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MYRGM285150B31RA

Description
Power Supply Module,
CategoryPower/power management    The power supply circuit   
File Size1MB,17 Pages
ManufacturerMurata
Websitehttps://www.murata.com
Environmental Compliance
Download Datasheet Parametric View All

MYRGM285150B31RA Overview

Power Supply Module,

MYRGM285150B31RA Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerMurata
Reach Compliance Codeunknow
“PicoBK™” MYRGM-W/MYRGM-B series
1.5A Inductor Built-in Step-Down DC/DC Converters
☆GreenOperationCompatible
■GENERAL
DESCRIPTION
The MYRGM-W/MYRGM-B series is a synchronous step-down mini DC/DC converter
which integrates an inductor and a control IC in one tiny package (2.5mm×3.2mm, h=1.0mm).
An internal coil simplifies the circuit and enables minimization of noise and other operational
trouble due to the circuit wiring. A wide operating voltage range of 2.7V to 5.5V enables
Support for applications that require an internally fixed output voltage (0.8V to 3.6V).
The MYRGM-W/MYRGM-B series use synchronous rectification at an operating frequency
of 3.0MHz. The MYRGM-W/MYRGM-B series use High Speed Transient Response-COT.
PWM control (MYRGM-W) or automatic PWM/PFM switching control (MYRGM-B) can be selected.
The series have a high speed soft-start as fast as 0.3ms in typical for quick turn-on. With the built-in UVLO (Under Voltage Lock
Out) function, the internal P-channel driver transistor is forced OFF when input voltage becomes 2.0V or lower. When
CE=Low, the integrated C
L
discharge function which enables the electric charge at the output capacitor C
L
to be discharged via
the internal discharge switch located between the L
X
and V
SS
pins. The power consumption will be less than 1.0μA.
■APPLICATIONS
●Note
Book PC
●Tablet
PC
●SSD
●Mobile
phone
●Projector
●Printer
■FEATURES
Input Voltage
Output Voltage
Oscillation Frequency
Output Current
Efficiency
Control Methods
: 2.7V½5.5V
: 0.8V½3.6V
: 3.0MHz
: 1.5A
: 92% (V
IN
=5.0V, V
OUT
=3.3V/500mA)
: High Speed Transient Response-COT
100% Duty Cycle
PWM (MYRGM-W)
PWM/PFM (MYRGM-B)
: Thermal Shut Down Current
Limit Circuit (Drop)
Short Circuit Protection (Latch)
: Soft-start Circuit Built-in
UVLO
C
L
Discharge
: Low ESR Ceramic Capacitor
: -40℃½+105℃
: EU RoHS Compliant, Pb Free
Halogen Free
Circuit Protection
Functions
Output Capacitor
Operating Ambient Temperature
Environmentally Friendly
■TYPICAL
APPLICATION CIRCUIT
■TYPICAL
PERFORMANCE
CHARACTERISTICS
MYRGM-W/MYRGM-B
(V
OUT
=3.3V)
100
MYRGM-B
80
Efficiency : EFFI (%)
60
40
MYRGM-W
20
V
IN
=5.0V
0
0.1
1
10
100
1000
Output Current : I
OUT
(mA)
10000
MYRGM-W/B series A01 Page 1 of 17
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