300mA, Low Input Voltage, Low Dropout, Low Noise Ultra-Fast Without Bypass Capacitor CMOS LDO Regulator

RT9030A

The RT9030A is a high-performance, 300mA LDO regulator, offering extremely high PSRR and ultra-low dropout. Ideal for portable RF and wireless applications with demanding performance and space requirements. The RT9030A quiescent current as low as 25μA further prolongs the battery life. The RT9030A also works with low ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices.

The RT9030A consumes typical 0.7μA in shutdown mode and has fast turn-on time less than 40μs. The other features include ultra-low dropout voltage, high output accuracy, current limiting protection and high ripple rejection ratio.

Applications

CDMA/GSM Cellular Handsets
Portable Information Appliances
Laptop, Palmtops, Notebook Computers
Hand-Held Instruments
Mini PCI & PCI-Express Cards
PCMCIA & New Cards

Key Spec.

	RT9030A
Status	Active
Vin (min) (V)	1.5
Vin (max) (V)	5.5
Vout (min) (V)	1
Vout (max) (V)	3.3
Output Adj. Method	Fixed
Accuracy (+/- %)	2
Iout (max) (mA)	300
Iq (typ) (uA)	25
Vdropout @ rated current (typ) (mV)	150 @ 300A;250 @ 300A;400 @ 300A
Cout Type	Ceramic
Features	Enable Input;Extra Low Noise;High PSRR;OCP;Output Discharge;Stable with Ceramic Capacitor
Package Type	SOT-25

Features

Wide Operating Voltage Range : 1.5V to 5.5V
Output Voltage Range : 1V to 3.3V
Low Dropout : 300mV at 300mA
Ultra-Low-Noise for RF Application
Ultra-Fast Response in Line/Load Transient
Current Limiting Protection
Thermal Shutdown Protection
High Power Supply Rejection Ratio
Only 1μF Output Capacitor Required for Stability
TTL-Logic-Controlled Shutdown Input
RoHS Compliant and Halogen Free

Datasheet

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Datasheet

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