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ME2170ASG

MICRONE · LED Drivers · SOP-8

ME2170ASG from MICRONE, in a SOP-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 VSS power_in Ground terminal of the IC; the reference for the feedback divider, the current-sense resistor and the input and output capacitors, which should be connected at a single point.
2 CE input On/off enable input: driving it low (VSL max 0.4 V) stops the internal transistor and circuits to cut quiescent current, high (VSH min 0.8 V) enables operation, and it must not be left floating, so tie it to VDD if unused.
3 VSENSE input Current-sense connection: a sense resistor between VSENSE and VSS sets the output current limit, with the sense threshold at 107 mV typical (94 to 120 mV) and RSENSE = VSENSE / ILIM.
4 FB input Output voltage feedback input, compared with the internal 1.25 V (1.225 to 1.275 V) reference; the output is set by an external divider from VOUT to VSS, with RFB1 + RFB2 kept below 200 kΩ.
5 VDD power_in Supply input, rated 2.5 V to 6.0 V with undervoltage lockout below 2.3 V; a 0.1 µF bypass capacitor from VDD to VSS is recommended close to the IC.
6 VDD power_in Supply input, rated 2.5 V to 6.0 V (same net as pin 5), with undervoltage lockout below 2.3 V.
7 D(LX) output Drain of the internal enhancement N-channel power MOSFET (switch node); absolute maximum LX voltage is -0.3 V to VOUT + 0.3 V, and it connects to the inductor and Schottky diode.
8 D(LX) output Drain of the internal enhancement N-channel power MOSFET (switch node), tied to the same net as pin 7; absolute maximum LX voltage is -0.3 V to VOUT + 0.3 V.

Key specifications

Parameter Value
Manufacturer MICRONE
Package SOP-8
Category LED Drivers
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
Feedback voltage VFB 1.225 1.25 1.275 V 4
Input voltage VDD 2.5 6 V 4
Turn-on voltage VST1 2.5 V IOUT=1mA 4
Hold voltage VHLD 2.3 V 带载 1mA 时,逐渐减少输入电压 4
Quiescent current ISS1 48 60 μA VFB=1.5V 4
Consumption current ISS2 260 450 μA VFB=VFB(S)× 0.95 4
Shutdown current ISSS 1 nA VEN=0V 4
Feedback voltage temperature coefficient Ta VFB -50 50 ppm/℃ Ta=-40-150℃ 4
Oscillation frequency fosc 0.8 1 1.2 MHz 4
Current sense voltage VSENSE 94 107 120 mV 4
Enable turn-on threshold VSH 0.8 V 4
Enable turn-off threshold VSL 0.4 V 4
Undervoltage lockout UVLO 2 2.3 V VDD<2.3V 4
VDD pin voltage range VDD -0.3 6.5 V 4
LX pin voltage range LX -0.3 V upper limit printed as VOUT+0.3 V, not a number 4
CE pin voltage range VEN -0.3 V upper limit printed as Vin+0.3 V, not a number 4
Power dissipation (SOP8) Pd 850 mW SOP8 4
Operating temperature range TOpr -40 150 ℃ 4
Storage temperature range Tstg -40 150 ℃ 4
Input voltage for VOUT=12V Vin 3.1 V VOUT=12V, recommended Vin not below 3.1V 5
Output voltage setting range VOUT 20 V set by external divider, printed as <20V 7
Feedback divider total resistance RFB1+RFB2 200 kΩ printed as RFB1 + RFB2 < 200kΩ to limit noise pickup 7
Maximum duty cycle MaxDuty 78 % VFB=VFB(S)× 0.05 4
Soft-start time tss 2 mS 4

CAD (KiCad official)

  • Symbol: ME2170ASG
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: me2170asg-etched.step / me2170asg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); me2170asg.step / me2170asg.glb are the bare package body.

Provenance

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

  • Datasheet: MICRONE datasheet (12 pp, sha256 f48358e3786d9dac, retrieved 2026-10-19, 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