The ZSPM4022-09 is a constant-frequency, synchronous DC/DC buck regulator featuring adaptive on-time control architecture. The ZSPM4022-09 operates over a 4.5V to 19V supply range (12V typical). It has an internal linear regulator that provides a regulated 5V to power the internal control circuitry. The ZSPM4022-09 operates at a constant 600kHz (typical) switching frequency in continuous-conduction mode and can be used to provide up to 9A of output current. The output voltage is adjustable from 5.5V down to 0.8V.

Under medium to heavy loads, the ZSPM4022-09 provides high efficiency and ultra-fast transient response via its rapid-control architecture. Under light load conditions, it maintains high efficiency and a superior transient response by transitioning to variable-frequency, discontinuous mode operation with its ultra-light-load architecture.

The ZSPM4022-09 offers a full suite of protection features to ensure protection of the IC during fault conditions. These include under-voltage lockout to ensure proper operation under power-sag conditions; thermal shutdown; internal soft-start to reduce inrush current; foldback current limiting; and "hiccup" mode short-circuit protection. The ZSPM4022-09 includes a power good (PG) output to allow simple sequencing.


  • Rapid-control architecture enables operation with a high input/output voltage ratio (e.g., VIN = 19V and VOUT = 0.8V) and small output capacitance
  • Adjustable output voltage from 0.8V to 5.5V
  • Universally compatible with most output capacitors – stable with zero to high ESR
  • Power good (PG) output
  • Foldback current limiting and "hiccup" mode short-circuit protection
  • Safe start-up into pre-biased loads
  • Ultra-light load efficiency – up to 80% at 10mA
  • Up to 95% efficiency
  • Feedback reference accuracy as high as ±1%


下单器件型号 Part Status Pkg. Type Lead Count (#) Temp. Range Carrier Type Buy Sample
Obsolete VFQFPN 28 -40 to -40°C Reel


文档标题 其他语言 类型 文档格式 文件大小 日期
ZSPM4023-ZSPM4022 Feature Sheet 简易格式数据手册 PDF 522 KB
ZSPM4022-09 Short-form Datasheet 简易格式数据手册 PDF 289 KB
ZSPM4022-09 Datasheet 数据手册 PDF 1.27 MB
IDT CAD Altium Libraries for AID Products Rev 20160819 指南 ZIP 1.20 MB
ZSPM4022/ZSPM4023 Evaluation Kit Description 手册 PDF 714 KB
ZSPM4022-23 Application Note - Circuit Layout and Component Selection 手册 PDF 961 KB

Boards & Kits

器件号 文档标题 类型 公司
ZSPM4022-09-KIT Evaluation Kit for ZSPM4022-09 Renesas