NCP5252 Datasheet, PDF (1/16 Pages) ON Semiconductor – 2.0 A, 1.0 MHz Integrated Synchronous Buck Regulator with Light Load Efficiency

NCP5252
2.0 A, 1.0 MHz Integrated
Synchronous Buck
Regulator with Light Load
Efficiency
NCP5252 is a synchronous buck regulator with integrated high-side
and low-side MOSFETs. The device is capable of operating from a 5 V
or 12 V supply and can output a voltage down to 0.6 V. The switching
frequency is adjustable from 333 kHz up to 1.0 MHz and has the
ability to provide skip mode for light load efficiency. NCP5252
protection features include Under Voltage Lock Out (UVLO), Over
Voltage Protection (OVP), Cycle-by-Cycle Current Protection (OCP)
and Thermal Shutdown. The parts are packaged in a 3x3mm QFN-16.
Features
• 1% Accuracy 0.6 V Reference
• V_CC Voltage 4.5 V to 13.2 V
• Adjustable Output Voltage Range: 0.6 V to 5.0 V V_out
• Transient Response Enhancement (TRE) Feature.
• Lossless Low Side Sense Current Control
• Input Voltage Feed Forward Control
• Internal Digital Soft−Start
• Integrated Output Discharge (Soft−Stop)
• Cycle−by−Cycle Current Limit
• PGOOD Indication
• Overvoltage and Undervoltage Protection
• Thermal Shutdown Protection
• Power Saving Mode at Light Load
• Integrated Boost Diode
• QFN−16 (3 mm x 3 mm)
• These Devices are Pb−Free and are RoHS Compliant
Typical Applications
• Desktop Application
• System Power
• XDSL, Modems, DC−DC Modules
• Set Top Box
• HD Driver
• LED Driver, DVD Recorders
http://onsemi.com
1
QFN16
CASE 485G
MARKING
DIAGRAM
16
1
N5252
ALYWG
G
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
16 15 14 13
VCC 1
BST 2
PGOOD 3
EN/SKIP 4
NCP5252
12 PGND
11 PGND
10 V5
9 FREQ_SET
5678
QFN16
(Top View)
ORDERING INFORMATION
Device
Package
Shipping^†
NCP5252MNTXG QFN16 3000 / Tape & Reel
(Pb−Free)
†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.
© Semiconductor Components Industries, LLC, 2010
1
January, 2010 − Rev. 0
Publication Order Number:
NCP5252/D