Datasheet > UNR-3.3/3-D5

UNR-3.3/3-D5

更新时间： 2024-10-13 23:39:31

品牌	Logo	应用领域
其他 - ETC		转换器光电二极管
页数	文件大小	规格书
7页	132K
描述
DC-to-DC Voltage Converter

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UNR-3.3/3-D5 数据手册

INNOVATION and EXCELLENCE

Single Output

UNR Series

Non-Isolated, 1.8/2.5/3.3VOUT

3.6-10W DC/DC Converters

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

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" packages (with

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

can withstand temperatures up to +235°C. They are compatible with virtually all

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

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

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 processing at

the concluding point of use a practical reality today.

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

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 model offers input undervoltage lockout (at 9.6V). Their impressive

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

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

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

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.

Features

Low cost! High reliability!

1" x 1" SMT, 1" x 1" 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 30mVp-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

+V^OUT

+V^IN

➀

OUTPUT

RETURN

INPUT

RETURN

➀

LOGIC

GROUND

CURRENT LIMITING

& S.C. SHUTDOWN

UNDERVOLTAGE

SHUTDOWN

PWM

CONTROLLER

ON/OFF

CONTROL

REFERENCE &

ERROR AMP

➀ "D5" models do not have input undervoltage shutdown.

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

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

Figure 1. Simpliﬁed Schematic

DATEL, Inc., Mansﬁeld, MA 02048 (USA)

•

Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356

•

Email: sales@datel.com • Internet: www.datel.com

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与UNR-3.3/3-D5相关器件

型号	品牌	获取价格	描述	数据表
UNR-3.3/3-D5SM	MURATA	获取价格	DC-DC Regulated Power Supply Module, 1 Output, 9.9W, Hybrid, METAL PACKAGE-9
UNR-3.3/8000-D5	ETC	获取价格	DC-to-DC Voltage Converter
UNR-3.3/8-D12	MURATA	获取价格	DC-DC Regulated Power Supply Module, 1 Output, 26.4W, Hybrid, PACKAGE-6
UNR-3.3/8-D12SM	ETC	获取价格	Analog IC
UNR-3.3/8-D12SM-C	MURATA	获取价格	DC-DC Regulated Power Supply Module, 1 Output, 26.4W, Hybrid, ROHS COMPLIANT, METAL, PACKA
UNR-3.3/8-D12T	ETC	获取价格	Analog IC
UNR-3.3/8-D12T-C	MURATA	获取价格	DC-DC Regulated Power Supply Module, 1 Output, 26.4W, Hybrid, ROHS COMPLIANT, METAL, PACKA
UNR-3.3/8-D5	MURATA	获取价格	DC-DC Regulated Power Supply Module, 1 Output, 26.4W, Hybrid, PACKAGE-6
UNR-3.3/8-D5SM	ETC	获取价格	Analog IC
UNR-3.3/8-D5SM-C	MURATA	获取价格	DC-DC Regulated Power Supply Module, 1 Output, 26.4W, Hybrid, ROHS COMPLIANT, METAL, PACKA

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