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Contents

Pinout
Key specifications
CAD (KiCad official)
Provenance

README

markdown

SG3525S

IDCHIP · DC-DC Converters · DIP-16

SG3525S from IDCHIP, in a DIP-16. 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	Inv. Input	input	Inverting input of the error amplifier, with a common-mode range of +1.5 V to +5.2 V that includes the 5.1 V reference.
2	Noninv. Input	input	Noninverting input of the error amplifier, with a common-mode range of +1.5 V to +5.2 V that includes the 5.1 V reference.
3	Sync	bidirectional	Oscillator synchronization pin that allows master-slave operation or synchronization to an external clock, with a sync threshold of 1.2 to 2.8 V.
4	OSC. Output	output	Oscillator clock output, typically 3.5 V high with a 0.5 µs pulse width.
5	CT	passive	Oscillator timing capacitor connection, recommended range 0.001 to 0.2 µF.
6	RT	passive	Oscillator timing resistor connection to ground, recommended range 2.0 to 150 kΩ.
7	Discharge	passive	Oscillator discharge pin where a resistor RD (0 to 500 Ω) to CT sets the dead time.
8	Soft-Start	passive	Soft-start capacitor pin with a 50 µA (25 to 80 µA) pull-up current source, which is discharged when shutdown is asserted or Vcc is under-voltage.
9	Compensation	bidirectional	Error amplifier output for loop compensation, which has a pull-up current source so a pull-down of 100 µA can shut off the outputs.
10	Shutdown	input	Shutdown input that, when high, immediately acts on the PWM latch and discharges the soft-start capacitor at 100 µA; it must not be left floating.
11	Output A	output	Totem-pole output A that sinks and sources up to ±100 mA continuous (±400 mA peak).
12	Ground	power_in	Ground reference for the device.
13	VC	power_in	Collector supply for the output stage, recommended 4.5 to 35 V (absolute maximum +40 V).
14	Output B	output	Totem-pole output B that sinks and sources up to ±100 mA continuous (±400 mA peak).
15	VCC	power_in	Supply voltage input, recommended 8.0 to 35 V (absolute maximum +40 V).
16	Vref	power_out	Reference output of 5.1 V ±1.0% (5.00 to 5.20 V), with load current of 0 to 20 mA and short-circuit current typically 80 mA.

Key specifications

Parameter	Value
Manufacturer	IDCHIP
Package	DIP-16
Category	Power Management (PMIC)
Pins	16

CAD (KiCad official)

Symbol: SG3525S
Footprint: Package_DIP:DIP-16_W7.62mm
3D model: DIP-16 (KiCad packages3D, STEP)
3D model files: sg3525s-etched.step / sg3525s-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sg3525s.step / sg3525s.glb are the bare package body.

Provenance

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

Datasheet: IDCHIP datasheet (7 pp, sha256 05503e475673435d, retrieved 2026-10-13, 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