NCP5212A Datasheet, PDF (1/19 Pages) ON Semiconductor – Single Synchronous Step-Down Controller

NCP5212A
Single Synchronous
Step-Down Controller
The NCP5212A is a synchronous stepdown controller for high
performance systems battery−power systems. The NCP5212A
includes a high efficiency PWM controller. A pin is provided to allow
two devices in interleaved operation. An internal power good voltage
monitor tracks the SMPS output. NCP5212A also features soft−start
sequence, UVLO for V_CC and switcher, overvoltage protection,
overcurrent protection, undervoltage protection and thermal
shutdown. The IC is packaged in QFN16
Features
• 0.8% accuracy 0.8 V Reference
• 4.5 V to 27 V Battery/Adaptor Voltage Range
• Adjustable Output Voltage Range: 0.8 V to 3.3 V
• Synchronization Interleaving between two NCP5212As
• Skip mode for power saving operation at light load
• Lossless Inductor Current Sensing
• Programmable Transient−Response−Enhancement (TRE) Control
• Programmable Adaptive Voltage Positioning (AVP)
• Input Supply Feedforward Control
• Internal Soft−Start
• Integrated Output Discharge (Soft−Stop)
• Build−in Adaptive Gate Drivers
• PGOOD Indication
• Overvoltage, Undervoltage and Overcurrent Protections
• Thermal Shutdown
• QFN16 Package
• This is a Pb−Free Device
Typical Applications
• Notebook Application
• System Power
http://onsemi.com
1
QFN16
CASE 485AP
MARKING
DIAGRAM
16
1
N5212
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
VIN 1
VCC 2
SYN 3
EN 4
NCP5212A
12 VCCP
11 DL/TRESET
10 PGND
9 CS+
5678
QFN16
(Top View)
© Semiconductor Components Industries, LLC, 2009
May, 2009 − Rev. 0
ORDERING INFORMATION
Device
Package
Shipping^†
NCP5212AMNTXG QFN16
(Pb−Free)
3000 /
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.
1
Publication Order Number:
NCP5212A/D