NCP1417 Datasheet, PDF (1/16 Pages) ON Semiconductor – 200 mA DC-DC Step-up Converter with Dual Low Battery Protection

NCP1417
200 mA DC-DC Step-up
Converter with Dual Low
Battery Protection
NCP1417 is a monolithic micropower high frequency Boost
(step–up) voltage switching converter IC specially designed for
battery operated hand–held electronic products up to 200 mA loading.
It integrates Synchronous Rectifier for improving efficiency as well as
eliminating the external Schottky Diode. High switching frequency
(up to 600 kHz) allows use of a low profile inductor and output
capacitor. Dual Low–Battery Detectors and Cycle–by–Cycle Current
Limit provide value–added features for various battery–operated
applications. With all these functions ON, the quiescent supply current
is only 9.0 mA typical. This device is available in a space saving
compact Micro8t package.
Features
• High Efficiency, Up to 92%, Typical
• Very Low Device Quiescent Supply Current of 9.0 mA Typical
• Built–in Synchronous Rectifier (P–FET) Eliminates One External
Schottky Diode
• High Switching Frequency (Up to 600 kHz) Allows Small Size
Inductor and Capacitor
• High Accuracy Reference Output, 1.19 V ± 0.6% @ 25_C, Can
Supply More Than 2.5 mA when V_OUT ≥ 3.3 V
• 1.0 V Startup at No Load Guaranteed
• Output Voltage from 1.5 V to 5.5 V Adjustable
• Output Current Up to 200 mA @ V_in = 2.5 V, V_out = 3.3 V
• Multi–Function LBI/Shutdown Control Pin
• Dual Open Drain Low–Battery Detector Outputs
• 1.0 A Cycle by Cycle Current Limit
• Low Profile and Minimum External Parts
• Compact Micro8 Package
Applications
• Personal Digital Assistants (PDA)
• Handheld Digital Audio Product
• Camcorders and Digital Still Camera
• Handheld Instrument
• Conversion from One or Two NiMH or NiCd or One Lithium–ion
Cells to 3.3 V/5.0 V
http://onsemi.com
8
1
Micro8
DM SUFFIX
CASE 846A
MARKING
DIAGRAM
8
1417
AYW
1
1417 = Device Marking
A = Assembly Location
Y = Year
W = Work Week
PIN CONNECTIONS
FB 1
LBI/SHDN 2
LBO1 3
REF ₄
(Top View)
8 OUT
7 LX
6 GND
5 LBO2
ORDERING INFORMATION
Device
Package
Shipping
NCP1417DMR2
Micro8 4000 Tape & Reel
© Semiconductor Components Industries, LLC, 2002
1
April, 2002 – Rev. 1
Publication Order Number:
NCP1417/D