Datasheet Linear Technology LTC3428EDD#PBF

Manufacturer	Linear Technology
Series	LTC3428
Part Number	LTC3428EDD#PBF

4A, 2MHz Dual Phase Step-Up DC/DC Converter in 3mm × 3mm DFN

Datasheets

PDF, 225 Kb, Revision: B, File uploaded: Sep 21, 2017

Extract from the document

Prices

Packaging

Package	3x3 DFN-10
Package Code	DD
Package Index	05-08-1699

Parametrics

Architecture	Constant Frequency Current Mode
Demo Boards	DC700A
Design Tools	LTspice Model
Export Control	no
Features	PolyPhase
Frequency	2000 kHz
Integrated Inductor	no
Ishutdown	100 µA
Isupply	1.3 mA
Monolithic	yes
Number of Outputs	1
Operating Temperature Range	0 to 85 °C
Polyphase	no
Switch Current	5 A
Synchronous	no
Topology	Boost
Vin Max	4.5 V
Vin Min	1.5 V
Vin Min Startup	1.5 V
Vout Max	5.25 V
Vout Min	1.6 V
Vswitch Max	6 V

Eco Plan

RoHS

Compliant

Design Notes

Download
2-Phase Boost Converter Delivers 10W from a 3mm x 3mm DFN Package &mdash DN354
PDF, 98 Kb, File published: Jan 1, 2005
Extract from the document
advertisement 2-Phase Boost Converter Delivers 10W from a 3mm Г— 3mm
DFN Package вЂ“ Design Note 354
Jesus Rosales
Introduction
Small size, high efп¬Ѓciency, low noise and simplicity are
all key features for battery-powered applications and
point-of-load converters in low voltage systems. The
LTC В®3428 is well suited for these applications because
it offers these features as well as minimum output ripple
and component count. It can start up with as little as
1.5V and operates with inputs up to 4.5V. Its dual phase
architecture allows for an effective switching frequency
of 2MHz (1MHz/phase), which minimizes inductor and
capacitor size. ripple frequency. This reduces the peak-to-peak output
ripple current, which in turn makes it easier to п¬Ѓlter out
switching frequency ripple and noise. Input ripple current is also reduced, which minimizes stress on other
components and reduces required input capacitance.
The circuit in Figure 1 produces only 20mVP-P of output
voltage ripple, as shown in Figure 2.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks
of Linear Technology Corporation. All other trademarks are the property of their
respective owners. Dual Phase Converter Reduces Output Ripple
The LT3428 incorporates two internal 93mО©, N-channel …

Model Line

Series: LTC3428 (2)

LTC3428EDD#PBF LTC3428EDD#TRPBF

Manufacturer's Classification

Power Management > Switching Regulator > Step-Up (Boost) Regulators > Internal Power Switch Boost

Other Names:

LTC3428EDDPBF, LTC3428EDD PBF

EMS supplier

Slices

Microcontrollers