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reference designAM32102

Atlas Magnetics AM32102

2.4V TO 5.5V INPUT, PROGRAMMABLE 2A BUCK CONVERTER

Overview

TopologyBuck Converter
Input voltage2.4-5.5 V
Switching frequency2000-3000 kHz
Output 13.8 V / 2 A
IC revision1

Description

The AM32102 is a programmable step-down converter with an input voltage range of 2.4V to 5.5V. The maximum output current is 2A, and the output voltage ranges from 0.6V to 3.8V. Key features include an ultra-low 16 µA quiescent current, selectable operating modes (Auto, FPWM, Sleep and USM), and a configurable switching frequency ranging from 2MHz to 3MHz. Integrated power transistors, precision regulation (±1%) in PWM, and protection functions (UVLO, OVP, SCP, thermal shutdown) make the AM32102 ideal for space-constrained and battery-powered systems.

Features

2.4V to 5.5V input voltage range

  • Flexible Output Voltage Selection:
  • Internal voltage dividers: 0.6V, 0.9V, 1.1V, 1.8V, 2.5V, or3.3V, simplifying design and reducing externalcomponents
  • External resistor divider for custom output voltages. 0.6Vto 3.8V
  • IOUT: 2A Continuous
  • 1% Output Voltage Tolerance in PWM
  • 16µA Quiescent Current
  • Operating Modes:
  • Auto Mode (PFM/PWM) – optimized for battery-poweredapplications
  • Sleep mode
  • USM (Ultra Sonic Mode)
  • FPWM Mode – ensures low output voltage ripple
  • Configurable CCM Switching Frequency: 2MHz to 3MHzwith step 0.2MHz
  • Power Good Signal: Provides system monitoring capability
  • Output Discharge
  • Protection Circuitry
  • Under-Voltage Lockout
  • VIN Overvoltage Protection
  • Peak Current Limit
  • Valley Current Limit
  • Short Circuit Protection (Hiccup Mode)
  • Thermal Shutdown

Typical applications

  • Optical Modules
  • Сell Phones
  • Portable Devices
  • IoT devices

More information

Parts approved by Atlas Magnetics

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
C
Tol. C
VR(V (DC))
Size
Operating Temperature
Q
DF(%)
RISO
Ceramic Type
L(mm)
W(mm)
H(mm)
Fl(mm)
Packaging
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC max.(mΩ)
fres(MHz)
SamplesAvailability & Sample
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885012005010
SPECWCAP-CSGP MLCCs 10 V(DC), 33 pF, ±5%
Simu­lation
Availability
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Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 10 V(DC)
Capacitance33 pF
Capacitance±5% 
Rated Voltage10 V (DC)
Size0402 
Operating Temperature -55 °C up to +125 °C
Q-Factor1000 
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Insulation Resistance10 GΩ
Ceramic TypeNP0 Class I 
Length1 mm
Width0.5 mm
Height0.5 mm
Pad Dimension0.25 mm
Packaging7" Tape & Reel 
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885012205006
SPECWCAP-CSGP MLCCs 10 V(DC), 1 nF, ±10%
Simu­lation
Availability
–
Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 10 V(DC)
Capacitance1 nF
Capacitance±10% 
Rated Voltage10 V (DC)
Size0402 
Operating Temperature -55 °C up to +125 °C
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Dissipation Factor5 %
Insulation Resistance10 GΩ
Ceramic TypeX7R Class II 
Length1 mm
Width0.5 mm
Height0.5 mm
Pad Dimension0.25 mm
Packaging7" Tape & Reel 
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885012105020
SPECWCAP-CSGP MLCCs 6.3 V(DC), 10 µF, ±20%
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 6.3 V(DC)
Capacitance10 µF
Capacitance±20% 
Rated Voltage6.3 V (DC)
Size0402 
Operating Temperature -55 °C up to +85 °C
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Dissipation Factor10 %
Insulation Resistance0.01 GΩ
Ceramic TypeX5R Class II 
Length1 mm
Width0.5 mm
Height0.5 mm
Pad Dimension0.25 mm
Packaging7" Tape & Reel 
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885012107011
SPECWCAP-CSGP MLCCs 10 V(DC), 22 µF, ±20%
Simu­lation
Availability
–
Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 10 V(DC)
Capacitance22 µF
Capacitance±20% 
Rated Voltage10 V (DC)
Size0805 
Operating Temperature -55 °C up to +85 °C
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Dissipation Factor10 %
Insulation Resistance0.005 GΩ
Ceramic TypeX5R Class II 
Length2 mm
Width1.25 mm
Height1.25 mm
Pad Dimension0.5 mm
Packaging7" Tape & Reel 
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74479275147
SPECWE-PMCI Power Molded Chip Inductor, –, –
Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-PMCI Power Molded Chip Inductor
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Size201210 
Operating Temperature -40 °C up to +125 °C
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Length2 mm
Width1.25 mm
Height1 mm
Pad Dimension0.5 mm
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Inductance0.47 µH
Performance Rated Current4.3 A
Saturation Current @ 10%2.55 A
Saturation Current @ 30%5.15 A
DC Resistance44 mΩ
Self Resonant Frequency120 MHz
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