ncp3126 ON Semiconductor, ncp3126 Datasheet - Page 3

• Manufacturer Part Number: ncp3126
• Description: Ncp3126 3 A Synchronous Pwm Switching Converter
• Manufacturer: ON Semiconductor

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. The maximum package power dissipation limit must not be exceeded.
2. The value of qJA is measured with the device mounted on 1 in
3. The value of qJA is measured with the device mounted on minimum footprint, in a still air environment with T
4. 60−180 seconds minimum above 237°C.
Table 2. MAXIMUM RATINGS
Main Supply Voltage Input
Bootstrap Supply Voltage vs GND
Bootstrap Supply Voltage vs Ground (spikes ≤ 50 ns)
Bootstrap Pin Voltage vs V
High Side Switch Max DC Current
V
Switching Node Voltage Excursion (200 mA)
Switch Pin voltage (spikes < 50 ns)
FB Pin Voltage
COMP/DISABLE
Low Side Driver Pin Voltage
Low Side Driver Pin Voltage (spikes v 200 ns)
Thermal Resistance, Junction−to−Ambient
Thermal Resistance, Junction−to−Case
Storage Temperature Range
Junction Operating Temperature
Lead Temperature Soldering (10 sec):
Reflow (SMD styles only) Pb−Free
value in any given application depends on the user’s specific board design.
application depends on the user’s specific board design.
SW
Pin Voltage
SW
Rating
Rating
(Note 2)
(Note 3)
http://onsemi.com
2
FR−4 board with 1 oz. copper, in a still air environment with T
3
VCOMP/DIS
VISET Spike
VBST spike
VBST−V
Symbol
Symbol
V
VISET
VBST
V
IV
R
R
V
SWLIM
VFB
T
V
RF
SWtr
T
SW
qJA
qJC
stg
SW
IN
J
SW
−0.3
−0.3
−5.0
−0.3
−0.3
−2.0
−5.0
−0.3
−0.3
−0.3
Min
−2
0
−55 to 150
−40 to 125
260 peak
Rating
A
183
170
110
= 25°C. The value in any given
5.5 < V
5.5 < V
15 < V
15 < V
Max
3.0
15
15
35
15
30
35
40
CC
CC
CC
CC
A
= 25°C. The
°C/W
°C/W
Unit
Unit
°C
°C
°C
V
V
V
V
A
V
V
V
V
V
V
V