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ADI LTC1159CS#PBF product image
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ADI LTC1159CS#PBFRoHS

Manufacturer
ADI
MPN
LTC1159CS#PBF
LCSC Part #
C674699
Packaging
SO-16
Customer #
Key Attributes
1 Adjustable and Fixed Step-down type SO-16 DC DC Switching Controllers RoHS
Datasheetpdf iconADI LTC1159CS#PBF
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QtyUnit Price(Reference Only)Total Amount
1+$ 9.1744$ 9.17
200+$ 3.55$ 710.00
500+$ 3.4266$ 1713.30
1,000+$ 3.3648$ 3364.80
Standard Packaging50/Full Tube
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerADI
PackagingSO-16
Operating Temperature0℃~+70℃@(TA)
Synchronous RectifierYes
FeaturesAdjustable current limiting;Light load efficient mode;Built-in LDO regulator
Output Current-
Number of Channels1
TopologyBuck
Frequency - Switching250kHz
Operating Voltage4V~40V
Output TypeAdjustable and Fixed
Switch tube (built-in/external)External
Output Voltage1.21V~1.29V;3.23V~3.43V;4.9V~5.2V
FunctionStep-down type
Quiescent Current200uA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging50
Sales UnitPiece

Introduction

AI Translation

The LTC1159 series is a family of synchronous step-down switching regulator controllers featuring automatic Burst Mode operation to maintain high efficiencies at low output currents. These devices drive external complementary power MOSFETs at switching frequencies up to 250kHz using a constant off-time current-mode architecture. A separate pin and on-board switch allow the MOSFET driver power to be derived from the regulated output voltage providing significant efficiency improvement when operating at high input voltages. The constant off-time current-mode architecture maintains constant ripple current in the inductor and provides excellent line and load transient response. The output current level is user programmable via an external current sense resistor. The LTC1159 automatically switches to power saving Burst Mode operation when load current drops below approximately 15% of maximum current. Standby current is only 300μA while still regulating the output and shutdown current is a low 20μA.

Features

AI Translation
  • Operation from 4V to 40V Input Voltage
  • Ultrahigh Efficiency: Up to 95%
  • 20μA Supply Current in Shutdown
  • High Efficiency Maintained Over Wide Current Range
  • Current Mode Operation for Excellent Line and Load Transient Response
  • Very Low Dropout Operation: 100% Duty Cycle
  • Short-Circuit Protection
  • Synchronous FET Switching for High Efficiency
  • Adaptive Non-Overlap Gate Drives
  • Available in SSOP and SO Packages

Applications

AI Translation
  • Step-Down and Inverting Regulators
  • Notebook and Palmtop Computers
  • Portable Instruments
  • Battery-Operated Digital Devices
  • Industrial Power Distribution
  • Telecom Power Supplies