NCP5663 반도체 회로 부품 판매점
Ultra-Fast 3.0 A Low Dropout Linear Regulator
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 ON Semiconductor |
NCP5663www.DataSheet4U.com
Low Output Voltage,
Ultra−Fast 3.0 A Low Dropout
Linear Regulator with Enable
The NCP5663 is a high performance, low dropout linear regulator
designed for high power applications that require up to 3.0 A current.
It is offered in both fixed and adjustable output versions. With output
voltages as low as 0.9 V and ultra−fast response times for load
transients, the NCP5663 also provides additional features such as
Enable and Error Flag (for the fixed output version), increasing the
utility of this device. A thermally robust, 5 pin D2Pak, combined with
an architecture that offers low ground current (independent of load),
provides for a superior high−current LDO solution.
Features
• Ultra−Fast Transient Response (Settling Time: 1−3 ms)
• Low Noise Without Bypass Capacitor (28 mVrms)
• Low Ground Current Independent of Load (3.0 mA Maximum)
• Fixed/Adjustable Output Voltage Versions
• Enable Function
• Error Flag (Fixed Output Version)
• Current Limit Protection
• Thermal Protection
• 0.9 V Reference Voltage for Ultra−Low Output Operation
• Power Supply Rejection Ratio > 65 dB
• This is a Pb−Free Device
Applications
• Servers
• ASIC Power Supplies
• Post Regulation for Power Supplies
• Constant Current Source
• Networking Equipment
• Gaming and STB Modules
http://onsemi.com
MARKING
DIAGRAM
1
5
D2PAK
CASE 936AA
NC
P5663DSy
AWYYWWG
1
Tab = Ground
Pin 1. Enable
2. Vin
3. Ground
4. Vout
5. Adj (adjustable output)
5. Error Flag (fixed output)
y = A for Adjustable Version
B for Fixed 1.5 V Version
A = Assembly Location
W = Wafer Lot
Y = Year
WW = Work Week
G = Pb−Free
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
© Semiconductor Components Industries, LLC, 2005
June, 2005 − Rev. 2
1
Publication Order Number:
NCP5663/D
NCP5663
www.DataPSIhNeeFt4UUN.cCoTmION DESCRIPTION
Pin
Adj/Fixed
Pin Name
Description
1
Enable
This pin allows for on/off control of the regulator. To disable the device, connect to Ground. If this
function is not in use, connect to Vin.
2 Vin Positive Power Supply Input Voltage
3
Ground
Power Supply Ground
4 Vout Regulated Output Voltage
5 Adj This pin is connected to the resistor divider network and programs the output voltage.
(Adjustable Version)
5
Error Flag
An Error Flag is triggered when the output voltage is out of regulation excluding transient signals
(Fixed Version) that may occur. Requires a pullup resistor f 100 kW.
ABSOLUTE MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Input Voltage
Vin 18 V
Output Pin Voltage
Vout
−0.3 to Vin +0.3
V
Adjust Pin Voltage
Vadj
−0.3 to Vin +0.3
V
Enable Pin Voltage
Ven
−0.3 to Vin +0.3
V
Error Flag Voltage
Vef
−0.3 to Vin +0.3
V
Error Flag Current
Ief 3.0 mA
Thermal Characteristics
Thermal Resistance Junction−to−Air
Thermal Resistance Junction−to−Case
RθJA
RθJC
°C/W
45
5.0
Operating Junction Temperature Range
TJ
−40 to +150
°C
Storage Temperature Range
Tstg
−55 to +150
°C
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.
NOTE: This device series contains ESD protection and exceeds the following tests:
Human Body Model (HBM) JESD 22−A114−B
Machine Model (MM) JESD 22−A115−A.
The maximum package power dissipation is:
TJ(max) * TA
PD +
RqJA
The bipolar process employed for this IC is fully characterized and rated for reliable 18 V VCCmax operation. To avoid damaging
the part or degrading it’s reliability, power dissipation transients should be limited to under 30 W for D2PAK.
For open−circuit to short−circuit transient,
PDTransient = VCCmax * ISC.
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NCP5663 regulator
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