Datasheet Linear Technology LTC3822EMSE#TRPBF

Manufacturer	Linear Technology
Series	LTC3822
Part Number	LTC3822EMSE#TRPBF

No RSENSE, Low Input Voltage, Synchronous Step-Down DC/DC Controller

Datasheets

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PDF, 209 Kb, Language: en, File uploaded: Sep 23, 2017, Pages: 20
No RSENSE , Low Input Voltage, Synchronous Step-Down DC/DC Controller

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Packaging

Package	MS-10E
Package Code	MSE
Package Index	05-08-1664

Parametrics

Architecture	Constant Frequency Current Mode
Demo Boards	DC1014A,DC972A
Design Tools	LTspice Model
Export Control	no
Features	No Rsense, Selectable Switching Frequency
Frequency	750 kHz
Frequency Adjust Range	300kHz, 550kHz, 750kHz
Integrated Inductor	no
Ishutdown	7.5 µA
Isupply	0.34 mA
Max Phases	1
Monolithic	no
Number of Outputs	1
Operating Temperature Range	0 to 85 °C
Output Current	20 A
Polyphase	no
Sense Resistor	None
Switch Current	20 A
Synchronous	yes
Topology	Buck
Vin Max	4.5 V
Vin Min	2.75 V
Vout Max	4.455 V
Vout Maximum	.99Vin
Vout Min	0.6 V
Vref Accuracy Over Temp	1 %

Eco Plan

RoHS

Compliant

Articles

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High Efficiency, Low Input Voltage, Synchronous Buck Controller Drives up to 15A Load Current &mdash LT Journal
PDF, 406 Kb, File published: Nov 21, 2006
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DESIGN IDEAS L High Efп¬Ѓciency, Low Input Voltage,
Synchronous Buck Controller Drives
by Joseph Duncan
up to 15A Load Current
Introduction IPRG The LTC3822 is a synchronous stepdown DC/DC converter that drives
external N-channel power MOSFETs
to maximize average current drive for
the lowest cost. Its No RSENSE constant
frequency architecture minimizes the
number of external components, and
a programmable frequency of up to
750kHz allows the use of small surface-mount inductors and capacitors.
This DC/DC controller is optimized
for 3.3VIN and Lithium-Ion applications allowing VOUT as low as 0.6V
while maintaining 1% precision. The
all N-channel MOSFET drive simpliп¬Ѓes component selection as well as
drastically increasing the current
capabilities of a typical circuit. Even
with 3.3V gate drive, the LTC3822 is
capable of controlling more than 15A
load current while maintaining high
efп¬Ѓciency. RUN ITH LTC3822 SW GND 59k GND VOUT
1.8V …

Model Line

Series: LTC3822 (4)

LTC3822EDD#PBF LTC3822EDD#TRPBF LTC3822EMSE#PBF LTC3822EMSE#TRPBF

Manufacturer's Classification

Power Management > Switching Regulator > Step-Down (Buck) Regulators > External Power Switch Buck Controllers

Other Names:

LTC3822EMSETRPBF, LTC3822EMSE TRPBF

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