178021501 Datasheet, PDF (1/32 Pages) Wurth Elektronik GmbH & Co. KG, Germany. – MagI³C Power Module Product Family VDRM - Variable Step Down Regulator Module

171021501/WPMDU1251501NT
MagI³C Power Module Product Family
VDRM - Variable Step Down Regulator Module
A DESCRIPTION
The VDRM series of the MagI³C Power Modules
Family comprises a fully integrated current mode
DC/DC power supply with the switching power
stage, control circuitry and passives all in one
package. These devices also have a built-in
compensation circuitry and soft-start feature for a
smooth, safe power up. The small QFN package is
easy to solder onto a printed circuit board where a
low profile is demand. The MagI³C Power Module
requires as few as five external components and
eliminates loop compensation and magnetics part
selection process.
The VDRM series offers high efficiency and delivers
up to 2.5A of output current with accurate regulated
output voltages. It operates from input voltage 7V to
50V.
The VDRM regulators also have on-board protection
circuitry to avoid thermal and electrical damage. The
MagI³C Power Module offers flexibility and the
feature of a discrete point-of-load design. This is
ideal for powering a wide area of systems and ICs.
BQFN-41
01P
B FEATURES
 Peak efficiency up to 96%
 Current capability up to 2.5A
 Wide input voltage range: 7V-50V
 Regulated output voltages: 2.5V-15V
 65V Line Transient Protection
 Switching frequency range: 400kHz-1MHz
adjustable
 External clock synchronisation
 Built-in soft-start and tracking
 Power Good signal and pre-bias output
 Under voltage lockout protection (UVLO)
 Voltage overshoot and over-current
protection
 Over temperature and current protection
 Operating ambient temperature: -40-85°C
 EN55022 Class B compliant
D TYPICAL APPLICATION CIRCUIT
C APPLICATIONS
 Point of Load DC-DC applications
 Servers, Data and Telecom
 System power supplies
 DSPs, FPGAs, MCUs and MPUs
 I/O interface
V_IN
R_UVLO1
C_IN
R_UVLO2
VIN
Module
DL/UVLO
VOUT
VADJ
RT/CLK
PG
SS/TRK SSCHO AGND PGND
R_SET
V_OUT
C_OUT
VOUT(V) 3.3
RSET(kΩ) 31.6
RRT(kΩ) OPEN
RUVLO1(kΩ) 174
RUVLO2(kΩ) 40.2
CIN(µF)min 4.7
COUT(µF)min 2x47
VIN(V)
7
to 36
fSW(kHz) 400
5.0
52.3
1100
174
31.6
2x2.2
2x47
8
to 50
500
12
140
267
174
15.4
2x2.2
2x47
15
to 50
800
Data Sheet
©2014
01S
Würth Elektronik eiSos GmbH & Co. KG - REV 0.1
PRELIMINARY
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