LTM4605IV#PBF Switching Voltage Regulators Hi Eff Buck-Boost DC/DC Module Reg

                                                   LTC3728LEUH-1#TRPBF Datasheet

Product Details

DESCRIPTION

The LTC®3728L-1 is a dual high performance step-down switching regulator controller that drives all N-channel synchronous power MOSFET stages. A constant frequency current mode architecture allows phase-lockable frequency of up to 550kHz. Power loss and noise due to the ESR of the input capacitors are minimized by operating the two controller output stages out of phase. The LTC3728L-1 is identical to the LTC3728L except that the LTC3728L-1 lacks the over current latchoff feature.

FEATURES

■ Dual, 180° Phased Controllers Reduce Required Input Capacitance and Power Supply Induced Noise
■ OPTI-LOOP® Compensation Minimizes COUT
■ ±1.5% Output Voltage Accuracy
■ Power Good Output Voltage Indicator
■ Phase-Lockable Fixed Frequency 250kHz to 550kHz
■ Over Current Latchoff Disabled
■ Wide VIN Range: 4.5V to 28V (35V for LTC3728LI-1) Operation
■ Very Low Dropout Operation: 99% Duty Cycle
■ Adjustable Soft-Start Current Ramping
■ Foldback Output Current Limiting
■ Output Overvoltage Protection
■ Low Shutdown IQ: 20μA
■ 5V and 3.3V Standby Regulators
■ 3 Selectable Operating Modes: Constant Frequency, Burst Mode® Operation and PWM
■ 5mm × 5mm QFN and 28-Lead Narrow SSOP Packages

APPLICATIONS

■ Notebook and Palmtop Computers
■ Telecom Systems
■ Portable Instruments
■ Battery-Operated Digital Devices
■ DC Power Distribution Systems

Specification

Attribute	Attribute Value
Manufacturer	Analog Devices / Linear Technology
Product Category	DC DC Switching Controllers
Series	-
Packaging	Tape & Reel (TR) Alternate Packaging
Package-Case	32-WFQFN Exposed Pad
Operating-Temperature	-40°C ~ 85°C (TA)
Output-Type	Transistor Driver
Function	Step-Down
Supplier-Device-Package	32-QFN (5x5)
Number-of-Outputs	2 Outputs
Topology	Buck
Voltage-Supply-Vcc-Vdd	4.5 V ~ 28 V
Frequency-Switching	260kHz ~ 550kHz
Control-Features	Enable, Power Good, Soft Start
Output-Configuration	Positive
Output-Phases	2
Duty-Cycle-Max	0.994
Synchronous-Rectifier	Yes
Clock-Sync	No
Serial-Interfaces	-

Form,Package,Functional compatible component

Descriptions

Who we are?

is a professional electronic marketing corporation entirely engaged in the fields of semi-conductors and electronic components sale and service for clients over 10 years, specialize in selling the new and unused, original factory sealed packing electronic components. specialize in IC,diode,transistor,IGBT,DC-DC converter.....***has set up our own sales service conception and has already established strong partnerships with many famous manufacturers and we have more than 5,000,000 kinds of electronic components for your choices, always at your services !

FAQ
Q: Are you trading company or manufacturer?
A: We are original manufacturer OF Integrated Circuit Chip . We can do OEM/ODM business.
Q: How long is your delivery time?
A: Group buying delivery time: 30-60 days; General delivery time: 20 days.
Q: What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery.
Q: How to buy your products?
A: You can buy the products from our company directly.Normally the procedure is sign the contract, payment by T/T,Contact the shipping company to delivery the goods to your country.

Q: What is the warranty ?
A: The free warranty is one year from the day of Commissioning qualified.If there is any fault for our products within the free warranty period, we will repair it and change the fault assembly for free