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NCV5173EDR2G

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19
© Semiconductor Components Industries, LLC, 2016
February, 2016 − Rev. 6
1 Publication Order Number:
NCV5171/D
NCV5171, NCV5173
1.5 A 280 kHz/560 kHz
Boost Regulators
The NCV5171/73 products are 280 kHz/560 kHz switching
regulators with a high efficiency, 1.5 A integrated switch. The parts
operate over a wide input voltage range, from 2.7 V to 30 V. The
flexibility of the design allows the chip to operate in most power
supply configurations, including boost, flyback, forward, inverting,
and SEPIC. The ICs utilize current mode architecture, which allows
excellent load and line regulation, as well as a practical means for
limiting current. Combining high frequency operation with a highly
integrated regulator circuit results in an extremely compact power
supply solution. The circuit design includes provisions for features
such as frequency synchronization, shutdown, and feedback controls
for positive voltage regulation. These parts are pin−to−pin compatible
with LT1372/1373.
Features
• Integrated Power Switch: 1.5 A Guaranteed
• Wide Input Range: 2.7 V to 30 V
• High Frequency Allows for Small Components
• Minimum External Components
• Easy External Synchronization
• Built in Overcurrent Protection
• Frequency Foldback Reduces Component Stress During an
Overcurrent Condition
• Thermal Shutdown with Hysteresis
• Shut Down Current: 50 mA Maximum
• Pin−to−Pin Compatible with LT1372/1373
• NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements
♦ −40°C to 125°C
• These are Pb−Free Devices
517xE = Specific Device Code
x = 1 or 3
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb−Free Package
SOIC−8
D SUFFIX
CASE 751
V
CC
SS
1
517xE
ALYW
G
8
AGNDTest
PGNDFB
V
SW
V
C
MARKING DIAGRAM AND
PIN CONNECTIONS
www.
onsemi.com
Device Package Shipping
†
ORDERING INFORMATION
NCV5171EDR2G SOIC−8
(Pb−Free)
2500 Units / Box
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
s
Brochure, BRD8011/D.
NCV5173EDR2G SOIC−8
(Pb−Free)
2500 Units / Box
NCV5171, NCV5173
www.onsemi.com
2
+
NCV5171/73
1
2
3
45
6
7
8
V
OUT
L1
5 V
C3
22 mF
V
C
FB
Test
SS
V
CC
AGND
PGND
V
SW
+
MBRS120T3
D1
22 mH
C2
22 mF
R3
1.28 k
3.72 k
R2
C1
SS
3.3 V
R1
5 k
0.01 mF
Figure 1. Applications Diagram
MAXIMUM RATINGS
Rating Value Unit
Junction Temperature Range, T
J
−40 to +150 °C
Storage Temperature Range, T
STORAGE
−65 to +150 °C
Package Thermal Resistance
Junction−to−Case, R
q
JC
Junction−to−Ambient, R
q
JA
45
165
°C/W
Lead Temperature Soldering: Reflow (Note 1) 260 Peak
(Note 1)
°C
ESD, Human Body Model 1.2 kV
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. 60−180 seconds minimum above 237°C.
MAXIMUM RATINGS
Pin Name Pin Symbol V
MAX
V
MIN
I
SOURCE
I
SINK
IC Power Input V
CC
35 V −0.3 V N/A 200 mA
Shutdown/Sync SS 30 V −0.3 V 1.0 mA 1.0 mA
Loop Compensation V
C
6.0 V −0.3 V 10 mA 10 mA
Voltage Feedback Input FB 10 V −0.3 V 1.0 mA 1.0 mA
Test Pin Test 6.0 V −0.3 V 1.0 mA 1.0 mA
Power Ground PGND 0.3 V −0.3 V 4 A 10 mA
Analog Ground AGND 0 V 0 V N/A 10 mA
Switch Input V
SW
40 V −0.3 V 10 mA 3.0 A
NCV5171, NCV5173
www.onsemi.com
3
ELECTRICAL CHARACTERISTICS (2.7 V< V
CC
< 30 V; −40°C < T
J
< 125°C unless otherwise stated)
Characteristic
Test Conditions Min Typ Max Unit
Positive and Negative Error Amplifiers
FB Reference Voltage
V
C
tied to FB; measure at FB 1.246 1.276 1.300 V
FB Input Current FB = V
REF
−1.0 0.1 1.0
mA
FB Reference Voltage Line Regulation V
C
= FB − 0.01 0.03 %/V
Positive Error Amp Transconductance
I
VC
= ± 25 mA
300 550 800
mMho
Positive Error Amp Gain (Note 2) 200 500 − V/V
V
C
Source Current FB = 1.0 V, V
C
= 1.25 V 25 50 90
mA
V
C
Sink Current FB = 1.5 V, V
C
= 1.25 V 200 625 1500
mA
V
C
High Clamp Voltage
FB = 1.0 V; V
C
sources 25 mA
1.5 1.7 1.9 V
V
C
Low Clamp Voltage
FB = 1.5 V; V
C
sinks 25 mA
0.25 0.50 0.65 V
V
C
Threshold Reduce V
C
from 1.5 V until switching stops 0.6 1.05 1.30 V
Oscillator
Base Operating Frequency
NCV5171, FB = 1 V 230 280 310 kHz
Base Operating Frequency NCV5173, FB = 1 V 460 560 620 kHz
Reduced Operating Frequency NCV5171, FB = 0 V 30 52 120 kHz
Reduced Operating Frequency NCV5173, FB = 0 V 60 104 160 kHz
Maximum Duty Cycle NCV5171 90 94 − %
Maximum Duty Cycle NCV5173 82 90 − %
FB Frequency Shift Threshold Frequency drops to reduced operating frequency 0.36 0.40 0.44 V
Sync/ Shutdown
Sync Range NCV5171 320 − 500 kHz
Sync Range NCV5173 640 − 1000 kHz
Sync Pulse Transition Threshold Rise time = 20 ns 2.5 − − V
SS Bias Current SS = 0 V
SS = 3.0 V
−15
−
−3.0
3.0
−
8.0
mA
Shutdown Threshold − 0.40 0.85 1.20 V
Shutdown Delay 2.7 V ≤ V
CC
≤ 12 V
12 V < V
CC
≤ 30 V
12
12
80
36
350
200
ms
Power Switch
Switch Saturation Voltage
I
SWITCH
= 1.5 A, (Note 2)
I
SWITCH
= 1.0 A, 0°C ≤ T
J
≤ 85°C
I
SWITCH
= 1.0 A, −40°C ≤ T
J
≤ 0°C
I
SWITCH
= 10 mA
−
−
−
−
0.8
0.55
0.75
0.09
1.4
−
−
0.45
V
Switch Current Limit 50% duty cycle, (Note 2)
80% duty cycle, (Note 2)
1.6
1.5
1.9
1.7
2.4
2.2
A
Minimum Pulse Width FB = 0 V, I
SW
= 4.0 A, (Note 2) 200 250 300 ns
DI
CC
/ DIV
SW
2.7 V ≤ V
CC
≤ 12 V, 10 mA ≤ I
SW
≤ 1.0 A
12 V < V
CC
≤ 30 V, 10 mA ≤ I
SW
≤ 1.0 A
2.7 V ≤ V
CC
≤ 12 V, 10 mA ≤ I
SW
≤ 1.5 A, (Note 2)
12 V < V
CC
≤ 30 V, 10 mA ≤ I
SW
≤ 1.5 A, (Note 2)
−
−
−
−
10
−
17
−
30
100
30
100
mA/A
Switch Leakage V
SW
= 40 V, V
CC
= 0V − 2.0 100
mA
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
2. Guaranteed by design, not 100% tested in production.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19

NCV5173EDR2G

Mfr. #:
Buy NCV5173EDR2G
Manufacturer:
ON Semiconductor
Description:
Switching Voltage Regulators 1.5A 560KHZ BOOST RG
Lifecycle:
New from this manufacturer.
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