28 Terminals 4V~38V 28-Pin LTC3857 DC to DC converter ICDUAL SWITCHING CONTROLLER 2 Outputs 105kHz~835kHz 350kHz~535kHz Transistor Driver
SOT-23
LTC3857IGN-1#PBF Datasheet
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In-Stock: 0 items
Specifications
Name
Value
Type
Parameter
Factory Lead Time
8 Weeks
Lifecycle Status
PRODUCTION (Last Updated: 3 months ago)
Mounting Type
Surface Mount
Package / Case
28-SSOP (0.154, 3.90mm Width)
Surface Mount
YES
Number of Pins
28
Operating Temperature
-40°C~125°C TJ
Packaging
Tube
Published
2012
Series
PolyPhase®
JESD-609 Code
e3
Part Status
Active
Moisture Sensitivity Level (MSL)
1 (Unlimited)
Number of Terminations
28
ECCN Code
EAR99
Terminal Finish
Matte Tin (Sn)
Subcategory
Switching Regulator or Controllers
Technology
CMOS
Terminal Position
DUAL
Terminal Form
GULL WING
Peak Reflow Temperature (Cel)
260
Terminal Pitch
0.635mm
Time@Peak Reflow Temperature-Max (s)
30
Base Part Number
LTC3857
Function
Step-Down
Number of Outputs
2
Output Voltage
24V
Output Type
Transistor Driver
Input Voltage-Nom
12V
Number of Channels
1
Analog IC - Other Type
DUAL SWITCHING CONTROLLER
Output Configuration
Positive
Voltage - Supply (Vcc/Vdd)
4V~38V
Control Features
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)
38V
Control Technique
PULSE WIDTH MODULATION
Synchronous Rectifier
Yes
Switcher Configuration
PHASE-SHIFT
Max Frequency
850kHz
Duty Cycle (Max)
99.4%
Clock Sync
No
Length
9.9mm
Width
3.9mm
RoHS Status
ROHS3 Compliant
Lead Free
Lead Free
Pricing & Ordering
Quantity
Unit Price
Ext. Price
1
$3.274437
$3.274437
10
$3.089092
$30.89092
100
$2.914238
$291.4238
500
$2.749281
$1374.6405
1000
$2.593661
$2593.661
LTC3857IGN-1#PBF Product Details
LTC3857IGN-1#PBF Overview
Capsuled in the 28-SSOP (0.154, 3.90mm Width) package, the switching controller suits most application needs. This dc motor controller can be used to generate outputs with 2 numbers. Packaging for the pmic consists of Tube solid enclosures. With Transistor Driver dc switching's output (s), it is able to handle it. 4V~38V is the operating voltage and supply voltage of the dc control. Qualified to work in a -40°C~125°C TJ dc switcher. Using this switching controller, it is possible to switch at 105kHz~835kHz 350kHz~535kHz. A generalization of dc dc regulator can be made using Surface Mount. Switching control is made easier with the dcdc regulator's Enable, Frequency Control, Power Good, Soft Start, Tracking. Thare switch converters are connected to an analog integrated circuit (IC) of type DUAL SWITCHING CONTROLLER. DUAL are the position of the terminal of the switching converters. There are many different types of terminations for 28. A few of the control techniques these dc dc converter ics adapt include PULSE WIDTH MODULATION. DC switcher's voltage input is 12V. A search for "LTC3857" will reveal other relevant dc to dc converter ics. Switching converter has a total of 28 pins. Particularly, switching converter is a type of Switching Regulator or Controllers. The minimum input voltage of the dc dc voltage regulator should be 4V. DC regulator outputs 24V voltage based on test statistics. It should be noted that the dc to dc regulator only accepts 38V voltage as input voltage. DC regulator has a maximum frequency of 850kHz. The dc to dc voltage regulator is from the PolyPhase? series. There are 1 channels for high-quality communication.
LTC3857IGN-1#PBF Features
Transistor Driver Outputs Switching Frequency: 105kHz~835kHz 350kHz~535kHz Enable, Frequency Control, Power Good, Soft Start, Tracking PULSE WIDTH MODULATION
LTC3857IGN-1#PBF Applications
There are a lot of Linear Technology/Analog Devices LTC3857IGN-1#PBF DC to DC converter applications.