Step-Down Converter. JW5022 Datasheet

JW5022 Converter. Datasheet pdf. Equivalent

JW5022 Datasheet
Recommendation JW5022 Datasheet
Part JW5022
Description 2A 20V Synchronous Step-Down Converter
Feature JW5022; Parameters Subject to Change Without Notice FEATURES 4.6V to 20V operating input range 2A output cur.
Manufacture JoulWatt
Datasheet
Download JW5022 Datasheet




JoulWatt JW5022
Parameters Subject to Change Without Notice
FEATURES
4.6V to 20V operating input range
2A 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 SOP8 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
JW5022
2A, 20V Synchronous
Step-Down Converter
DESCRIPTION
The JW5022 is a current mode monolithic buck
switching regulator. Operating with an input range
of 4.6V~20V, the JW5022 delivers 2A 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 JW5022 guarantees robustness with
short-circuit protection, thermal protection,
start-up current run-away protection, and input
under voltage lockout.
The JW5022 is available in an 8-pin SOP
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.
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JoulWatt Proprietary Information. Patent Protected.
Unauthorized Photocopy and Duplication Prohibited.
JW5022 Rev.0.91
1



JoulWatt JW5022
JW5022
2A, 20V Synchronous Step-Down Converter
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PACKAGE
JW5022SOPB#PBF JW5022SOPB#TRPBF
SOP8
JWXXXXPPPP#TRPBF
Pb Free
Tape and ReelIf “TR” is not shown, it means Tube
Package Code
Part Number
TOP MARKING
JW5022
JUNCTION
TEMPERATURE RANGE
40 ºC to 150 ºC
PIN CONFIGURATION
TOP View
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............... 0.8V to 17V
Operating Junction Temperature... -40ºC to125ºC
THERMAL RESISTANCE4) θJA θJc
ESOP8 ..........................90....45..ºC /W
Note
1) Exceeding these ratings may damage the device.
2) The JW5022 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 JW5022 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.
JW5022 Rev.0.91
2



JoulWatt JW5022
JW5022
2A, 20V Synchronous Step-Down Converter
ELECTRICAL CHARATERISTICS
VIN = 12V, TA = 25ºC, unless otherwise stated.
Item
Symbol
Condition
VIN Undervoltage Lockout
Thershold
VIN_MIN
VIN falling
VIN Undervoltage Lockout
Hysteresis
VIN_MIN_HYST
VIN rising
Shutdown Supply Current
ISD
VEN=0V
Supply Current
IQ VEN=5V, VFB=2V
Feedback Voltage
VFB 3.6V<VVIN<20V
Top Switch Resistance
RDS(ON)T
Bottom Switch Resistance
RDS(ON)B
Top Switch Leakage Current
ILEAK_TOP
Bottom
Current
Switch
Leakage
ILEAK_BOT
VIN=20V, VEN=0V,
VSW=0V
VIN= VSW =20V, VEN=0V,
Top Switch Current Limit
ILIM_TOP
Minimum Duty Cycle
Switch Frequency
fSW
Minimum On Time
TON_MIN
Minimum Off Time
TOFF_MIN
VFB=0V
EN shut down threshold
VEN_TH
voltage
VEN falling, FB=0V
EN shut down hysteresis
VEN_HYST
VEN rising, FB=0V
Soft-Start Current
ISS SS=0V
Thermal Shutdown
TTSD
Min.
Typ.
3.6
Max. Units
V
650 mV
1 µA
55 µA
0.923
V
185 mΩ
100 mΩ
0.5 uA
0.5 uA
2.9 A
340 kHz
120 ns
120 ns
1.2 V
80 mV
9 µA
140
JoulWatt Proprietary Information. Patent Protected.
Unauthorized Photocopy and Duplication Prohibited.
JW5022 Rev.0.91
3







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