 23 ℃/W TO-263 package, junction to ambient 8

CAD (KiCad official)

  • Symbol: CBM1764DT-2.5-REEL
  • Footprint: Package_TO_SOT_SMD:TO-263-5_TabPin6
  • 3D model: TO-263-5 (KiCad packages3D, STEP)
  • 3D model files: cbm1764dt-2-5-reel-etched.step / cbm1764dt-2-5-reel-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cbm1764dt-2-5-reel.step / cbm1764dt-2-5-reel.glb are the bare package body.

Provenance

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

  • Datasheet: Corebai Microelectronics datasheet (9 pp, sha256 bb1f1a6a9812de71, retrieved 2026-10-27, 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