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MaxLinear XR77103ELBTR product image
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MaxLinear XR77103ELBTRRoHS

Manufacturer
MaxLinear
MPN
XR77103ELBTR
LCSC Part #
C2070915
Packaging
QFN-32-EP(4x4)
Customer #
Key Attributes
2.2MHz Step-down type Adjustable 2A 800mV~6V QFN-32-EP(4x4) Voltage Regulators - DC DC Switching Regulators RoHS
Datasheetpdf iconMaxLinear XR77103ELBTR
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QtyUnit PriceTotal Amount
1+$ 4.9163$ 4.92
10+$ 4.7993$ 47.99
30+$ 4.7214$ 141.64
100+$ 4.6434$ 464.34
Standard Packaging3000/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerMaxLinear
PackagingQFN-32-EP(4x4)
Operating Temperature-40℃~+125℃@(TJ)
Frequency - Switching2.2MHz
FunctionStep-down type
Number of Outputs3
FeaturesAdjustable current limiting;Adjustable soft-start;Frequency synchronization;Operating status indication;Light load efficient mode;Overcurrent Protection
Output TypeAdjustable
TopologyBuck
Operating Voltage4.5V~14V
Switch tube (built-in/external)Built-in
Output Current2A
Output Voltage800mV~6V
Quiescent Current-
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Introduction

AI Translation

The XR77103 features three high efficiency, wide input range, synchronous buck converters. Each converter is digitally programmable requiring minimal external components, thus providing the smallest size solution possible. The converters can operate in 5V, 9V, and 12V systems and have integrated power switches. The output voltage of each converter can be adjusted by programming the values in the V_OUT setting registers through the I²C interface. The adjustable range is 0.8V to 6V with 50mV resolution. The output voltage also can be set externally using an external resistor divider. The output sequence among the outputs, soft-start time, and the peak inductor current limit are also set through I²C. The switching frequency of the converters can either be set with I²C or can be synchronized to an external clock connected to SYNC pin if needed. The switching regulators are designed to operate from 440kHz to 2.3MHz. Each converter operates in phase or out-of-phase according to the value in the phase setting register. This can minimize the input filter requirements. XR77103 features a supervisor circuit that monitors each converter output. The PGOOD pin is asserted once sequencing is done, all outputs are reported in regulation, and the reset timer expires. The polarity of the signal is active high. XR77103 also features a light load pulse skipping mode (PSM). It is set through I²C. The PSM mode allows for a reduction on the input power supplied to the system when the host processor is in stand-by (low activity) mode.

Features

AI Translation
  • 4.5V to 14V wide input supply voltage range
  • Built-In MOSFET and synchronous rectifier
  • I²C programmable supplies Output voltage (0.8V to 6V) Power on sequence Soft-start timing Switching frequency (440kHz to 2.3MHz) Individual current limit Optional power saving mode at light loads
  • Non volatile memory (NVM) with up to 10,000 times write operation
  • High accuracy 0.8V reference (1%)
  • Current-mode control with simple compensation circuit
  • External synchronization
  • Power good
  • Protection Thermal shutdown Overvoltage transient protection Overcurrent protection
  • 32-pin 4mm x 4mm TQFN package

Applications

AI Translation
  • FPGA and DSP supplies
  • Video processor supplies
  • Applications processor power