NN31001A-EVB-0 Просмотр технического описания (PDF) - Panasonic Corporation

Номер в каталоге

Компоненты Описание

производитель

NN31001A-EVB-0

User’s Guide For Evaluation Board NN31001A-EVB Power Supply in Package (PSiP)

Panasonic Corporation 

Under

Development

User’s Guide (E)

NN31001A-EVB

1 Introduction

This user’s guide contains background information for the

NN31001A : 7A Synchronous DC-DC Step Down Regulator(1ch),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 QFN package.

as well as support documentation for the NN31001A Evaluation Board (NN31001A-EVB). Also included are the appearance ,

the pin function , the test set-up , the schematic , the bill of materials and the board layout for the Evaluation Board.

1.1 Overview

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 4.7 mm QFN package. The easiness of mounting PSiP onto 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 point-

of-load design. The number of external components have been reduced to only input / output capacitor, slow start capacitor

and feedback resistors. Furthermore, for applications requiring an output voltage of 1.0V / 3.3V, the external feedback

resistors can be eliminated, resulting into even a smaller footprint.

The PSiP achieves efficiencies of greater than 94% with very good power dissipation capabilities.

Table 1. NN31001A-EVB Input Voltage / Output Current

EVB

NN31001A-EVB

INPUT VOLTAGE RANGE

VIN = 4.5 V to 28 V

VEN = 5 V

OUTPUT CURRENT RANGE

0 A to 7 A

1.2 Recommended Operating Conditions

Table 2. NN31001A-EVB Recommended Operating Conditions

Parameter

Symbol

Min

Typ

Supply Voltage range

Input Voltage Range

Output Voltage Range

AVIN

4.5

12

PVIN

4.5

12

VMODE

– 0.3

—

VFSEL

– 0.3

—

VPRTCNT

– 0.3

—

VEN

– 0.3

—

VPGOOD

– 0.3

—

VLX

– 0.3

—

Notes : Voltage values, unless otherwise specified, are with respect to GND.

GND is voltage for AGND, PGND. AGND = PGND

VIN is voltage for AVIN, PVIN. VIN = AVIN = PVIN.

Do not apply external currents or voltages to any pin not specifically mentioned.

*1 : (VREG + 0.3) V must not exceed 6 V.

*2 : (VIN + 0.3) V must not exceed 30 V.

Max

28

28

VREG + 0.3

VREG + 0.3

VREG + 0.3

5.0

VREG + 0.3

VIN + 0.3

Unit Notes

V

—

V

—

V

*1

V

*1

V

*1

V

—

V

*1

V

*2

Regulations No.1001V201E_21JAN2014

Page 3 of 15

Share Link: