파트넘버.co.kr JW5025 데이터시트 PDF


JW5025 반도체 회로 부품 판매점

3A 20V Synchronous Step-Down Converter



JoulWatt 로고
JoulWatt
JW5025 데이터시트, 핀배열, 회로
Parameters Subject to Change Without Notice
FEATURES
4.6V to 20V operating input range
3A output current
Up to 94% efficiency
High efficiency (>85%) at light load
Adjustable Soft-Start
Fixed 340kHz Switching frequency
Input under voltage lockout
Available in ESOP8 package
Start-up current run-away protection
Short circuit protection
Thermal protection
APPLICATIONS
Distributed Power Systems
Networking Systems
FPGA, DSP, ASIC Power Supplies
Green Electronics/ Appliances
Notebook Computers
TYPICAL APPLICATION
JW5025
3A, 20V Synchronous
Step-Down Converter
DESCRIPTION
The JW5025 is a current mode monolithic buck
switching regulator. Operating with an input range
of 4.6V~20V, the JW5025 delivers 3A of
continuous output current with two integrated
N-Channel MOSFETs. The internal synchronous
power switches provide high efficiency without
the use of an external Schottky diode. At light
loads, regulators operate in low frequency to
maintain high efficiency and low output ripple.
Current mode control provides tight load transient
response and cycle-by-cycle current limit.
The JW5025 guarantees robustness with
short-circuit protection, thermal protection,
start-up current run-away protection, and input
under voltage lockout.
The JW5025 is available in an 8-pin ESOP
package, which provides a compact solution with
minimal external components.
Company’s Logo is Protected, “JW ” and “JOULWATT” are Registered
Trademarks of JoulWatt technology Inc.
Vin
4.6~20V
C1
10uF
3.3V/3A Step Down Regulator
C3 100nF
VIN BST
SW
μ10 H
100k
R1 EN JW5025 FB
R2 26.1k
GND SS
C5
μ0.1 F
COMP
R4
33k
C4
220p
R3
10k
Vout
3.3V/3A
C2
μ22 F
Efficiency vs Load Current
94
92 Vout=5V
90
88 Vout=3.3V
86
84
82
Vin=12V
80
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3
LOAD CURRENT(A)
JoulWatt Proprietary Information. Patent Protected.
Unauthorized Photocopy and Duplication Prohibited.
JW5025 Rev.0.93
1


JW5025 데이터시트, 핀배열, 회로
JW5025
3A, 20V Synchronous Step-Down Converter
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL
PACKAGE
JW5025ESOP#PBF JW5025ESOP#TRPBF
eSOP8
JWXXXXPPPP#TRPBF
Pb Free
( )Tape and Reel If “TR” is not shown, it means Tube
Package Code
Part Number
TOP MARKING
JW5025
JUNCTION
TEMPERATURE RANGE
40ºC to 150ºC
PIN CONFIGURATION
BST 1
VIN 2
SW 3
GND 4
TOP VIEW
GND
ESOP8
8 SS
7 EN
6 COMP
5 FB
ABSOLUTE MAXIMUM RATING1)
VIN, EN, SW Pin .................. -0.3V to 22V
BST Pin ................... SW-0.3V to SW+5V
All other Pins .................... -0.3V to 6V
Junction Temperature2) 3).................150ºC
Lead Temperature ...................260 ºC
Storage Temperature .......-65 ºC to +150 ºC
RECOMMENDED OPERATING CONDITIONS
Input Voltage VIN ..................4.6V to 20V
Output Voltage Vout............... 0.923V to 17V
Operating Junction Temperature...-40ºC to 125ºC
THERMAL RESISTANCE4) θJA θJc
ESOP8 ..........................50....10..ºC /W
Note
1) Exceeding these ratings may damage the device.
2) The JW5025 guarantees robust performance from
-40°C to 150°C junction temperature. The junction
temperature range specification is assured by
design, characterization and correlation with
statistical process controls.
3) The JW5025 includes thermal protection that is
intended to protect the device in overload
conditions. Thermal protection is active when
junction temperature exceeds the maximum
operating junction temperature. Continuous
operation over the specified absolute maximum
operating junction temperature may damage the
device.
4) Measured on JESD51-7, 4-layer PCB.
JoulWatt Proprietary Information. Patent Protected.
Unauthorized Photocopy and Duplication Prohibited.
JW5025 Rev.0.93
2




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JW5025 converter

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