MIC5205 150mA Low-Noise LDO Regulator

General Description

The MIC5205 is an efficient linear voltage regulator with ultra low-noise output, very low dropout voltage (typically 17mV at light loads and 165mV at 150mA), and very low ground current (600⎧A at 100mA output). The MIC5205 offers better than 1% initial accuracy.

Designed especially for hand-held, battery-powered devices, the MIC5205 includes a CMOS or TTL compatible enable/shutdown control input. When shut down, power consumption drops nearly to zero. Regulator ground current increases only slightly in dropout, further prolonging battery life.

Key MIC5205 features include a reference bypass pin to improve its already excellent low-noise performance, reversed-battery protection, current limiting, and overtemperature shutdown.

The MIC5205 is available in fixed and adjustable output voltage versions in a small SOT-23-5 package.

For low-dropout regulators that are stable with ceramic output capacitors, see the µCap MIC5245/6/7 family. Data sheets and support documentation can be found on Micrel’s web site at www.micrel.com.

Features

• Ultra-low-noise output

• High output voltage accuracy

• Guaranteed 150mA output

• Low quiescent current

• Low dropout voltage

• Extremely tight load and line regulation

• Very low temperature coefficient

• Current and thermal limiting

• Reverse-battery protection

• “Zero” off-mode current

• Logic-controlled electronic enable

Applications

• Cellular telephones

• Laptop, notebook, and palmtop computers

• Battery-powered equipment

• PCMCIA VCC and VPP regulation/switching

• Consumer/personal electronics

• SMPS post-regulator/dc-to-dc modules

• High-efficiency linear power supplies

Absolute Maximum Ratings⁽¹⁾

Supply Input Voltage (V_IN).............................. –20V to +20V

Enable Input Voltage (V_EN)............................. –20V to +20V

Power Dissipation (P_D).................Internally Limited, Note 3

Lead Temperature (soldering, 5 sec.)........................ 260°C

Junction Temperature (T_J) ........................–40°C to +125°C

Storage Temperature (T_S).........................–65°C to +150°C

Operating Ratings⁽²⁾

Input Voltage (V_IN)......................................... +2.5V to +16V

Enable Input Voltage (V_EN).....................................0V to V_IN

Junction Temperature (T_J) ........................–40°C to +125°C

Thermal Resistance, SOT-23-5 (θ_JA)........................ Note 3

Typical Application

Stock Offer (Hot Sell)

CHONGMING GROUP (HK) INT'L CO., LTD. located in Hong Kong and Shenzhen. We are an independent Distributor of Electronic Components,established in 2008. AS a growing fast company, CM GROUP is renowned for its world-class efficiency, excellent services, and extraordinary ability to supply electronic components that are hard to find and even obsolete. We have taken pride in our innovation, reliability and service, especially in the semiconductor marketplace.
Our distribution brands include XILINX，ALTERA，ATMEL, INFINEON, ST,SAMSUNG，TEXAS INSTRUMENTS，ON，TOSHIBA，，MICROCHIP，CYPRESS，FREESCALE，etc. We distributes over 200,000 products ranging from semiconductors to resistors, capacitors, diodes, inductors, connectors, transistors, sensors and so on.
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