Datasheet > NN30320A-VB

NN30320A-VB

更新时间： 2024-11-06 01:21:35

品牌	Logo	应用领域
松下 - PANASONIC		/
页数	文件大小	规格书
33页	1810K
描述
3 A Synchronous DC-DC Step down Regulator

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NN30320A-VB 数据手册

Doc No. TA4-EA-06187

Revision. 2

Product Standards

NN30320A

http://www.semicon.panasonic.co.jp/en/

3 A Synchronous DC-DC Step down Regulator

(V_IN= 4.5 V to 28 V, V_OUT= 0.75 V to 5.5 V)

FEATURES

DESCRIPTION

 High-Speed Response DC-DC Step Down Regulator

Circuit that employs Hysteretic Control System

 Two 20 m (Typ) MOSFETs

NN30320A is a synchronous DC-DC Step down

Regulator (1-ch) comprising of a Controller IC and two

power MOSFETs and employs the hysteretic control

system.

for High Efficiency at 3 A

 Skip (discontinuous) mode for Light Load Efficiency

 Maximum Output Current : 3 A

 Input Voltage Range : AV_IN= 4.5 V to 28 V,

PV_IN= 4.5 V to 28 V

 Output Voltage Range : 0.75 V to 5.5 V

 Selectable Switching Frequency

: 210 kHz, 430 kHz, 650 kHz

By this system, when load current changes suddenly,

it responds at high speed and minimizes the changes

of output voltage.

Since it is possible to use capacitors with small

capacitance and it is unnecessary to add external parts

for system phase compensation, this IC realizes

downsizing of set and reducing in the number of

external parts. Output voltage is adjustable by user.

Maximum current is 3 A.

 Adjustable Soft Start

 Low Operating and Standby Quiescent Current

 Power Good Indication for Output Over and

Under Voltage

 Built-in Under Voltage Lockout (UVLO),

Thermal Shut Down (TSD),

APPLICATIONS

High Current Distributed Power Systems such as

・HDDs (Hard Disk Drives)

・SSDs (Solid State Drives)

・PCs

Over Voltage Detection (OVD),

Under Voltage Detection (UVD),

Over Current Protection (OCP),

・Game consoles

Short Circuit Protection (SCP)

・Servers

 24 pin Plastic Quad Flat Non-leaded Package Heat

Slug Down (QFN Type)

・Security Cameras

・Network TVs

(Size : 4 mm  4 mm  0.7 mm, 0.5 mm pitch)

・Home Appliances

・OA Equipment etc.

EFFICIENCY CURVE

APPLICATION CIRCUIT EXAMPLE

VREG

PVIN

100 k

PGOOD

VOUT

BST

AVIN

NN30320A

0.1 µF

1 µH

AVIN

V_OUT= 1.2 V

1.5 k

VFB

22 µF  2

VREG

AGND PGND

1 µF 10 nF

Note : The application circuit is an example. The operation of

the mass production set is not guaranteed. Sufficient

evaluation and verification is required in the design of

the mass production set. The Customer is fully

responsible for the incorporation of the above

illustrated application circuit in the design of the

equipment.

Condition :

V_IN= 12 V, V_OUTSetting = 1.05 V, 1.2 V, 1.8 V, 3.3 V, 5.0 V,

Switching Frequency = 650 kHz, FCCM / Skip mode,

L_O= 1 µH, C_O= 44 µF (22 µF  2)

Page 1 of 32

Established : 2013-06-20

Revised

: 2015-02-08

12 3 4 5 6 7...33

中文翻译

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与NN30320A-VB相关器件

型号	品牌	获取价格	描述	数据表
NN30332A	PANASONIC	获取价格	10 A Synchronous DC-DC Step down Regulator
NN30332A-VB	PANASONIC	获取价格	10 A Synchronous DC-DC Step down Regulator
NN-307	TE	获取价格	SPST Double Break Main Contacts
NN31001A	PANASONIC	获取价格	7 A Synchronous DC-DC Step down Regulator,
NN325-Q1	TI	获取价格	多感应触摸管理器
NN325TRHARQ1	TI	获取价格	多感应触摸管理器 \| RHA \| 40 \| -40 to 105
NN3478FAS-A	PANASONIC	获取价格	Consumer Circuit, PQFP100, QFH-100
NN-449B	MACOM	获取价格	SPDT Double Break Main Contacts
NN5099K	ETC	获取价格	IC DIVISION
NN511000J-40	ETC	获取价格	x1 Fast Page Mode DRAM

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