The ZSPM4011B is a DC/DC synchronous switching regulator with fully integrated power switches, internal compensation, and full fault protection. The 1MHz switching frequency enables using small filter components, resulting in reduced board space and reduced bill-of-materials costs. The ZSPM4011B utilizes current mode feedback in normal regulation PWM mode. When the regulator is disabled (EN is low), the device draws less than 10


  • Output voltage options depending on order code: 1.5V, 1.8V, 2.5V, 3.3V, or 5.0V with ±2% output tolerance or adjustable version output voltage range: 0.9V to 5.5V with ±1.5% reference
  • Wide input voltage range: 4.5V to 24V
  • 1MHz +/- 10% fixed switching frequency
  • 1A continuous output current
  • High efficiency – up to 95%
  • Current mode PWM control with PFM mode for improved light load efficiency
  • Voltage supervisor for VOUT reported at the PG pin
  • Input supply under voltage lockout
  • Soft start for controlled startup with no overshoot
  • Full protection for over-current, over-temperature, and VOUT over-voltage
  • Less than 10

Product Options

Orderable Part ID Part Status Pkg. Type Lead Count (#) Temp. Range Carrier Type Package Buy Sample
ZSPM4011BA1W50 Active VFQFPN 16 -40 to 125°C Reel Package Info

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ZSPM4011B Short-form Datasheet Short Form Datasheet PDF 173 KB
ZSPM4011B Datasheet Datasheet PDF 719 KB
User Guides & Manuals
IDT CAD Altium Libraries for AID Products Rev 20160819 Guide ZIP 1.20 MB
ZSPM4011B-12B-13B Evaluation Kit Description Manual PDF 363 KB
Application Notes & White Papers
ZSPM401x Application Note - Circuit Layout and Component Selection Application Note PDF 423 KB

Boards & Kits

Part Number Title Type Company
ZSPM4011BKIT Evaluation Kit for ZSPM4011B