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JoulWatt |
FEATURES
z 3.6V to 40V operating input range
2A output current
z Up to 94% efficiency
z High efficiency (>78%) at light load
z Internal Soft-Start
z Adjustable switching frequency
z Input under voltage lockout
z Available in thermally enhanced ESOP8
package
z Start-up current run-away protection
z Short circuit protection
z Thermal protection
2A, 40V Synchronous Rectified
Step-Down Converter
under voltage lockout.
The JW5015 is available in 8-pin ESOP package,
which provides a compact solution with minimal
external components. The package has an
exposed pad for low thermal resistance.
APPLICATIONS
z Distributed Power Systems
z Networking Systems
z FPGA, DSP, ASIC Power Supplies
z Green Electronics/ Appliances
z Notebook Computers
PIN CONFIGURATION
DESCRIPTION
The JW5015 is a current mode monolithic buck
switching regulator. Operating with an input range
of 3.6-40V, the JW5015 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 JW5015 guarantees robustness with
short-circuit protection, thermal protection,
start-up current run-away protection, and input
TOP VIEW
SW 1
8 VIN
BST 2
VD 3
9 GND
7 EN
6 RT
FB 4
5 COMP
ESOP 8
EXPOSED PAD(PIN 9) IS GND, MUST BE
SOLDERED TO PCB
JW5015
REV: 0.1 1 / 6
JW5015
ORDER INFORMATION
PART MARKING
JW5015
PACKAGE DESCRIPTION
ESOP8
TYPICAL APPLICATION
TEMPERATURE RANGE
-40°C to +85°C
5V/3A Step Down Regulators
100nF
Vin
3.6V TO
40V
100k
10uF
VIN BST
SW
EN JW5015 FB
VD
10µH
530k
Vout
5V/3A
GND RT COMP
180k
50k
470p
100k
47µF
2.2µF
Efficiency vs Load
Current (Vout = 5V)
96.00
94.00
92.00
90.00
88.00
86.00
84.00
82.00
80.00
78.00
76.00
0
Vin=12V
Vin=24V
0.5 1 1.5
LOAD CURRENT(A)
2
ABSOLUTE MAXIMUM RATING
Item
VIN, EN
SW
BST
All other pins
Junction Temperature
Lead Temperature
Storage Temperature
Extreme value
-0.3V to +40V
-0.3V to +40V
SW-0.3V to SW+5V
-0.3V to 6V
125 ºC
260 ºC
-65 ºC to +150 ºC
RECOMMENDED OPERATING CONDITIONS
Item
Input Voltage VIN
Output voltage Vout
Operating Junction Temperature (TJ)
Extreme value
3.6V to 40V
0.8V to 37V
-40 ºC to +85 ºC
JW5015
REV: 0.1 2 / 6
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