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NCV890430 PDF даташит

Спецификация NCV890430 изготовлена ​​​​«ON Semiconductor» и имеет функцию, называемую «0.6A 2MHz 100% Duty Cycle Step-Down Synchronous Regulator».

Детали детали

Номер произв NCV890430
Описание 0.6A 2MHz 100% Duty Cycle Step-Down Synchronous Regulator
Производители ON Semiconductor
логотип ON Semiconductor логотип 

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NCV890430 Даташит, Описание, Даташиты
NCV890430
Product Preview
0.6 A 2 MHz 100% Duty Cycle
Step‐Down Synchronous
Regulator for Automotive
The NCV890430 is a fixed-frequency Synchronous Buck regulator
intended for Automotive, battery-connected applications that operate
with up to a 45 V input supply. It is suitable for automotive systems
with high efficiency, low noise and Low Shutdown Current
requirements that also need to operate at low input voltage close to the
output voltage. A reset pin (with adjustable delay) simplifies
interfacing with a microcontroller. This part also features an enable
input that can either be connected to a low voltage (such as
a micro-controller output) or high voltage (such as the battery input),
and a synchronization input.
The NCV890430 also provides several protection features expected
in automotive power supply systems such as current limit, short circuit
protection, and thermal shutdown. In addition, the high switching
frequency produces low output voltage ripple even when using small
inductor values and all-ceramic input output filter capacitors −
forming a space-efficient switching regulator solution
Features
Internal 500 mW P-channel and 250 mW N-channel Power Switches
Capable of 100% Duty Cycle Operation
VIN Operating Range 3.5 V to 37 V
Withstands Load Dump to 45 V
2 MHz Free-running Switching Frequency
Low Shutdown Current < 10 mA
High Voltage Enable Pin
Synchronization Input Pin
DC Output Current of at Least 0.6 A
Fixed Output Voltage (5 V, 3.3 V, 2.5 V Versions)
±2% Output Voltage Accuracy
DFN Package with Wettable Flanks
(Pin Edge Plating per JEDEC MO220)
NCV Prefix for Automotive Requiring Site and Control Changes
These are Pb−Free Devices
Typical Applications
Automotive Infotainment and Instrumentation
Automotive Body Applications
Linear Regulator Replacement
Rear View Camera
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1
DFN8, 3x3, 0.65P
CASE 506CS
PIN CONNECTIONS
VIN 1
8 SW
RSTB
2
7 PGND
GND
3
6 SYNC
EN 4
5 VOUT
(DFN8 Top View)
MARKING DIAGRAM
1
XXXXXX
XXXXXX
ALYWG
G
XXXXX = Specific Device Code (TBD)
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering, marking and shipping information on
page 8 of this data sheet.
This document contains information on some products that are still under development. ON
Semiconductor reserves the right to change or discontinue these products without notice.
© Semiconductor Components Industries, LLC, 2015
June, 2015 − Rev. P3
1
Publication Order Number:
NCV890430/D









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NCV890430 Даташит, Описание, Даташиты
NCV890430
Figure 1. Typical Application Schematic
Figure 2. Simplified Block Diagram
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NCV890430 Даташит, Описание, Даташиты
NCV890430
Table 1. PIN FUNCTION DESCRIPTIONS
Pin No.
Pin Name
Description
1 VIN Input voltage from battery. Place an input filter capacitor in close proximity to this pin.
2
RSTB
Reset reporting flag. Open drain output, pulling down to ground when the output voltage is out
of regulation. The value of the external pull-up resistor determines the delay time that the
Reset is held low.
3
GND
Analog ground reference − should be connected directly to the output capacitor ground and the
exposed pad.
4 EN Enable input. Connecting a “high” voltage (TTL compatible, battery voltage tolerant) to this pin
turns on the regulator. A low voltage forces the part into a very low Iq shutdown mode.
5
VOUT
Output voltage sensing for regulation.
6
SYNC
Synchronization input. Connecting an external clock to this pin synchronizes switching to the
rising edge of the SYNC signal.
7
PGND
Power ground, connect directly to the input capacitor ground and to the exposed pad.
8 SW Switching node of the Regulator. Connect the output inductor to this pin.
Exposed Pad
EPAD
Must be connected to GND (pin 3, electrical ground) and to a low thermal resistance path to
the ambient temperature environment..
Table 2. ABSOLUTE MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Min/Max Voltage VIN
−0.3 to 45
V
Max Voltage VIN to SW
45 V
Min/Max Voltage SW
−0.7 to 40 V
V
Min Voltage SW − 20 ns
−3.0 V
Min/Max Voltage EN
−0.3 to 40 V
V
Min/Max Voltage on SYNC, RSTB
−0.3 to 6
V
Min/Max Voltage VOUT
−0.3 to 18
V
Thermal Resistance, DFN8 Junction-to-Ambient (Note 1)
Storage Temperature Range
RθJA
40
−55 to +150
°C/W
°C
Operating Junction Temperature Range
ESD withstand Voltage (Human Body Model)
Moisture Sensitivity
TJ
VESD
MSL
−40 to +150
2.0
Level 1
°C
kV
Peak Reflow Soldering Temperature (Note 1)
260 °C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. Mounted on 1 sq. in. of a 4-layer PCB with 1 oz. copper thickness.
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Номер в каталогеОписаниеПроизводители
NCV8904300.6A 2MHz 100% Duty Cycle Step-Down Synchronous RegulatorON Semiconductor
ON Semiconductor

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