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NCP5217A
Synchronous Buck Controller, Single
NCP5217A
Single Synchronous
Step-Down Controller
The NCP5217A is a synchronous stepïdown controller for high
performance systems batteryïpower systems. The NCP5217A
includes a high efficiency PWM controller. A pin is provided to enable
or disable forced PWM mode of operation. An internal power good
voltage monitor tracks the SMPS output. NCP5217A also features
softïstart sequence, UVLO for VCC and switcher, overvoltage
protection, overcurrent protection, undervoltage protection and
thermal shutdown. The IC is packaged in QFN14.
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 Selectable Power Saving Mode / Force PWM Mode Lossless Inductor Current Sensing Programmable TransientïResponseïEnhancement (TRE) Control Programmable Adaptive Voltage Positioning (AVP) Input Supply Feedforward Control Internal SoftïStart Integrated Output Discharge (SoftïStop) Buildïin Adaptive Gate Drivers PGOOD Indication Overvoltage, Undervoltage and Overcurrent Protections Thermal Shutdown QFN14 Package These Devices are PbïFree and are RoHS Compliant
Typical Applications Notebook Application System Power
Device Package Shipping
ORDERING INFORMATION
NCP5217AMNTXG QFN14
(PbïFree)
3000 /
Tape & Reel
QFN14
CASE 485AL
MARKING
DIAGRAM
http:// = Assembly Location = Wafer Lot = Year = Work Week = PbïFree Package
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.
QFN14
(Top View)
(Note: Microdot may be in either location)
N5217
ALYW 14 8
CS+
CSï/Vo
COMP
PGOOD
SWN
IDRP/OCP
VCC
DL/TRESET
EN_SKIP BST
AGND PGND
