Datasheet > QPO-1-EVAL5

QPO-1-EVAL5

更新时间： 2024-02-10 17:57:08

品牌	Logo	应用领域
VICOR		转换器
页数	文件大小	规格书
4页	452K
描述
QPO-1 Evaluation Board, Mini Foot Print DC-DC Converters

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中文翻译

获取价格

数据手册

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QPO-1-EVAL5 数据手册

P R E L I M I N A RY

™

QuietPower

QPO-1-EVAL5

QPO-1 Evaluation Board, Mini Foot Print DC-DC Converters

Description

Features of the QPO-1

The QPO-1-EVAL5 is designed to allow full testing of

the QPO-1 and its various performance settings to

optimize final system design. The board offers switch

settings for the user to select preset values for the

Rhr, Rsc, and Rsa resistors. Solder pads are available

to mount user-selected values of these components

if required. Please refer to the QPO-1 product data

sheet and the following pages for the proper

application of this board. The EVAL5 accommodates

Vicor’s Mini DC-DC converters with an input up to

72 Vdc.

• >30 dB PARD attenuation, 1 kHz to 500 kHz

• >20 dB PARD attenuation, 50 Hz to 500 Hz

• 10A rating over a 3-30 Vdc operating range

• Supports precise point-of load regulation

• Up to 99% efficiency with power limit protection

• User selectable optimization of attenuation,

power dissipation & transient load response

• Peak detector function optimizes for ripple

amplitude variation automatically

• 1.0 x 1.0 x 0.2” SiP with BGA or LGA mounting

The QPO-1 output ripple attenuator SiP uses active

filtering to reduce output ripple and noise (PARD)

over 20 dB from 50 Hz to 500 kHz. The QPO-1

operates over a voltage range from 3 to 30Vdc and

supports load currents as high as 10A. Output

regulation is maintained with remote sense or trim

adjustment of the power supply. The closed loop

architecture improves transient response and ensures

precise point-of-load regulation.

• Improves transient response of most DC-DC

converters and power supplies

• Reduces required number of output capacitors

to support dynamic loads.

• Patents Pending

Note 1: For off-line supplies 20dB attenuation can be achieved

down to 50Hz with additional capacitance added from the

VREF pin to the REFGND pin.

Other eval boards (see www.picorpower.com) allow

easy evaluation with other DC-DC converters or

power supplies with standard terminations.

Typical Application

QPO-1 Performance

LOAD+

QPO IN

QPO OUT

VOUT+

QPO IN (AC)

Cout

Rsc

SENSE+

QPO-1

SC SET

CESR

VREF

QPO OUT (AC)

Rhr

SENSE-

VOUT-

LOAD-

LOAD CURRENT (DC) 1A/DIV

Figure 1 – SC/Trim supports applications without the use of

remote sense.

Figure 2 – Typical performance with a 3.3 Volt converter.

QPO-1-EVAL5 Data Sheet Rev. 1.1 Page 1 of 4

Picor Corporation • www.picorpower.com

12 3 4

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