LTC3306 Series

1.75A Synchronous Step-Down Regulator in 1.6mm × 1mm WLCSP

Catalog

1.75A Synchronous Step-Down Regulator in 1.6mm × 1mm WLCSP

Part	Frequency - Switching	Package / Case	Topology	Mounting Type	Voltage - Input (Min) [Min]	Output Type	Output Configuration	Operating Temperature [Min]	Operating Temperature [Max]	Number of Outputs	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed) [Min]	Supplier Device Package [x]	Supplier Device Package [y]	Supplier Device Package	Current - Output	Function	Voltage - Output (Max) [Max]	Voltage - Output (Min/Fixed)	Output Type
Analog Devices LTC3306AACBZ-R7	2 MHz	6-WFBGA WLCSP	Buck	Surface Mount	2.25 V	Programmable	Positive	-40 °C	125 ¯C	1	5.5 V	0.5 V	1.64	1.03	6-WLCSP	1.75 A	Step-Down	3.65 V
Analog Devices LTC3306AACBZ-1.2-R7	2 MHz	6-WFBGA WLCSP	Buck	Surface Mount	2.25 V		Positive	-40 °C	125 ¯C	1	5.5 V		1.64	1.03	6-WLCSP	1.75 A	Step-Down		1.2 V	1.81 mOhm
Analog Devices LTC3306CACBZ-R7	2 MHz	6-WFBGA WLCSP	Buck	Surface Mount	2.25 V	Programmable	Positive	-40 °C	125 ¯C	1	5.5 V	0.5 V	1.64	1.03	6-WLCSP	1.75 A	Step-Down	3.65 V
Analog Devices LTC3306CACBZ-1.2-R7	2 MHz	6-WFBGA WLCSP	Buck	Surface Mount	2.25 V		Positive	-40 °C	125 ¯C	1	5.5 V		1.64	1.03	6-WLCSP	1.75 A	Step-Down		1.2 V	1.81 mOhm

Catalog

1.75A Synchronous Step-Down Regulator in 1.6mm × 1mm WLCSP

Key Features

• VOUTRange: 0.5V to 3.65V

• 2MHz Switching Frequency

• Low Ripple Burst Mode®or Forced Continuous Mode of Operation

• High Efficiency: 30mΩ NMOS, 100mΩ PMOS

• Peak Current Mode Control

• 22ns Minimum On-Time

• Wide Bandwidth, Fast Transient Response

• Safely Tolerates Inductor Saturation in Overload

• VINRange: 2.25V to 5.5V

• VOUTAccuracy: ±1.0%

• Precision 400mV Enable Threshold

• Low Shutdown Current (1μA)

• Internal Compensation

• Internal Soft-Start

• Power Good Output

• Tiny WLCSP Package and Few Tiny External Components Yield a Complete Solution Size of 9mm2

Description

The LTC3306 is a very small, high efficiency, low noise, monolithic synchronous step-down DC/DC converter capable of providing as much as 1.75A average output current from a 2.25V to 5.5V input supply. Using constant frequency, peak current mode control at 2MHz switching frequency, and with a minimum on-time of 22ns, this regulator achieves fast transient response and precise regulation in an extremely small solution size.The LTC3306 is available in forced continuous mode for lower noise, or low-ripple Burst Mode operation for higher efficiency at light load.The LTC3306 is available with an external resistor programmable output or with fixed output voltages from 500mV to 3.65V in 50mV increments, and 100% duty cycle operation delivers very low drop out voltage.Other features include a high precision PGOOD output, a precision enable threshold, output overvoltage protection, thermal shutdown, and output short-circuit protection. This device is available in a 6-pin 1.6mm × 1mm, 0.5mm pitch WLCSP package.APPLICATIONSGeneral Purpose, Industrial, GSM SuppliesDistributed DC Power Systems (POL)FPGA, ASIC, μP Core Supplies