unr3-6to10w Murata Manufacturing Co., Ltd, unr3-6to10w Datasheet

unr3-6to10w

Manufacturer Part Number

unr3-6to10w

Description

Single Output, Non-isolated, 1.8/2.5/3.3vout 3.6-10w Dc/dc Converters

Manufacturer

Murata Manufacturing Co., Ltd

Datasheet

1.UNR3-6TO10W.pdf (7 pages)

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Typical topology is shown.

Features

Low cost! High reliability!

1" x 1" SMT or through-hole packages

Gull-wing leads; Standard reflow

Complete; No external components

Outputs: 1.8V/2A, 2.5V/2A, 3.3V/3A

Inputs: 4.75-5.5V, 10.8-13.6V

Guaranteed efficiencies to 87%

Output noise as low as 40mVp-p

Transient response as quick as 20μsec

–40 to +70°C operation with no derating

On/off control; EMC compliant

IEC950/EN60950/UL1950 approvals

Modifications and customs for OEM's

www.murata-ps.com/rohs

For full details go to

CONTROL

GROUND

RETURN

ON/OFF

LOGIC

INPUT

UNDERVOLTAGE

SHUTDOWN

www.murata-ps.com

CONTROLLER

2.5V (2A), 5V-to-3.3V (3A), and 12V-to-3.3V (3A) DC/DC converters in miniature,

1" x 1" surface-mount and through-hole packages. The "gull-wing" SMT packages

(with metal shells and non-conductive plastic baseplates) weigh a mere 17 grams

and can withstand lead temperatures up to +230°C. They are compatible with virtu-

ally all contemporary pick-and-place and solder-reflow processes.

every low-voltage, high-current CPLD, ASIC, DSP , etc. has its own "power plant"

right next to it. With isolated DC/DC converters inevitably residing at the edges of

boards in proximity with backplanes and power buses, the "on-board" proliferation

of distributed power will continue with more cost-effective, non-isolated devices.

The low-cost, easy-to-use (no external components required), highly reliable (100%

fully automated SMT construction) 3.6-10W UNR Series makes this power pro-

cessing at the concluding point of use a practical reality today.

optional on/off control (for power-sequencing requirements), output current limiting,

and short-circuit protection (foldback technique with auto-recovery). Additionally,

the 12V-to-3.3V models offer input undervoltage lockout (at 9.6V). Their impressive

guaranteed efficiencies enable all models to deliver their fully rated output power

from –40 to +65/70°C (ambient) without heat sinking or forced-air cooling.

linear regulators, take a look at one of these new switching buck regulators. Their

high efficiency, ease-of-use, long-term reliability, and overall cost effectiveness will

impress you. Safety agency approvals are currently in progress.

Single Output, Non-Isolated, 1.8/2.5/3.3V

PWM

MPS's 3.6-10W UNR Series consists of non-isolated, 5V-to-1.8V (2A), 5V-to-

The true benefits of distributed power will ultimately be realized only when

These versatile DC/DC's are fully line and load regulated. They feature user-

If you've already considered and rejected the use of inefficient, step-down,

Figure 1. Simplified Schematic

CURRENT LIMITING

& S.C. SHUTDOWN

REFERENCE &

ERROR AMP

Technical enquiries email: sales@murata-ps.com, tel:

"D5" models do not have input undervoltage shutdown.

"D5" models employ a more traditional buck-regulator design

in which this FET is replaced with a power Schottky diode.

OUT

3.6-10W DC/DC Converters

OUTPUT

RETURN

OUT

UNR Series

MDC_UNR 3.6-10W_B01

+1 508 339 3000

Page 1 of 7

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