NCP1530DM30R2G ON Semiconductor, NCP1530DM30R2G Datasheet

NCP1530DM30R2G

Manufacturer Part Number

NCP1530DM30R2G

Description

IC CONV DC-DC 600MA 3.0V MICRO-8

Manufacturer

ON Semiconductor

Type

Step-Down (Buck)r

Datasheet

1.NCP1530DM25R2.pdf (16 pages)

Specifications of NCP1530DM30R2G

Internal Switch(s)

Yes

Synchronous Rectifier

Number Of Outputs

Voltage - Output

Current - Output

600mA

Frequency - Switching

600kHz

Voltage - Input

4 ~ 5.5 V

Operating Temperature

0°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

8-MSOP, Micro8™, 8-uMAX, 8-uSOP,

Mounting Style

SMD/SMT

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Power - Output

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

Other names

NCP1530DM30R2G
NCP1530DM30R2GOSTR

Current page: 1 of 16
Download datasheet (133Kb)

NCP1530

600 mA PWM/PFM

Step−Down Converter with

External Synchronization Pin

(Buck) DC−DC converter for usage in systems supplied from 1−cell

Li−ion, or 2 or more cells Alkaline/NiCd/NiMH batteries. It can

operate in Constant−Frequency PWM mode or PWM/PFM mode in

which the controller will automatically switch to PFM mode

operation at low output loads to maintain high efficiency. The

switching frequency can also be synchronized to external clock

between 600 kHz and 1.2 MHz. The maximum output current is up

to 600 mA. Applying an external synchronizing signal to SYN pin

can supersede the PFM operation.

bringing the enable input (EN) low. In shutdown mode, the regulator

is disabled and the shutdown supply current is reduced to

0.5 mA (typ). Other features include built−in undervoltage lockout,

internal thermal shutdown, an externally programmable soft−start

time and output current limit protection. The NCP1530 operates

from a maximum input voltage of 5.0 V and is available in a space

saving, low profile Micro8

Features

Typical Applications

January, 2005 − Rev. 4

The NCP1530 is a PWM/PFM non−synchronous step−down

The NCP1530 consumes only 47 mA (typ) of supply current

and Capacitor, Ceramic Capacitors Can be Used

OUT

Pb−Free Package is Available

High Conversion Efficiency, up to 92% at V

Current−Mode PWM Control

Automatic PWM/PFM Mode for Current Saving at Low Output Loads

Internal Switching Transistor Support 600 mA Output Current

High Switching Frequency (600 kHz), Support Small Size Inductor

Synchronize to External Clock Signal up to 1.2 MHz

100% Duty Cycle for Maximum Utilization of the Supply Source

Programmable Soft−Start Time through External Chip Capacitor

Externally Accessible Voltage Reference

Built−In Input Undervoltage Lockout

Built−In Output Overvoltage Protection

Power Saving Shutdown Mode

Space Saving, Low Profile Micro8 Package

PDAs

Digital Still Camera

Cellular Phone and Radios

Portable Test Equipment

Portable Scanners

Portable Audio Systems

Semiconductor Components Industries, LLC, 2005

OUT

= 3.0 V, no switching) and can be forced to shutdown mode by

= 5.0 V, V

= 3.3 V, I

OUT

= 3.3 V)

= 300 mA

package.

= 4.3 V,

See detailed ordering and shipping information in the package

dimensions section on page 14 of this data sheet.

GND

SYN

ORDERING INFORMATION

xxxx = Specific Device Code

PIN CONNECTIONS

http://onsemi.com

= Assembly Location

= Wafer Lot

= Year

= Work Week

CASE 846A

DM SUFFIX

(Top View)

Micro8]

Publication Order Number:

MARKING

DIAGRAM

ALYW

NCP1530/D

xxxx

REF

OUT

Related parts for NCP1530DM30R2G

NCP1530DM30R2G Summary of contents

Page 1

NCP1530 600 mA PWM/PFM Step−Down Converter with External Synchronization Pin The NCP1530 is a PWM/PFM non−synchronous step−down (Buck) DC−DC converter for usage in systems supplied from 1−cell Li−ion more cells Alkaline/NiCd/NiMH batteries. It can operate in Constant−Frequency ...

Page 2

*Optional Component Figure 1. Typical Step−Down Converter Application ENABLE THERMAL EN 5 DETECT SHUTDOWN SYNC DETECT AND SYN 2 TIMING BLOCK VOLTAGE REFERENCE ...

Page 3

PIN FUNCTION DESCRIPTIONS Pin Symbol 1 V Unregulated Supply Input SYN Oscillator Synchronization and Mode Selection Input. SYNC = GND (Automatic PWM/PFM mode) The converter operates at 600 kHz fixed−frequency PWM mode primarily, and automatically switches to variable−frequency ...

Page 4

ELECTRICAL CHARACTERISTICS typical value for min/max values unless otherwise noted Characteristic Input Voltage Output Voltage (I = 150 mA 1.0 V < V load R NCP1530DM25R2 NCP1530DM27R2 NCP1530DM30R2 NCP1530DM33R2 Maximum Output ...

Page 5

TYPICAL OPERATING CHARACTERISTICS 25 C for typical value for min/max values unless otherwise noted 2. 5.0 V 2. ...

Page 6

1 REN Load SYN Pin = NC 675 3.0 V 3.3 V 600 2.5 V 2.7 V 525 450 AMBIENT TEMPERATURE ( ...

Page 7

PWM/PFM 90 80 SYN 600 kHz SYN 1.2 MHz 70 60 PWM L = 5.6 mH 100 I , OUTPUT LOAD CURRENT (mA) LOAD Figure 15. Efficiency vs. Output Load Current (V = 3.5 V, ...

Page 8

PWM/PFM 90 80 SYN 1.2 MHz SYN 600 kHz 70 60 PWM L = 5.6 mH OUTPUT LOAD CURRENT (mA) LOAD Figure 21. Efficiency vs. Output Load Current ( ...

Page 9

2 mA) IN OUT LOAD Upper Trace: Output Voltage Ripple, 50 mVac/Div. Lower Trace: LX Pin Switching Waveform, 2.0 V/Div. Figure 27. PFM Switching Waveform and Output Ripple for V ...

Page 10

2 100 pF, No load) IN OUT SS Upper Trace: Output Voltage, 2.0 V/Div. Lower Trace: EN Pin Waveform, 2.0 V/Div. Time Scale: 5.0 ms/Div. Figure 33. Soft−Start Output Voltage Waveform ...

Page 11

Introduction The NCP1530 series are step−down converters with a smart control scheme that operates with 600 kHz fixed Pulse Width Modulation (PWM) at moderate to heavy load currents, so that high efficiency, noise free output voltage can be generated. In ...

Page 12

Power Saving Pulse−Frequency−Modulation (PFM) Control Scheme With the SYN pin (pin 2) connected to ground or left open, the converter will operate in PWM/PFM auto mode. Under this operating mode, NCP1530 will stay in constant frequency PWM operation in moderate ...

Page 13

For ease of application, the previous equation was plotted in Figure 35 to help end user to select the right inductor for specific application rule of thumb, the user needs to be aware of the maximum peak inductor ...

Page 14

... ORDERING INFORMATION Device NCP1530DM25R2 NCP1530DM27R2 NCP1530DM30R2 NCP1530DM30R2G NCP1530DM33R2 †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. NOTE: The ordering information lists four standard output voltage device options. Additional device with output voltage ranging from 2 ...

Page 15

... Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. NCP1530 PACKAGE DIMENSIONS Micro8 DM SUFFIX CASE 846A−02 ISSUE F NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14 ...

Page 16

... Fax: 480−829−7709 or 800−344−3867 Toll Free USA/Canada Email: orderlit@onsemi.com NCP1530 N. American Technical Support: 800−282−9855 Toll Free USA/Canada Japan: ON Semiconductor, Japan Customer Focus Center 2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051 Phone: 81−3−5773−3850 http://onsemi.com 16 ON Semiconductor Website: http://onsemi ...

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