NJW4153U2-A-TE2 datasheet, PDF

NJW4153

Switching Regulator IC for Buck Converter

Current Mode Control w/ 40V/1A MOSFET

GENERAL DESCRIPTION

The

NJW4153

is a buck converter with

40V/1A

MOSFET. It

corresponds to high oscillating frequency, and Low ESR Output

Capacitor (MLCC) within wide input range from 4.6V to 40V.

Therefore, the

NJW4153

can realize downsizing of applications

with a few external parts so that adopts current mode control.

Also, it has a soft start function, an over current protection and a

thermal shutdown circuit.

It is suitable for power supply circuit of Micro Processor, DSP

and so on that need fast transient response.

■

PACKAGE OUTLINE

NJW4153U2

NJW4153KV1

FEATURES

Current mode Control

Maximum Rating Input Voltage

45V

Wide Operating Voltage Range

4.6V to 40V

Switching Current

1.4A min.

PWM Control

Built-in Compensation Circuit

Correspond to Ceramic Capacitor (MLCC)

Oscillating Frequency

1MHz typ. (A ver.)

Soft Start Function

4ms typ.

UVLO (Under Voltage Lockout)

Over Current Protection (Hiccup type)

Thermal Shutdown Protection

Standby Function

Package Outline

NJW4153U2 : SOT-89-5

NJW4153KV1 : ESON8-V1

PRODUCT CLASSIFICATION

Part Number

NJW4153U2-A

NJW4153KV1-A

Version

A

Oscillation

Frequency

1MHz typ.

Package

SOT-89-5

ESON8-V1

Operating

Temperature

Range

General Spec.

-40°C to +85°C

General Spec.

-40°C to +85°C

Ver.2013-03-21

-1-

NJW4153

PIN CONFIGURATION

PIN FUNCTION

1. ON/OFF

2. GND

3. IN-

4. SW

5. V

+

PIN FUNCTION

8

1

1. SW

7

2

2. N.C.

+

6

3

3. V

5

4

4. N.C.

5. ON/OFF

Exposed PAD on backside

6. GND

connect to GND.

7. N.C.

8. IN-

(Bottom View)

5

(2)

4

1

2

3

4

8

7

6

5

1

2

3

(Top View)

NJW4153U2

NJW4153KV1

BLOCK DIAGRAM

V

+

SLOPE

COMP.

UVLO

Standby

ON/OFF

450k

Ω

Low Frequency

Control

OSC

S Q

R

TSD

ER

⋅

AMP

Soft Start

Vref

0.8V

PWM

Buffer

CURRENT

SENSE

OCP

ON/OFF

High: ON

Low : OFF

(Standby)

SW

IN-

GND

-2-

Ver.2013-03-21

NJW4153

ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

Supply Voltage

V

+

V

+

- SW pin Voltage

V

V-SW

IN- pin Voltage

V

IN-

ON/OFF pin Voltage

V

ON/OFF

Power Dissipation

P

D

(Ta=25°C)

UNIT

V

mW

ESON8-V1

MAXIMUM RATINGS

+45

-0.3 to +6

+45

SOT-89-5

625 (*1)

2,400 (*2)

600 (*3)

1,800 (*4)

Junction Temperature Range

Tj

-40 to +150

°C

Operating Temperature Range

T

opr

-40 to +85

°C

Storage Temperature Range

T

stg

-40 to +150

°C

(*1): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard size, 2Layers, Cu area 100mm

2

)

(*2): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 4Layers)

(For 4Layers: Applying 74.2×74.2mm inner Cu area and a thermal via hall to a board based on JEDEC standard JESD51-5)

(*3): Mounted on glass epoxy board. (101.5×114.5×1.6mm: based on EIA/JEDEC standard, 2Layers FR-4, with Exposed Pad)

(*4): Mounted on glass epoxy board. (101.5×114.5×1.6mm: based on EIA/JEDEC standard, 4Layers FR-4, with Exposed Pad)

(For 4Layers: Applying 99.5×99.5mm inner Cu area and a thermal via hole to a board based on JEDEC standard JESD51-5)

RECOMMENDED OPERATING CONDITIONS

PARAMETER

SYMBOL

Supply Voltage

V

+

MIN.

4.6

TYP.

–

MAX.

40

UNIT

V

Ver.2013-03-21

-3-

NJW4153

ELECTRICAL CHARACTERISTICS

PARAMETER

Under Voltage Lockout Block

ON Threshold Voltage

OFF Threshold Voltage

Hysteresis Voltage

Soft Start Block

Soft Start Time

Oscillator Block

Oscillation Frequency

(Low Frequency Control)

Oscillation Frequency

deviation (Supply voltage)

Oscillation Frequency

deviation (Temperature)

Error Amplifier Block

Reference Voltage

Input Bias Current

PWM Comparate Block

Maximum Duty Cycle

Minimum ON time

Over Current Protection Block

Cool Down Time

Output Block

Output ON Resistance

Switching Current Limit

SW Leak Current

ON/OFF Block

ON Control Voltage

OFF Control Voltage

Pull-down Resistance

General Characteristics

Quiescent Current

Standby Current

SYMBOL

(Unless otherwise noted, V

+

=V

ON/OFF

=12V, Ta=25°C)

TEST CONDITION

MIN.

TYP.

MAX.

UNIT

V

T_ON

V

T_OFF

V

HYS

V

+

= L

→

H

V

+

= H

→

L

4.3

4.2

70

4.45

4.35

100

4.6

4.5

–

V

mV

T

SS

V

B

=0.75V

2

4

8

ms

f

OSC

f

OSC_LOW

f

DV

f

DT

A version, V

IN-

=0.7V

V

IN-

=0.4V

V

+

=4.6 to 40V

Ta= -40°C to +85°C

900

–

1,000

370

1

5

1,100

–

kHz

%

V

B

I

B

-1.0%

-0.1

0.8

–

+1.0%

+0.1

V

µA

M

AX

D

UTY

t

ON-min

V

IN-

=0.7V

85

–

90

140

–

180

%

ns

t

COOL

–

8

–

ms

R

ON

I

LIM

I

LEAK

I

SW

=1A

V

ON/OFF

=0V, V

+

=45V, V

SW

=0V

–

1.4

–

0.45

1.9

–

0.75

2.4

1

Ω

A

µA

V

ON

V

OFF

R

PD

V

ON/OFF

= L

→

H

V

ON/OFF

= H

→

L

1.6

0

–

450

V

+

0.5

–

V

kΩ

I

DD

I

DD_STB

R

L

=no load, V

IN-

=0.7V

V

ON/OFF

=0V

–

3.9

–

4.4

1

mA

µA

-4-

Ver.2013-03-21

NJW4153

TYPICAL APPLICATIONS

L

V

IN

C

IN

V

+

SW

V

OUT

C

FB

R2

NJW4153

ON/OFF

High: ON

Low: OFF

(Standby)

GND

IN-

SBD

C

OUT

R1

Ver.2013-03-21

-5-

Parameter Name	Attribute value
category	semiconductor;Multi-channel IC (PMIC)
Maker	Nisshinbo Micro Devices Inc.
series	-
Package	Tape and Reel (TR)
Function	step down
Output configuration	just
Topology	step down
Output type	Adjustable
Number of outputs	1
Voltage - Input (minimum)	4.6V
Voltage - input (maximum)	40V
Voltage - Output (minimum/fixed)	0.8V
Voltage - Output (maximum)	40V
Current - Output	2.4A
Frequency - Switch	1MHz
Synchronous rectifier	none
Operating temperature	-40°C ~ 85°C
Installation type	surface mount type
Package/casing	SOT-89-5/6
Supplier device packaging	SOT-89-5
Basic product number	NJW4153

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