All Products

LTC3891HUDC#PBF

20 Terminals 4V~60V 20-Pin LTC3891 DC to DC converter ICSWITCHING CONTROLLER 1 Outputs 105kHz~835kHz 350kHz~535kHz Transistor Driver

Manufacturer: Linear Technology/Analog Devices
Origchip NO: 471-LTC3891HUDC#PBF
Package: 20-WFQFN Exposed Pad
Datasheet: PDF
Stock: 917
Description: 20 Terminals 4V~60V 20-Pin LTC3891 DC to DC converter ICSWITCHING CONTROLLER 1 Outputs 105kHz~835kHz 350kHz~535kHz Transistor Driver (Kg)

Purchase & Inquiry

Transport

Purchase

You may place an order without registering to Utmel.
We strongly suggest you sign in before purchasing as you can track your order in real time.

Means of Payment

For your convenience, we accept multiple payment methods in USD, including PayPal, Credit Card, and wire transfer.

RFQ (Request for Quotations)

It is recommended to request for quotations to get the latest prices and inventories about the part.
Our sales will reply to your request by email within 24 hours.

IMPORTANT NOTICE

1. You'll receive an order information email in your inbox. (Please remember to check the spam folder if you didn't hear from us).
2. Since inventories and prices may fluctuate to some extent, the sales manager is going to reconfirm the order and let you know if there are any updates.

Shipping Cost

Shipping starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.)
The basic freight (for package ≤0.5kg or corresponding volume) depends on the time zone and country.

Shipping Method

Currently, our products are shipped through DHL, FedEx, SF, and UPS.

Delivery Time

Once the goods are shipped, estimated delivery time depends on the shipping methods you chose:

FedEx International, 5-7 business days.

The following are some common countries' logistic time.
transport

Details

Tags

Parameters
Factory Lead Time	8 Weeks
Lifecycle Status	PRODUCTION (Last Updated: 1 week ago)
Mounting Type	Surface Mount
Package / Case	20-WFQFN Exposed Pad
Surface Mount	YES
Number of Pins	20
Operating Temperature	-40°C~150°C TJ
Packaging	Tube
Published	2012
JESD-609 Code	e3
Part Status	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	20
ECCN Code	EAR99
Terminal Finish	Matte Tin (Sn)
Additional Feature	ALSO OPERATES IN ADJUSTABLE MODE FROM 0.80V TO 24V
Subcategory	Switching Regulator or Controllers
Technology	CMOS
Terminal Position	QUAD
Terminal Pitch	0.5mm
Base Part Number	LTC3891
Function	Step-Down
Number of Outputs	1
Output Voltage	24V
Output Type	Transistor Driver
Input Voltage-Nom	12V
Analog IC - Other Type	SWITCHING CONTROLLER
Output Configuration	Positive
Output Current	5A
Voltage - Supply (Vcc/Vdd)	4V~60V
Control Features	Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking
Input Voltage (Min)	4V
Topology	Buck
Control Mode	CURRENT-MODE
Frequency - Switching	105kHz~835kHz 350kHz~535kHz
Input Voltage (Max)	60V
Control Technique	PULSE WIDTH MODULATION
Synchronous Rectifier	Yes
Switcher Configuration	PUSH-PULL
Max Frequency	835kHz
Duty Cycle (Max)	99%
Clock Sync	No
Height Seated (Max)	0.8mm
Length	4mm
Width	3mm
RoHS Status	ROHS3 Compliant
Lead Free	Lead Free

LTC3891HUDC#PBF Overview

With its 20-WFQFN Exposed Pad package, the switching controller fits the needs of most applications. For outputs of 1, this dc motor controller is suitable. Tube is the solid enclosure in which PMIC is packaged. It is capable of handling Transistor Driver dc switching's outputs (s). Voltages 4V~60V are the dc control's supply voltage and operating voltage, respectively. Qualified to work in an dc switcher with -40°C~150°C TJ. Switching can be done at 105kHz~835kHz 350kHz~535kHz with this switching controller. As it has a Surface Mount value, it can be used for general dc dc regulator. DCDC regulator is controlled efficiently by Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking. A SWITCHING CONTROLLER analog integrated circuit is connected to the switch converters. The switching converters's terminals (s) are designed at QUAD. A variety of dc switching's functions can be performed on 20 terminations. The control methods that these dc dc converter ics use include PULSE WIDTH MODULATION. 12V nominal DC switcher's voltage input. Searching "LTC3891" will return other relevant dc to dc converter ics. In total, switching converter has 20 pins. Switching converter is a type of Switching Regulator or Controllers in particular. It is recommended to use 4V as the minimum input voltage of dc dc voltage regulator. Based on the test statistics, DC regulator outputs voltage 24V. At most, the dc to dc regulator accepts 60V input voltage. If you are starting a new project, you should note the dc dc regulator's typical output current is 5A. There is a maximum frequency of 835kHz for this dc regulators. DC to DC voltage regulator has the value of ALSO OPERATES IN ADJUSTABLE MODE FROM 0.80V TO 24V to better satisfy the requirement.

LTC3891HUDC#PBF Features

Transistor Driver Outputs
Switching Frequency: 105kHz~835kHz 350kHz~535kHz
Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking
PULSE WIDTH MODULATION
ALSO OPERATES IN ADJUSTABLE MODE FROM 0.80V TO 24V

LTC3891HUDC#PBF Applications

There are a lot of Linear Technology/Analog Devices LTC3891HUDC#PBF DC to DC converter applications.

Machining centers
Product burn-in
Terrestrial set-top boxes
Flaw detection equipment
Ball screw pair
Servo drive system
Digital precision reference circuits
Large fire protection systems
Refrigerators of central air conditioners
Cutting machine tools