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RT9078N-08GJ5-MS

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MSKSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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RT9078N-08GJ5-MS

MSKSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

RT9078N-08GJ5-MS from MSKSEMI, in a SOT-23-5. 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 VIN power_in Power supply input, operating range 2V to 5.5V (absolute maximum -0.3V to 6V), with 1uF or larger input capacitor placed close to VIN and GND.
2 GND power_in Ground pin; input and output capacitor grounds must return to this pin with short, wide traces.
3 EN input Enable control input; pulling EN low enters shutdown mode (VIH 1.0V rising, VIL 0.4V falling, absolute maximum -0.3V to 6V).
4 SNS input Output voltage sense input used for the adjustable output (0.8V reference), with sense input current of 0.5uA max when SNS = VOUT.
5 VOUT power_out Regulated voltage output delivering up to 300mA, stable with 1uF to 22uF ceramic output capacitor placed close to VOUT and GND.

Key specifications

Parameter Value
Manufacturer MSKSEMI
Package SOT-23-5
Category Power Management (PMIC)
Pins 5

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 VIN 2 5.5 V 6
Output voltage accuracy -2 2 % ILOAD = 0.1mA 6
SNS input current ISNS 0.5 μA SNS = VOUT 6
Dropout voltage (VOUT ≥ 3V) VDROP_3V 0.18 V ILOAD = 300mA; VOUT ≥ 3V 6
Dropout voltage (VOUT = 2.8V) VDROP_2.8V 0.23 V ILOAD = 300mA; VOUT = 2.8V 6
Dropout voltage (VOUT = 2.5V) VDROP_2.5V 0.23 V ILOAD = 300mA; VOUT = 2.5V 6
Dropout voltage (VOUT = 1.8V) VDROP_1.8V 0.28 V ILOAD = 300mA; VOUT = 1.8V 6
Dropout voltage (VOUT = 1.5V) VDROP_1.5V 0.36 V ILOAD = 300mA; VOUT = 1.5V 6
Dropout voltage (VOUT = 1.2V) VDROP_1.2V 0.45 V ILOAD = 300mA; VOUT = 1.2V 6
Quiescent current IQ 2 μA ILOAD = 0mA 6
Shutdown current ISD 0.1 0.5 μA VEN = 0V, VOUT = 0V 6
EN threshold voltage, rising (logic high) VIH 1 V EN rising 6
EN threshold voltage, falling (logic low) VIL 0.4 V EN falling 6
EN input current IEN 10 100 nA VEN = 5V 6
Input voltage regulation ΔLINE 0.2 % ILOAD = 30mA, 1.5V ≤ VIN ≤ 5.5V or (VOUT + 0.2V) ≤ VIN ≤ 5.5V 6
Load voltage regulation ΔLOAD 0.2 % 10mA ≤ ILOAD ≤ 0.3A 6
Output current limit ILIM 300 mA VOUT = 0V 6
Recommended input voltage VIN 2 5.5 V 5
Recommended application junction temperature range -40 125 °C 5
Recommended application ambient temperature range -40 85 °C 5
VIN to GND -0.3 6 V 5
VOUT, EN to GND -0.3 6 V 5
VOUT to VIN -6 0.3 V 5
Lead soldering temperature 260 °C 10 sec, soldering 5
Junction temperature 150 °C 5
Storage temperature range -60 150 °C 5
ESD HBM 2 KV Human body model 5
ESD MM 200 V Machine model 5
ESD CDM 2 KV Charged device model 5
Thermal resistance, junction to ambient θJA 200 °C/W TA = 25°C, EVB board 5

CAD (KiCad official)

  • Symbol: RT9078N-08GJ5-MS
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: rt9078n-08gj5-ms-etched.step / rt9078n-08gj5-ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rt9078n-08gj5-ms.step / rt9078n-08gj5-ms.glb are the bare package body.

Provenance

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

  • Datasheet: MSKSEMI datasheet (11 pp, sha256 cf84e8989f187ef3, retrieved 2026-10-18, 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