DESCRIPTION

NN31001A is a synchronous DC-DC step down regulator (1-ch), Power Supply in Package (PSiP), which integrates a Controller IC that employs a hysteretic control system, two Power MOSFETs, an Inductor and Capacitors into a single 8.5 x 7.5 x 4.7mm QFN package.

The easiness of mounting PSiP onto a Printed Circuit Board (PCB), a very small footprint and a highly reduced number of external components, offers very compact and simplified solutions for applications requiring pointof-load design.

FEATURES

● High-Speed Response DC-DC Step Down Regulator Circuit

that employs Hysteretic Control System

● Built-in inductor and capacitors

● Skip (discontinuous) Mode for high efficiency at light load

Maximum Output Current : 7 A

● Input Voltage Range : PVIN=AVIN = 4.5 V to 28 V,

Output Voltage Range : 0.6 V to 5.5 V

Selectable Switching Frequency 400 kHz / 600 kHz / 800kHz

● Built-in Feed Back Resistors for 1.0 V / 3.3 V default settings

Configurable output voltage settings using external Resistors

● Adjustable Soft Start

● Low Operating and Standby Quiescent Current

● Open Drain Power Good Indication for Output Over / Under

Voltage

● Selectable Auto recovery / latch off protection system

● Adjustable current limit threshold

● Built-in Under Voltage Lockout (UVLO),

Thermal Shut Down (TSD), Under Voltage Detection (UVD),

Over Voltage Detection (OVD), Short Circuit Protection (SCP)

Over Current Protection (OCP)

● Plastic Quad Flat Non-leaded Package Heat Slug Down

(QFN Type, Size : 8.5 mm  7.5 mm, 0.5 mm pitch)

APPLICATIONS

High Current Distributed Power Systems such as

• DSP and FPGA Point-of-Load Applications

• Routers

• Industrial Equipment

• Space constrained Applications etc.