MIC3385 Series

8MHz Power Module System in 14-ld MLF

Catalog

8MHz Power Module System in 14-ld MLF

Part	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply [Min]	Voltage - Supply [Max]	w/LED Driver	w/Supervisor	Topology	Supplier Device Package	Mounting Type	Frequency - Switching	Package / Case	Number of Outputs	Voltage/Current - Output 2	Voltage/Current - Output 1 [Max] [custom]	Voltage/Current - Output 1 [Max] [custom]	w/Sequencer	Voltage/Current - Output 1 [custom]	Voltage/Current - Output 1 [custom]
Microchip Technology MIC3385YHL-TR	125 °C	-40 °C	2.7 V	5.5 V			Linear (LDO) (1) Step-Down (Buck) Synchronous (1)	14-MLF® (3x3.5)	Surface Mount	8 MHz	14-MLF® 14-VFDFN Exposed Pad	2	1 V 120 mA	1 A	1 V
Microchip Technology MIC3385-1.5YHL-TR	125 °C	-40 °C	2.7 V	5.5 V			Linear (LDO) (1) Step-Down (Buck) Synchronous (1)	14-MLF® (3x3.5)	Surface Mount	8 MHz	14-MLF® 14-VFDFN Exposed Pad	2	1.5 V 120 mA				1 A	1.5 V

Catalog

8MHz Power Module System in 14-ld MLF

Key Features

• * 2.7 to 5.5V supply voltage

• * 18µA quiescent current

• * Low noise, 75µVrms

• * Output current to 600mA

• * >90% efficiency

• * 100% maximum duty cycle

• * Adjustable output voltage option down to 1V

• * Ultra-fast transient response

• * No external inductor required

• * Enables sub 1mm profile solution

• * Fully integrated MOSFET switches

• * Micropower shutdown

• * Thermal shutdown and current limit protection

• * Pb-free 14-pin 3mm x 3.5mm package

• * -40°C to +125°C junction temperature range

Description

The MIC3385 is a high efficiency inductorless buck regulator that features a LowQ® LDO standby mode that draws only 18µA of quiescent current. The MIC3385 requires no external inductor enabling an ultra-low noise, small size, and high efficiency solution for portable power applications. In PWM mode, the MIC3385 operates with a constant frequency 8MHz PWM control. Under light load conditions, such as in system sleep or standby modes, the PWM switching operation can be disabled to reduce switching losses. In this light load LowQ® mode, the LDO maintains the output voltage and draws only 18µA of quiescent current. The LDO mode of operation saves battery life while not introducing spurious noise and high ripple as experienced with pulse skipping or bursting mode regulators. The MIC3385 operates from 2.7V to 5.5V input and features internal power MOSFETs that can supply up to 600mA output current in PWM mode. It can operate with a maximum duty cycle of 100% for use in low-dropout conditions. The MIC3385 is available in the 14-pin 3mm x 3.5mm package with a junction operating range from -40°C to +125°C.