NCP5173 PDF даташит
Спецификация NCP5173 изготовлена «ON Semiconductor» и имеет функцию, называемую «Boost Regulator». |
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Детали детали
Номер произв | NCP5173 |
Описание | Boost Regulator |
Производители | ON Semiconductor |
логотип |
18 Pages
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NCP5173
1.5 A 560 kHz−1.0 MHz
Boost Regulator
The NCP5173 is a switching regulator with a high efficiency, 1.5 A
integrated switch. It runs at a base frequency of 560 kHz and can be
synchronized to an external clock up to 1.0 MHz. This part operates
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 IC uses 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.
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
• Low 1.0 mm Maximum Profile
• Shut Down Current: 50 mA Maximum
Applications
• Flat Panel Displays
• Systems Requiring Low Profile Components
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5x6 QFN
MN SUFFIX
CASE 505AC
MARKING
DIAGRAM
1
NCP5173
AWLYYWW
NCP5173 = Specific Device Code
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
NOTE: Thermal pad is electrically isolated from IC
and all pins.
ORDERING INFORMATION
Device
NCP5173MN
NCP5173MNR2
Package
QFN
QFN
Shipping†
95 Units/Rail
2500 Tape & Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2004
September, 2004 − Rev. 1
1
Publication Order Number:
NCP5173/D
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C1
0.01 mF
SS
3.3 V
R1
5k
NCP5173
R2
3.72 k
1
VC
2 FB
3
Test
4
SS
VSW 8
PGND 7
AGND 6
VCC 5
D1
MBRS120T3
VOUT
5V
L1
22 mH
+ C3
22 mF
R3
1.28 k
+
C2
22 mF
Figure 1. Applications Diagram
MAXIMUM RATINGS*
Rating
Value
Unit
Junction Temperature Range, TJ
Storage Temperature Range, TSTORAGE
Package Thermal Resistance: Junction−to−Ambient, RqJA
Lead Temperature Soldering: Reflow (Note 1)
−40 to +150
−65 to +150
35
230 Peak
°C
°C
°C/W
°C
ESD, Human Body Model
1.2 kV
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
1. 60 second maximum above 183°C.
*The maximum package power dissipation must be observed.
MAXIMUM RATINGS
Pin Name
IC Power Input
Shutdown/Sync
Loop Compensation
Voltage Feedback Input
Test Pin
Power Ground
Analog Ground
Switch Input
Pin Symbol
VCC
SS
VC
FB
Test
PGND
AGND
VSW
VMAX
30 V
30 V
6.0 V
10 V
6.0 V
0.3 V
0V
40 V
VMIN
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
0V
−0.3 V
ISOURCE
N/A
1.0 mA
10 mA
1.0 mA
1.0 mA
4A
N/A
10 mA
ISINK
200 mA
1.0 mA
10 mA
1.0 mA
1.0 mA
10 mA
10 mA
3.0 A
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NCP5173
ELECTRICAL CHARACTERISTICS (2.7 V < VCC < 30 V; 0°C < TJ < 125°C; for all specifications unless otherwise stated.)
Characteristic
Test Conditions
Min Typ Max
Positive and Negative Error Amplifiers
FB Reference Voltage
FB Input Current
FB Reference Voltage Line Regulation
Error Amp Transconductance
Error Amp Gain
VC tied to FB; measure at FB
FB = VREF
VC = FB
IVC = "25 mA
(Note 2)
1.246
−1.0
−
300
200
1.276
0.1
0.01
550
500
1.300
1.0
0.03
800
−
VC Source Current
VC Sink Current
VC High Clamp Voltage
VC Low Clamp Voltage
VC Threshold
Oscillator
FB = 1.0 V or NFB = −1.9 V, VC = 1.25 V
25
50
90
FB = 1.5 V or NFB = −3.1 V, VC = 1.25 V
200
625 1500
FB = 1.0 V or NFB = −1.9 V;
VC sources 25 mA
1.5 1.7 1.9
FB = 1.5 V or NFB = −3.1 V, VC sinks 25 mA
0.25
0.50
0.65
Reduce VC from 1.5 V until switching stops
0.75
1.05
1.30
Base Operating Frequency
FB = 1.0 V
460 560 620
Reduced Operating Frequency
FB = 0 V
60 104 160
Maximum Duty Cycle
−
82 90
−
FB Frequency Shift Threshold
Frequency drops to reduced operating
frequency
0.36 0.40 0.44
Sync/Shutdown
Sync Range
− 640 − 1000
Sync Pulse Transition Threshold
Rise time = 20 ns
2.5 −
−
SS Bias Current
SS = 0 V
SS = 3.0 V
−15 −3.0
−
− 3.0 8.0
Shutdown Threshold
− 0.50 0.85 1.20
Shutdown Delay
Power Switch
Switch Saturation Voltage
Switch Current Limit
2.7 V ≤ VCC ≤ 12 V
12 V < VCC ≤ 30 V
ISWITCH = 1.5 A (Note 2)
ISWITCH = 1.0 A, 0°C t TJ ≤ 85°C
ISWITCH = 1.0 A, −40°C ≤ TJ t 0°C
ISWITCH = 10 mA
50% Duty cycle (Note 2)
80% Duty cycle (Note 2)
12 80 350
12 36 200
− 0.8 1.4
− 0.55 −
− 0.75 −
− 0.09 0.45
1.6 1.9 2.4
1.5 1.7 2.2
Minimum Pulse Width
DICC/ DIVSW
FB = 0 V, ISW = 4.0 A (Note 2)
200 250 300
2.7 V ≤ VCC ≤ 12 V, 10 mA ≤ ISW ≤ 1.0 A
12 V < VCC ≤ 30 V, 10 mA ≤ ISW ≤ 1.0 A
2.7 V ≤ VCC ≤ 12 V, 10 mA ≤ ISW ≤ 1.5 A
(Note 2)
12 V < VCC ≤ 30 V, 10 mA ≤ ISW ≤ 1.5 A
(Note 2)
−
−
−
−
10 30
− 100
17 30
− 100
Switch Leakage
VSW = 40 V, VCC = 0V
2. Guaranteed by design, not 100% tested in production.
− 2.0 100
Unit
V
mA
%/V
mMho
V/V
mA
mA
V
V
V
kHz
kHz
%
V
kHz
V
mA
V
ms
V
A
ns
mA/A
mA
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NCP5173 | Boost Regulator | ON Semiconductor |
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