NCP5666 Datasheet, PDF (1/9 Pages) ON Semiconductor – 3.0 A, Low Dropout Linear Regulator with Enable

NCP5666
3.0 A, Low Dropout Linear
Regulator with Enable
The NCP5666 is a high performance, low dropout linear regulator
designed for high power applications that require up to 3.0 A current
with Enable. 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
•ă±1% Output Voltage Accuracy
•ăUltra-Fast Transient Response (Settling Time: 1-3 ms)
•ăLow Noise Without Bypass Capacitor (57 mV_rms)
•ăLow Ground Current Independent of Load (3.0 mA Maximum)
•ăEnable Function
•ăCurrent Limit Protection
•ăThermal Protection
•ăPower Supply Rejection Ratio > 65 dB
•ăStable with Aluminum, Tantalum and Ceramic Capacitors
•ăPin Compatible with Semtech Device
•ăThis is a Pb-Free Device
Applications
•ăServers
•ăASIC Power Supplies
•ăPost Regulation for Power Supplies
•ăConstant Current Source
•ăNetworking Equipment
•ăGaming and STB Modules
V_in
C_in*
V_in
V_out
NCP5666
V_out
C_out**
Enable
EN
GND
OFF ON
* C_in - 4.7 mF to 220 mF recommended
**Cout - 2.2 mF to 220 mF recommended
See more details in the Application Information section
Figure 1. Typical Application Circuit
http://onsemi.com
MARKING
DIAGRAM
1
5
D²PAK
CASE 936A
NC
5666DSxx
AWLYWWG
xx = Voltage Option
= 25 = 2.5 V
= 50 = 5.0 V
A = Assembly Location
WL = Wafer Lot
Y = Year
WW = Work Week
G = Pb-Free
Tab = GND
Pin 1. V_in
2. EN
3. GND
4. NC
5. V_out
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
©Ă Semiconductor Components Industries, LLC, 2007
1
October, 2007 - Rev. 1
Publication Order Number:
NCP5666/D