Step-Down Controller. NCP5212A Datasheet

NCP5212A Controller. Datasheet pdf. Equivalent

Part NCP5212A
Description Single Synchronous Step-Down Controller
Feature NCP5212A, NCP5212T Single Synchronous Step-Down Controller The NCP5212A/NCP5212T is a synchronous s.
Manufacture ON Semiconductor
Datasheet
Download NCP5212A Datasheet




NCP5212A
NCP5212A, NCP5212T
Single Synchronous
Step-Down Controller
The NCP5212A/NCP5212T is a synchronous stepdown controller
for high performance systems batterypower systems. The
NCP5212A/NCP5212T 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/NCP5212T also features softstart sequence, UVLO for
VCC 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 NCP5212A/NCP5212Ts
Skip Mode for Power Saving Operation at Light Load
Lossless Inductor Current Sensing
Programmable TransientResponseEnhancement (TRE) Control
Programmable Adaptive Voltage Positioning (AVP)
Input Supply Feedforward Control
Internal SoftStart
Integrated Output Discharge (SoftStop)
Buildin Adaptive Gate Drivers
PGOOD Indication
Overvoltage, Undervoltage and Overcurrent Protections
Thermal Shutdown
QFN16 Package
These Devices are PbFree and are RoHS Compliant
Typical Applications
Notebook Application
System Power
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QFN16
CASE 485AP
MARKING DIAGRAMS
16
1
N5212
ALYWG
G
16
1
5212T
ALYWG
G
NCP5212A
NCP5212T
N5212/5212T Device Code
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = PbFree Package
(Note: Microdot may be in either location)
16 15 14 13
VIN 1
VCC 2
SYN 3
EN 4
NCP5212A/
NCP5212T
12 VCCP
11 DL/TRESET
10 PGND
9 CS+
5678
© Semiconductor Components Industries, LLC, 2009
August, 2009 Rev. 3
QFN16
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 18 of this data sheet.
1 Publication Order Number:
NCP5212A/D



NCP5212A
NCP5212A, NCP5212T
TPAD 17
16 15
PGOOD
14
AGND
Thermal
Shutdown
OSC
VIN 1
UVLO
Control
VCC
UVLO
Control
VCC 2
ENABLE
MASTER
SLAVE
NCP5212A/NCP5212T
Control Logic, Protection,
RAMP Generator and PWM Logic
13
IDRP/OCP
Detection
Over Current
Detector
AVP
Control
Low Side
Driver
12 VCCP
11 DL/TRESET
SYN 3
CDIFF
10 PGND
EN 4
Level
Control
Current
Sense
Amplifier
9 CS+
VREF
Error
Amplifier
5
6
7
8
Figure 1. Detail Block Diagram
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