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VP2128 の電気的特性と機能

VP2128のメーカーはViva Electronicsです、この部品の機能は「Synchronous-Rectified Buck Converter」です。


製品の詳細 ( Datasheet PDF )

部品番号 VP2128
部品説明 Synchronous-Rectified Buck Converter
メーカ Viva Electronics
ロゴ Viva Electronics ロゴ 




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VP2128 Datasheet, VP2128 PDF,ピン配置, 機能
VP2128
2A, 18V, Synchronous-Rectified Buck Converter
Description
Features
The VP2128 is an efficiency and low-cost buck 4.5V to 18V Input Voltage Range
converter with integrated low RDS(ON) high-side Adjustable Output from 0.922V to 16V
150mΩ and low-side 130mΩ MOSFET 2A Output Current
switches. It is capable of delivering 2A output Integrated 150mΩ/130mΩ MOSFET Switches
current over a wide range of supplying voltage 0.922V Voltage Reference with 2% Accuracy
from 4.5V to 18V. With a simple voltage divider, 93% Conversion Efficiency at 5V/1A Output
the output voltage is easily adjustable from Adapted Current Mode PWM Operation
0.922V to 16V.
Fixed 340kHz Switching Frequency
Other features such as programmable Integrated Boot-Diode
soft-start, integrated Boot-Diode, total Programmable Soft-Start Function
fault-free protection and 93% conversion Over Voltage and Under Voltage Protection
efficiency at 5V/1A output make VP2128 Over Temperature and Over Current Limitation
ideally to be used in portable consumer RoHS 2.0 compliant SO-8P Green Package with
electronics.
Exposed Pad
The VP2128 is available in popular SO-8P green
package with exposed pad.
Applications
Set-Up Box
Networking Device
MID/Netbook/Pad-Device
LCD Monitor/ LCD TV
Typical Application
VP2128 Rev A.01
-1-
2013/01/03
Visit http://www.viva-elec.com.tw for our products
Free Datasheet http://www.datasheet4u.net/

1 Page





VP2128 pdf, ピン配列
VP2128
Pin No. Pin I/O/P
Function Description
Chip Enable. Pull EN high to enable the converter, pull it low to turn
7 EN I
it off. Pull up with a 100kΩ resistor to start it up automatically.
Soft-Start Control. SS controls the soft-start time. A 100nF
8 SS - capacitor sets the soft-start time to 15ms typically. Leave it floating
would make soft-start time become very short.
Absolutely Maximum Ratings
Over operating free-air temperature range, unless otherwise specified (* 1)
Symbol
Parameter
VIN
VLX
VBS
VIN(COMP, EN, FB, SS)
TJ
TSTG
Supply voltage range
Switch voltage range
High side gate drive voltage range
Low voltage input range
Operating junction temperature range
Storage temperature range
Electrostatic discharge
Human body model
Limit
-0.3 to 20
-1 to VIN+0.3
VLX-0.3 to VLX+6
-0.3 to 6
-40 to +160
-65 to 150
±2
Unit
V
V
V
V
oC
oC
kV
Electrostatic discharge
Machine model
±200
V
θJC
Thermal Resistance (Junction to Case)
10 oC/W
θJA
Thermal Resistance (Junction to Air)
50 oC/W
( *1): Stress beyond those listed at “absolute maximum rating” table may cause permanent damage to the device. These are
stress rating ONLY. For functional operation are strongly recommend follow up “recommended operation conditions” table.
Recommended Operating Conditions
Symbol
Parameter
VIN
VOUT
TA
Supply voltage
Output voltage
Operating free-air temperature range
Specification
Min Max
4.5 18
0.922
16
-40 85
Unit
V
V
oC
VP2128 Rev A.01
-3-
2013/01/03
Visit http://www.viva-elec.com.tw for our products
Free Datasheet http://www.datasheet4u.net/


3Pages


VP2128 電子部品, 半導体
VP2128
VOUT (1V/div)
IL (2A/div)
Time: 25µs/div
Figure 9. Light Load (no load) Short
Circuit Recovery
VOUT (100mV/div)
IL (500mA/div)
Time: 100µs/div
Figure 11. Load Transient
Application Information
VOUT (1V/div)
IL (2A/div)
Time: 100µs/div
Figure 10. Light Load (no load) Short
Circuit Protection
Figure 12. Efficiency
Figure 13. VP2128 typical application
VP2128 Rev A.01
-6-
2013/01/03
Visit http://www.viva-elec.com.tw for our products
Free Datasheet http://www.datasheet4u.net/

6 Page



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部品番号部品説明メーカ
VP2128

Synchronous-Rectified Buck Converter

Viva Electronics
Viva Electronics


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