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PDF JW5025 Data sheet ( Hoja de datos )
| Número de pieza | JW5025 | |
| Descripción | 3A 20V Synchronous Step-Down Converter | |
| Fabricantes | JoulWatt | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de JW5025 (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
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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
1 page  
JW5025
3A, 20V Synchronous Step-Down Converter
TYPICAL PERFORMANCE CHARACTERISTICS
Vin = 12V, Vo = 3.3V, L = 10µH, Cout = 47µF, TA = +25°C, unless otherwise noted
Steady State Test
VIN=12V, Vout=3.3V
Iout=3A,Iin=0.65A
Startup through Enable
VIN=12V, Vout=3.3V
Iout=2.5A(Resistance load)
Shutdown through Enable
VIN=12V, Vout=3.3V
Iout=2.5A(Resistance load)
Heavy Load Operation
3A LOAD
Medium Load Operation
1.5A LOAD
Light Load Operation
0.4A LOAD
Short Circuit
Protection
Short Circuit
Recovery
Load Transient
→ →1.5A LOAD 3A LOAD 1.5A LOAD
JoulWatt Proprietary Information. Patent Protected.
Unauthorized Photocopy and Duplication Prohibited.
JW5025 Rev.0.93
5
5 Page 
JW5025
Reference 3：
VIN: 4.6V ~ 20 V
VOUT: 2.5V
IOUT: 0~3A
3A, 20V Synchronous Step-Down Converter
JoulWatt Proprietary Information. Patent Protected.
Unauthorized Photocopy and Duplication Prohibited.
JW5025 Rev.0.93
11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet JW5025.PDF ] | |
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