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EG1503

Public Made by Adom

by adom

EG Micro AC-DC Controllers & Regulators, SSOP-24-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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EG1503

EG Micro · AC-DC Controllers & Regulators · SSOP-24-150mil

EG1503 from EG Micro, in a SSOP-24-150mil. 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 LED2 output Battery level indicator LED2 output.
2 LED1 output Battery level indicator LED1 output.
3 VREF power_out 2.5V reference output with an external 1uF capacitor, used as the internal ADC reference (max output current 1mA).
4 AD0 input ADC input.
5 TFB input ADC input connected to internal AD1 and AD5 inputs; can be used as temperature detection input in power bank applications.
6 OUTP output Short-circuit output enable control.
7 IAPO output Current signal amplifier output, with an external 0.1uF capacitor.
8 IFB1 input Current-sense feedback input of constant-current channel 1 in boost mode.
9 AGND power_in Analog ground.
10 IFB2 input Current-sense feedback input of constant-current channel 2 in boost mode.
11 SCL bidirectional I2C clock line, multiplexed with falling-edge wake-up from sleep.
12 SDA bidirectional I2C data line.
13 Icharge input Charge current sense feedback input in buck mode.
14 VBAT power_in Output voltage sense feedback input in buck mode.
15 COMP output Error amplifier output compensation pin.
16 PGND power_in Power ground.
17 NMOS output Gate drive output for the external low-side NMOS, drive current ±100mA.
18 LX bidirectional Switch node.
19 PMOS output Gate drive output for the external high-side PMOS, drive current ±100mA.
20 VCC power_in Chip supply pin, operating range 2.5V to 5.5V (abs max 6V).
21 BLED output High-power lighting LED output, drive capability 100mA.
22 LED5 output Battery level indicator LED5 with adjustable constant current.
23 LED4 output Battery level indicator LED4 output.
24 LED3 output Battery level indicator LED3 output.

Key specifications

Parameter Value
Manufacturer EG Micro
Package SSOP-24-150mil
Category Power Management ICs
Pins 24

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
VCC supply voltage (abs max) VCC 6 V TA=25°C 9
Input/output voltage (abs max) All 6 V TA=25°C 9
Junction temperature Tj -55 150 °C TA=25°C 9
Ambient temperature TA -45 85 °C 9
Storage temperature Tstr -65 150 °C 9
Soldering temperature TL 300 °C T=10S 9
Supply voltage Vcc 2.5 5 5.5 V TA=25°C, VCC=5V 9
Sleep mode current Iccs 5 uA 关闭内部所有电路模块 9
Standby current Iccq 0.48 2 mA 关闭功率 MOSFET 9
Operating quiescent current Icc 15 18 mA f=200KHz，PWM 工作同步续流开启 9
Reference voltage VREF 2.475 2.5 2.525 V VCC=5V 9
Line regulation ΔVREF 10 20 mV VCC=3V to 5.5V 9
Load regulation ΔVREF 20 50 mV IL=0 to 1mA 9
Max output current IO 1 mA VCC=3V to 5.5V 9
Oscillator frequency range Δf 42 500 KHz VCC=3 to 5V 9
Supply rejection Δf/ΔVCC 3 5 % VCC=3 to 5V; printed ± 9
Temperature drift Δf/ΔT 5 8 % printed ± 9
Minimum frequency fMIN 42 KHz 9
Maximum frequency fMAX 500 KHz 9
Input offset voltage VOS 2 10 mV VCC=5V 10
Input bias current Ib 1 10 uA 10
Input offset current IOS 1 uA 10
Open-loop gain AVOL 60 75 dB 10
Output low level VOL 0.2 0.5 V 10
Output high level VOH 3.8 4.7 V 10
Common-mode rejection ratio CMRR 60 75 dB 10
Power supply rejection ratio PSRR 50 60 dB 10
MOS driver output low I VOL I 0.1 0.4 V ISINK=20mA 10
MOS driver output low II VOL II 1 2 V ISINK=100mA 10
MOS driver output high I VCH I 4 4.5 V ISOURCE=20mA 10
MOS driver output high II VCH II 3.5 4 V ISOURCE=100mA 10
Rise time tR 100 500 nS CL=1nF，Tj=25℃ 10
Fall time tF 70 300 nS CL=1nF，Tj=25℃ 10

CAD (KiCad official)

  • Symbol: EG1503
  • Footprint: Package_SO:SSOP-24_5.3x8.2mm_P0.65mm
  • 3D model: SSOP-24-150mil (KiCad packages3D, STEP)
  • 3D model files: eg1503-etched.step / eg1503-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); eg1503.step / eg1503.glb are the bare package body.

Provenance

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

  • Datasheet: EG Micro datasheet (21 pp, sha256 14f6fac7774f8e34, retrieved 2026-10-23, 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-sonnet-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