鈻?/div>
Optional Shutdown & Trim Pins
DESCRIPTION
The NGA series is a range of low profile
DC/DC converters offering a single regulated
output over a wide input voltage range. All
parts deliver the full output power up to 85擄C
without the need for external heatsinking
while the synchronus rectification design
yields excellent efficiencies up to 95%.
Continuous operation
4.75
1.8,2.5 & 3.3V output types
Continuous operation NGA10S15050S
7.0
Continuous operation NGA10S15050SE Variable
3
1.8V output types
Reflected Ripple 2.5V output types
Current
3.3V output types
5.0V output types
Voltage Range
15
15
15
29
49
48
99
28
28
28
VDC
mA p-p
OUTPUT CHARACTERISTICS
1
Parameter
Conditions
MIN
TYP
MAX
Units
Rated Power
Voltage Set
Point Accuracy
Line Regulation
T
A
= 鈥?0擄C to 85擄C
鹵1.5
0.2
1.5
40
10
鹵5.0
0.5
2.0
70
W
%
%/%
%
mVp-p
Low line to high line,
with external input/output capacitors,
refer to test circuit
10% load to 100% load,
Load Regulation with external input/output capacitors,
refer to test circuit
BW = DC to 20MHz
Ripple & Noise With external input/output capacitors,
refer to test circuit
ABSOLUTE MAXIMUM RATINGS
Short circuit protection
Internal power dissipation
Lead temperature 1.5mm from case for 10 seconds
Input Voltage V
IN
Minimum load
Output Trim Control
Shutdown Control
Continuous
1.1W
300擄C
28V
0%
0V to +5V relative to 0V
鈥?.3V to +28V relative to 0V
ENVIRONMENTAL
1
Parameter
Conditions
MIN
TYP
MAX
Units
Operation
Storage
PCB Temperature above Ambient
鈥?40
鈥?50
40
85
125
擄C
擄C
擄C
TERMINOLOGY
TRANSIENT RESPONSE
Time for V
OUT
to be within 1% of V
NOM
where V
NOM
=
V
OUT
25% +V
OUT
75%
2
OVER-SHOOT/UNDER-SHOOT
MAX deviation from final steady state output.
START DELAY
Typical rise time (ms) after control pin high with valid input.
1 Specifications typical at T
A
=25擄C, nominal input voltage and rated output current unless otherwise specified.
2. If optional VADJ and SD pin are required (as indicated in the mechanical dimensions diagram) suffix the part
number with an E when ordering, i.e. NGA10S15050SE.
3. Supply voltage should exceed output voltage by 1.45V.
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