LD49300XX12 3A Very low drop for low output voltage regulator

The LD49300xx is a high-bandwidth, low drop-out, 3.0 A voltage regulator, ideal for powering core voltages of low-power microprocessors. The LD49300xx implements a dual supply configuration allowing for very low output impedance and very fast transient response. The LD49300xx requires a bias input supply and a main input supply, allowing for ultra-low input voltages on the main supply rail. The input supply operates from 1.4 V to 5.5 V and the bias supply requires between 3 V and 6 V for proper operation. The LD49300xx offers fixed output voltages from 0.8 V to 1.8 V and adjustable output voltages down to 0.8 V. The LD49300xx requires a minimum output capacitance for stability, and works optimally with small ceramic capacitors.

技术特性

Input voltage range:
- VI= 1.4 V to 5.5 V
- VBIAS= 3 V to 6 V
Stable with ceramic capacitor
±1.5 % initial tolerance
Maximum dropout voltage (VI- VO) of 400 mV over temperature
Adjustable output voltage down to 0.8 V
Ultra fast transient response (up to 10 MHz bandwidth)
Excellent line and load regulation specifications
Logic controlled shutdown option
Thermal shutdown and current limit protection
Junction temperature range: - 25 °C to 125 °C

应用领域

Graphics processors
PC add-in cards
Microprocessor core voltage supply
Low voltage digital ICs
High efficiency linear power supplies
SMPS post regulators

功能框图

LD49300XX12 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
LD49300PT12R	Active	1.4553	1000	PPACK 5	Tape And Reel	-20 °C-125 °C	LD49300PT12R

DATASHEET

描述	版本	大小
LD49300XX12 : 3 A very low drop-out voltage regulator	3	673KB