Datasheet > QPO-2LZ-01

QPO-2LZ-01

更新时间： 2024-11-21 19:55:51

品牌	Logo	应用领域
VICOR		衰减器射频微波
页数	文件大小	规格书
11页	361K
描述
Variable Attenuator, ROHS COMPLIANT, SIP-16

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技术参数
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QPO-2LZ-01 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	Reach Compliance Code：	compliant
风险等级：	8.6	JESD-609代码：	e3/e4
射频/微波设备类型：	VARIABLE ATTENUATOR	端子面层：	MATTE TIN OVER NICKEL/NICKEL PALLADIUM GOLD
Base Number Matches：	1

QPO-2LZ-01 数据手册

QPO-2

QUIETPOWER^®

QPO-2 Low Voltage Output Ripple Attenuator

Description

Features of the QPO-2

The QPO-2 output ripple attenuator SiP uses active

filtering to reduce supply output ripple and noise (PARD)

by over 30 dB from 1 kHz to 500 kHz. The QPO-2 is biased

through the VAUX input and filters an input voltage

range of 0.3 Vdc to 5.5 Vdc while supporting load currents

as high as 20 A. The VAUX input range is 7 V to 12 V with

a minimum required difference between VAUX and QPO

OUT of 7 V. Output regulation is maintained by using

either the remote sense or the trim adjustment of the

power supply. The product can be used in an open loop

configuration when ripple and noise reduction are the

main objective and load regulation is not as critical. The

QPO-2 architecture improves transient response and

ensures quiet point-of-load regulation when used with

most switching power supplies. The performance

waveform in figure 2 is an example of the ripple

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

• >20 dB PARD attenuation, 50 Hz to 500 Hz (1)

• 20 A rating over a 0.3-5.5 Vdc operating range

• Supports precise point-of load regulation

• 90-95% efficiency with load vs. headroom trim

• User selectable performance optimization of the

attenuation, power dissipation & transient load

response

• Peak detector function optimizes headroom for

ripple amplitude variation automatically

• 25 x 25 x 4.5 mm SiP (System-in-a-Package)

• Low profile LGA package

reduction and transient load improvement the QPO-2 can

provide using a 3.3V brick style converter.

• Closed loop control improves transient response

of most DC-DC converters and power supplies

• Reduces required number of output capacitors to

support dynamic loads.

Applications

•

Distributed Point of Load Power Systems

Sensors Requiring Low Noise Power

Medical Instrumentation

• Patents Pending

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

down to 50 Hz with additional capacitance added from the VREF

pin to REFGND.

VAUX

QPO IN (AC)

VAUX

LOAD+

QPO IN

QPO OUT

VOUT+

PEAK IN

CIN*

SENSE+

Rsc

RCP

QPO-2L

RCLAMP

ADJUST

RSL

SC SET

+TRIM

QPO OUT (AC)

CSC

RSA

LOAD CURRENT

SENSE-

VOUT-

RHR

*Optional

LOAD-

Figure 1 – ADJUST/Trim supports applications that don’t

Figure 2 – Typical performance with a 3.3 Volt converter, showing

require remote sense.

1 to 10 A load step.

Picor Corporation • www.picorpower.com

QPO-2 Data Sheet Rev. 1.6 Page 1 of 11

12 3 4 5 6 7...11

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