NX2113 datasheet(1/19 Pages) MICROSEMI

tên linh kiện	NX2113

Giải thích chi tiết về linh kiện	300kHz & 600kHz SYNCHRONOUS PWM CONTROLLER WITH PROGRAMMABLE BUS UVLO

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nhà sản xuất	MICROSEMI [Microsemi Corporation]

Trang chủ	http://www.microsemi.com

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NX2113/2113A

1

Rev. 2.0

11/18/05

TYPICAL APPLICATION

DESCRIPTION

The NX2113 controller IC is a synchronous Buck con-

troller IC designed for step down DC to DC converter

applications. Synchronous control operation replaces the

traditional catch diode with an Nch MOSFET resulting

in improved converter efficiency. The NX2113 controller

is optimized to convert bus voltages from 2V to 25V to

outputs as low as 0.8V voltage using Enable pin to

program the BUS voltage start up threshold. The NX2113

operates at 300kHz while 2113A is set at 600kHz

operation which together with less than 50 nS of dead

band provides an efficient and cost effective solution.

Other features of the device are:

Internal digital soft start; Vcc undervoltage lock out;

Output undervoltage protection with digital filter and shut-

down capability via the enable pin.

n Synchronous Controller in 10 Pin Package

n Bus voltage operation from 2V to 25V

n Enable pin allows programmable BUS UVLO

n Less than 50 nS adaptive deadband

n Internal 300kHz for 2113 and 600kHz for 2113A

n Internal Digital Soft Start Function

n Separated power ground and analog ground for

extra noise filtering

n Pb-free and RoHS compliant

ORDERING INFORMATION

FEATURES

300kHz & 600kHz SYNCHRONOUS PWM CONTROLLER WITH

PROGRAMMABLE BUS UVLO

APPLICATIONS

n Graphic Card on board converters

n Memory Vcore or Vddq supply

n On board DC to DC such as

12V, 5V to 3.3V, 2.5V or 1.8V

n Hard Disk Drive

PRELIMINARY DATA SHEET

Evaluation board available.

Device

Temperature

Package

Frequency

Pb-Free

NX2113CMTR

0 to 70oC

MLPD-10L

300kHz

Yes

NX2113CUTR

0 to 70o C

MSOP-10L

300kHz

Yes

NX2113ACMTR

0 to 70oC

MLPD-10L

600kHz

Yes

NX2113ACUTR

0 to 70o C

MSOP-10L

600kHz

Yes

Figure1 - Typical application of 2113A

C6

1uF

C5

1uF

Cin

Vin

+12V

D1

M1

M2

L1 1.5uH

C2

2.7nF

C7

0.1uF

R2

10k 1%

11k

R4

10k 1%

R1

Vin

+5V

47pF

C1

68k

R5

12.4k

R6

Vcc

BST

Fb

Comp

SW

Hdrv

Ldrv

PGnd

6

1

2

10

4

8

9

3

PVcc

5

EN

7

C4

1uF

10

R3

+1.6V,10A

Vout

270uF,18mohm

3x (220uF,12mohm)

Co

Gnd

11

L2 1uH

C3

47uF

OFF

ON

2N3904

10k

R8

R7

10k

C8 2.2nF

1.2k

R9

C9

1uF

Pb Free Product

Số phần tương tự - NX2113

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Microsemi Corporation	NX2114	810Kb / 20P	300kHz & 600kHz SYNCHRONOUS PWM CONTROLLER
	NX2114A	810Kb / 20P	300kHz & 600kHz SYNCHRONOUS PWM CONTROLLER
	NX2114ACSTR	810Kb / 20P	300kHz & 600kHz SYNCHRONOUS PWM CONTROLLER
	NX2114CSTR	810Kb / 20P	300kHz & 600kHz SYNCHRONOUS PWM CONTROLLER
	NX2116	408Kb / 14P	SYNCHRONOUS PWM CONTROLLER WITH CURRENT LIMIT, POWER GOOD & OVER VOLTAGE

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