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PDF NCV8800 Data sheet ( Hoja de datos )
| Número de pieza | NCV8800 | |
| Descripción | Synchronous Buck Regulator | |
| Fabricantes | ON Semiconductor | |
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NCV8800 Series
Synchronous Buck Regulator
with 1.0 Amp Switch
The NCV8800 is an automotive synchronous step−down buck
regulator. This part provides an efficient step−down voltage compared
to linear regulators. The NCV8800 uses very few external components
allowing for maximum use of printed circuit board space.
Features
• Output Voltage Options: 2.6 V, 3.3 V, 5.0 V, 7.5 V
• ±3.0% Output
• 3.5 V Operation
• AUXILIARY Hold Up Pin (for Cranking Conditions)
• On−Chip Switching Power Devices (0.4 Ω RDS(ON))
• Constant Frequency
• Synchronous Operation
• On−Chip Charge Pump Control Circuitry
• Nonoverlap Logic
• Power Up Sequencing Control Option (2.6 V and 3.3 V Only)
• ENABLE Battery Voltage Capable Option
• Selectable Reset Delay
• Dual Pin Feedback Connection
• V2™ Control Topology
• Internally Fused Leads in SO−16L Package
• NCV Prefix for Automotive and Other Applications Requiring Site
and Change Control
Typical Applications
• Telecommunications
• Mobile Multimedia
• Instrumentation
• Automotive Entertainment Systems
100
90
80
70
60
50
40
30
20
10
0
0
VOUT = 7.5 V
VOUT = 5.0 V
VOUT = 3.3 V
VOUT = 2.6 V
VIN = 13.5 V
L =100 mH
100 200 300 400 500 600 700
LOAD CURRENT (mA)
Figure 1. Efficiency vs. Load Current
800
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16
1
SO−16L
DW SUFFIX
CASE 751G
PIN CONNECTIONS AND
MARKING DIAGRAM
1
AUXILIARY
ENABLE
RESET
GND
GND
DELAY
FB1
FB2
16
VIN
CP
SWITCH
GND
GND
VIN2
NC
COMP
x = Voltage Ratings as Indicated Below:
2 = 2.6 V
3 = 3.3 V
5 = 5.0 V
7 = 7.5 V
y = ENABLE Option as Indicated Below:
S = Sequenced
H = High Voltage
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
© Semiconductor Components Industries, LLC, 2003
September, 2003 − Rev. 10
1
Publication Order Number:
NCV8800/D
1 page  
NCV8800 Series
ELECTRICAL CHARACTERISTICS (continued) (−40°C ≤ TJ ≤ 125°C; Sequenced ENABLE Option: 3.5 V ≤ VIN ≤ 16 V,
3.5 V ≤ VIN2 ≤ 16 V, AUXILIARY = 6.0 V, ENABLE = 5.0 V; High Voltage ENABLE Option: 6.0 V ≤ VIN ≤ 16 V, 6.0 V ≤ VIN2 ≤ 16 V;
unless otherwise stated.)
Characteristic
Test Conditions
Min Typ Max Unit
RESET
RESET Leakage Current
RESET = 5.25 V
− − 25 µA
RESET Output Low Voltage
RESET Delay
IOUT = 1.6 mA
DELAY Connected to FB1, FB2
DELAY = 0 V
−
28.70
14.35
−
32.60
16.30
0.4
36.66
18.33
V
ms
ms
ENABLE
ENABLE Threshold
Increasing
Decreasing
1.1 1.9 2.3 V
1.0 1.6 2.2 V
ENABLE Hysteresis
− 100 250 550 mV
ENABLE Input Resistance
DELAY
ENABLE = 5.25 V, VIN2 = 13.5 V
50 100 200 kW
DELAY Input Current
DELAY = 5.15 V
4.0 10 16 µA
SWITCH
SWITCH ON Resistance
Current Limit
ISWITCH = 0.5 A, TJ = −40°C, 25°C
ISWITCH = 0.5 A, TJ = 125°C
−
−
0.40 0.60
Ω
−
0.55 0.75
Ω
1.0 1.6 2.5 A
Error Amplifier
Error Amplifier Transconductance 2.6 V Option
3.3 V Option
5.0 V Option
7.5 V Option
2.58 V ≤ FB1 ≤ 2.62 V
2.58 V ≤ FB2 ≤ 2.62 V
3.275 V ≤ FB1 ≤ 3.325 V
3.275 V ≤ FB2 ≤ 3.325 V
4.962 V ≤ FB1 ≤ 5.038 V
4.962 V ≤ FB2 ≤ 5.038 V
7.442 V ≤ FB1 ≤ 7.558 V
7.442 V ≤ FB2 ≤ 7.558 V
0.55 − 2.10 1/m
Ω
0.43 − 1.65
0.28 − 1.09
0.19 − 0.73
Error Amplifier Bandwidth
Note 4
1.0 −
− MHz
Output Tracking (Sequencing)
Feedback to ENABLE Tracking Voltage, 2.6 V Option
−
60 67 75 %
Feedback to ENABLE Tracking Voltage, 3.3 V Option
4. Guaranteed By Design.
−
80 85 90 %
http://onsemi.com
5
5 Page 
NCV8800 Series
ORDERING INFORMATION
Device
Output Voltage
ENABLE Option
Package
Shipping†
NCV8800SDW26
NCV8800SDW26R2
NCV8800HDW26
NCV8800HDW26R2
2.6 V
Sequenced
High Voltage
46 Units/Rail
1000 Tape & Reel
46 Units/Rail
1000 Tape & Reel
NCV8800SDW33
NCV8800SDW33R2
NCV8800HDW33
NCV8800HDW33R2
3.3 V
Sequenced
High Voltage
SO−16L
46 Units/Rail
1000 Tape & Reel
46 Units/Rail
1000 Tape & Reel
NCV8800HDW50
NCV8800HDW50R2
NCV8800HDW75
NCV8800HDW75R2
5.0 V
7.5 V
High Voltage
46 Units/Rail
1000 Tape & Reel
46 Units/Rail
1000 Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
http://onsemi.com
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet NCV8800.PDF ] | |
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