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參數(shù)資料
| 型號： | QPO-2L |
| 廠商： | Vicor Corporation |
| 元件分類： | DC/DC變換器 |
| 英文描述： | QPO-2L Low Voltage Output Ripple Attenuator |
| 中文描述： | QPO - 2公升低電壓輸出紋波衰減 |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 290K |
| 代理商： | QPO-2L |
Picor Corporation www.picorpower.com
QPO-2L Data Sheet Rev. 1.1 Page 2 of 12
Absolute Maximum Ratings – Exceeding these parameters may result in permanent damage to the product.
Electrical Characteristics – Parameter limits apply over the operating temp. range unless otherwise noted.
Pins
Parameter
Notes
Min
Max
Units
VAUX to Gnd
Input voltage
Continuous
-0.5
13.2
Vdc
All others to Gnd REFGND
Input voltage
Continuous
-.05
6
Vdc
VAUX to Gnd
Input bias current
50
mAdc
QPOin to QPOout
Input to output current
10 seconds @ 25°C
25
Adc
Package
Power Dissipation
Pd= ILoad x Vhr
4
W
Package
Operating Temperature
PCB to QPO Interface
-40
100
°C
Package
Thermal Resistance
Free Air
50
°C/W
Package
Thermal Resistance
PCB Layout Fig. 12
12
°C/W
Package
Storage Temperature
-40
125
°C
Package
Re-flow Temperature
20 second exposure @
212
°C
Symbol
Parameter
Notes
Min
Max
Units
ILoad
Operating Load Current Range No Internal Current Limit (2)
0.01 (3)
20
Adc
VQPOOUT
Output Voltage Range
Continuous
0.3
5.5
Vdc
VHR
Headroom Voltage Range
See Applications Detail For Setting
75
425
mVdc
IAUX
VAUX input current
10
20
mA
Vtout
Transient Response-step load
Vhr=375mV Cin=200uF
change of 10A@<1A/usec
Iload=1A @ t=0 See figure 2 example
50
mVdc
Vnout
Output Noise
Input PARD=100mVpp 50-500kHz Cvref=25uF
10
mVpp
5
mVrms
Iscout
SC Output Current Accuracy
See Applications Detail For Setting
-2
+2
%
Iscout
SC Output Source Current
Input current from QPOIN to Gnd
10
mA
Note 2: User must protect the load path and limit the steady state load current to be less than the absolute maximum of 20 Amps.
Note 3: User must provide a minimum load current of greater than 10mA at the output of the QPO-2.
GND
ADJUST
PEAK IN
QPO IN
QPO OUT
SC SET
REFGND
VREF
SLOPE
ADJ
1
2
3
4
5
6
7
8
910
11
12
13
14
15
16
17
18
19
20
QPO-2: (bottom view)
Pad Designations
QPO IN
QPO OUT
GND
SC SET
RCLAMP
REFGND
VREF
SLOPE ADJ
11,12,13,14,18
6,7,8,17
1,19,20
5
10
4
3
2
PEAK IN 15
ADJUST 16
VAUX 9
VAUX
RCLAMP
LGA Pattern
Pad Description
GND
Input ground
SLOPE ADJ RSA resistor connection allows setting of
the slope of headroom voltage vs. load (mV/A)
VREF
Input to the active filter, setting the
output voltage at the QPOOUT pins
REFGND
Ground reference for the VREF pin
(critical low noise connection)
SC SET
Rsc resistor connection allows setting of
the SC/trim current applied to the converter
trim input.
QPOOUT
Output pins
VAUX
Input bias voltage
RCLAMP
External resistor to program VREF quick-charge
level at start-up
QPOIN
Input pins (critical thermal path to remove
heat from the package, see PCB suggested
layout Fig.13)
PEAK IN
Ripple Peak Detector Input
ADJUST
A current source that mirrors the current
through RSC and drives a converter’s SC/TRIM pin.
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