component

OB2532MP

Public Made by Adom

by adom

OB On Bright Elec AC-DC Controllers And Regulators, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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OB2532MP

OB On Bright Elec · AC-DC Controllers And Regulators · SOT-23-6

OB2532MP from OB On Bright Elec, in a SOT-23-6. 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 GND power_in Ground reference pin for the controller.
2 GATE output Totem-pole gate drive output for the external power MOSFET, with VOH of 8 V (Io=20 mA), VOL of 1 V (Io=20 mA), and output clamp of 16 V.
3 CS input Current sense input connected to the MOSFET current sense resistor node, with over-current threshold Vth_oc of 880-940 mV and 50 kΩ input impedance.
4 INV input Voltage feedback input from the auxiliary winding through a resistor divider reflecting the output voltage, compared against the 2.0 V reference (Vref_EA 1.97-2.03 V), and also used for the cable drop compensation offset.
5 COMP input Loop compensation pin for CV stability, whose voltage sets the cable drop compensation current (I_COMP_MAX 37.5 uA at Comp=0V).
6 VDD power_in Power supply pin, supplied by the transformer auxiliary winding, with UVLO(ON) of 8.2-10.5 V, UVLO(OFF) of 13.5-16.0 V, VDD clamp of 27-30 V (IDD=10 mA), and OVP threshold of 26-29 V.

Key specifications

Parameter Value
Manufacturer OB On Bright Elec
Package SOT-23-6
Category Power Management (PMIC)
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
Standby Current IDD_ST 5 20 uA VDD=13V 5
Operation Current IDD_op 2 3 mA INV=2V, CS=0V, VDD=18V 5
VDD Under Voltage Lockout (ON) UVLO(ON) 8.2 9 10.5 V Enter VDD falling 5
VDD Under Voltage Lockout (OFF) UVLO(OFF) 13.5 14.8 16 V Exit VDD rising 5
Maximum VDD operation voltage VDD_clamp 27 28.5 30 V IDD=10mA 5
Over voltage protection threshold OVP 26 27.5 29 V Ramp VDD until gate shut down 5
Over current threshold Vth_oc 880 910 940 mV 5
IC Maximum frequency Freq_Max 55 60 65 KHz 5
Frequency shuffling range Δf/Freq -6 6 % 5
Reference voltage for EA Vref_EA 1.97 2 2.03 V 5
VDD Voltage VDD -0.3 V Upper limit is VDD_clamp (symbolic, not numeric) 2
VDD Zener Clamp Continuous Current 10 mA Continuous current 2
COMP Voltage COMP -0.3 7 V 2
CS Input Voltage CS -0.3 7 V 2
INV Input Voltage INV -0.3 7 V 2
Max Operating Junction Temperature TJ 150 °C 2
Storage Temperature Tstg -55 150 °C 2
Lead Temperature (Soldering) 260 °C Soldering, 10 secs 2
Package thermal resistance junction-to-ambient RθJA 200 ℃/W SOT23-6 2
LEB time TLEB 625 ns 5
OCP Propagation delay Td_oc 110 ns 5
Input Impedance ZSENSE_IN 50 Kohm 5
Soft start time T_ss 17 ms 5
System nominal switch frequency Freq_Nom 50 KHz 5
Startup frequency Freq_startup 14 KHz INV=0V, Comp=5V 5
DC gain of EA Gain 60 dB 5
Max. Cable compensation current I_COMP_MAX 37.5 uA INV=2V, Comp=0V 5
Output Low Level VOL 1 V Io=20mA 5
Output High Level VOH 8 V Io=20mA 5
Output Clamp Voltage Level V_clamp 16 V 5
Output Rising Time T_r 650 nS CL=0.5nF 5
Output Falling Time T_f 40 nS CL=0.5nF 5

CAD (KiCad official)

  • Symbol: OB2532MP
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: ob2532mp-etched.step / ob2532mp-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ob2532mp.step / ob2532mp.glb are the bare package body.

Provenance

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

  • Datasheet: OB On Bright Elec datasheet (10 pp, sha256 99777265e6c86538, retrieved 2026-10-17, tier: lcsc)
  • 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