NCP6868 Datasheet, PDF (1/28 Pages) ON Semiconductor – 2.5 A Boost Regulator with Bypass Function

NCP6868
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2.5 A Boost Regulator
with Bypass Function
The NCP6868 is a synchronous boost converter. It is designed
primarily to boost new generation low-voltage Li-Ion batteries (silicon
anode-like) embedded into cell and smart phones. The objective is to
guarantee a minimum output voltage even in the case for which the
battery voltage is below the minimum voltage required by the system.
The device features a Bypass mode coupled with a Boost mode. It is
capable to drive a continuous load up to 2.5 A and it operates at
a switching frequency of 2.5 MHz. An I²C serial control can also be
enabled for configuring the output voltage and peak current limit. The
NCP6868 is available in a space saving, low profile 1.8 × 1.8 mm
CSP-16 package.
Features
• 2.35 V to 5.5 V Input Voltage
• Fixed or Programmable V_OUT: from 2.85 V Up to 5.3 V
• Bypass Operation when V_IN is Above or Close to V_OUT
• Few External Components & 0.47 mH Inductor
• High Efficiency Up to 98%
• Output Current Up to 2.5 A Continuous
(V_IN = 2.6 V, V_OUT = 3.5 V) and up to 4 A Peak Current
• Inductor Peak Current up to 9.0 A
• Forced Bypass Option through BP Pin
• Low Quiescent Current: 50 mA
• Voltage Control Pin (VSEL) to Precisely Adjust V_OUT
• I²C Serial Control as a Software-Mode Option to Program Output
Voltage and Peak Current Limit
• Soft-Start Function (SS) to Limit Inrush Current
• Current Limitation to Protect Against Short Circuit
• Thermal Limit Protection
• Small 1.8 × 1.8 mm / 0.4 mm Pitch CSP Package
• These Devices are Pb−Free and are RoHS Compliant
Typical Applications
• Boost Converters for New Generation Low-Voltage Li-Ion
Batteries
• USB OTG (On-The-Go)
• 3G/4G – LTE RF PA
• Cell Phones, Smart Phones, Phablets, Tablets & Webtablets
www.onsemi.com
WLCSP16
CASE 567JU
MARKING DIAGRAM
6868x
ALYYWW
G
6868x = Specific Device Code
x = P: NCP6868P
B: NCP6868V315
C: NCP6868V330
E: NCP6868E315
A = Assembly Location
L = Wafer Lot
YY = Year
WW = Work Week
G
= Pb-Free Package
ORDERING INFORMATION
See detailed ordering and shipping information on page 27 of
this data sheet.
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
© Semiconductor Components Industries, LLC, 2015
1
August, 2015 − Rev. P4
Publication Order Number:
NCP6868/D