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Giantec GT5152

2A, Synchronous Step-Down DC-DC Converter

Overview

TopologyBuck Converter
Input voltage6.5-24 V
Output 15 V / 2 A
IC revisionA2

Description

The GT5152 device is a high efficiency monolithic synchronous step-down bulk regulator using current mode architecture with two integrated power MOSFETs. This device delivers up to 2A of output current over a wide operating voltage supply range from 4.75V to 24V which makes this device ideally suited for many applications such as battery powered systems, distributed power systems, networking systems and green electronics/appliances. Current mode operation provides fast transient response and excellent load and line regulation. The switching frequency of GT5152 is fixed 350kHz.

The fault condition protections such as cycle-by-cycle current limiting and over temperature hysteretic shutdown are implemented. In shutdown mode the converter draws 20μA of supply current at the maximum input supply voltage. Additional features include adjustable start, and enable.The GT5152 is available in an 8-Pin SOP package and thermal enhanced HSOP package.

Features

  • High Efficiency: Up to 95%
  • Up to 2A Output Current
  • Very Low Shutdown Current: 20μA(Max.) at Input 12V Supply Voltage
  • Integrated 0.18Ω Switch
  • Operating Switching Frequency Fixed 350kHz
  • 4.75V to 24V Input Voltage Range
  • Support 28V Switching and Below 32V Glitch
  • Programmable Output Voltage from 0.9V to 21V.
  • Current Mode Operation with External Compensation for Optimized Loop Bandwidth
  • Over Temperature Shutdown
  • Cycle-by-Cycle Over Current Protection
  • Programmable Soft Start
  • Input Under Voltage Lockout
  • Operating Temperature: -40oC to +85oC
  • Package Available: 8-Pin SOP Package and HSOP

Remarks:Table 1: Recommended Components for Standard Output VoltagesRefer page no.6

Typical applications

  • Networking systems
  • Battery Powered Systems
  • Pre-regulator for Linear Regulators
  • Distributed Power Systems

Products

Order Code Data­sheet Downloads Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Mount Samples
74437349150
STE ALT EAG CAD LTS PSP SPE IGS CADWE-LHMI SMT Power Inductor 15 2.75 5.5 81 92 10 SMT
Order Code Data­sheet
74437349150
Samples
Order Code Data­sheet Downloads Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Mount Samples