300mA CMOS LDO Regulator with 15μA Quiescent Current

RT9170

The RT9170 is CMOS ultra low quiescent current and low dropout (ULDO) regulators. The devices are capable of supplying 300mA of output current continuously.
The RT9170's performance is optimized for battery- powered systems to deliver 15μA ultra low quiescent current and extremely low dropout voltage. Regulator ground current increases only slightly in dropout, further prolonging the battery life. The other features include ultra low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio.
The devices are available in fixed output voltages range of 1.2V to 3.3V with 0.1V per step. The RT9170 regulators are available in SOT-23-3, SOT-23-5 and 3-lead SOT-89 packages.

Applications

Cellular Phones and Pagers
Battery-Powered Equipment
Laptop, Palmtops, Notebook Computers
Hand-Held Instruments
PCMCIA Cards

Key Spec.

	RT9170
Status	Active
Vin (min) (V)	2
Vin (max) (V)	5.5
Vout (min) (V)	1.2
Vout (max) (V)	3.3
Output Adj. Method	Fixed
Accuracy (+/- %)	2
Iout (max) (mA)	300
Iq (typ) (uA)	15
Vdropout @ rated current (typ) (mV)	240 @ 0.3A
Cout Type	Ceramic
Features	Enable Input;Low Dropout;OCP
Package Type	SOT-23;SOT-25

Features

Ultra-Low Quiescent Current (Typically 15μA)
Guaranteed 300mA Output Current
Low Dropout : 240mV at 300mA
Wide Operating Voltage Ranges : 2V to 5.5V
Fast Transient Response
Tight Load and Line Regulation
TTL-Logic-Controlled Enable Input
Current Limiting & Thermal Protection
Only 1μF Output Capacitor Required for Stability
High Power Supply Rejection Ratio
Custom Voltage Available
RoHS Compliant and 100% Lead (Pb)-Free

Datasheet

DS9170-14.pdf

Datasheet

DS9170-14.pdf