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reference designSGM62111 | Demoboard SGM62111 2.5A Buck-Boost Converters

SG-Micro SGM62111 | Demoboard SGM62111 2.5A Buck-Boost Converters

2.5A Buck-Boost Converters with I2C Interface

Overview

TopologyBuck-Boost Converter
Input voltage2.2-5.5 V
Output 15.2 V
IC revisionA

Description

The SGM62110 and SGM62111 are 4-switch Buck- Boost converters with programmable I2C interface for simple configuration of integrated rich features. Synchronous rectification improves system efficiency which is friendly for battery operated applications. In addition, the programmable light load PFM (pulse frequency modulation) mode and low quiescent current offer above 90% efficiency in the 10mA to 2A output current range.The SGM62110 and SGM62111 are capable to regulate the output voltage when the input voltage is below, above or equal to the output voltage. The mode transition is also optimized to ensure smooth operation and reduce output voltage ripple.

Features

  • 2.2V to 5.5V Input Voltage Range
  • 1.8V to 5.2V Output Voltage Range
  • 2.5A Output Current for VIN ≥ 2.5V, VOUT = 3.3V
  • 2.5A Output Current for VIN ≥ 2.8V, VOUT = 3.5V
  • 2A Output Current for VIN ≥ 2.5V, VOUT = 3.5V
  • 3.3V or 3.45V Pre-Programmed Output Voltage (SGM62110)
  • Programmed Output Voltage Prior to Startup (SGM62111)
  • Above 90% Efficiency for IOUT from 10mA to 2A
  • 18μA (TYP) Quiescent Current
  • User-Selectable PFM Mode
  • Real Buck, Boost and Buck-Boost Modes
  • Automatic Mode Transition
  • I²C Interface (Up to 1MHz Clock Speed)
  • Internal Soft-Start
  • OTP, Input OVP and Output OCP
  • True Shutdown Function with Load Disconnect and Active Output Discharge
  • Available in a Green WLCSP-2.21×1.40-15B Package

Typical applications

  • Smartphones and Tablets, TWS Earbud Chargers
  • Pre-regulators and USB VCONN Supplies
  • General-Purpose Point-of-Load Regulators

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,30%(A)
RDC typ.(mΩ)
fres(MHz)
VOP(V)
Mount
SamplesAvailability & Sample
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744383560047HT
SPECWE-MAPI SMT Power Inductor, 0.47 µH, 12.7 A
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Inductance0.47 µH
Performance Rated Current12.7 A
Saturation Current @ 30%13 A
DC Resistance7 mΩ
Self Resonant Frequency83 MHz
Operating Voltage80 V
MountSMT 
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