LX1912 EVAL KIT

LX1912 EVAL KIT Datasheet

LX1912

Part	Datasheet
LX1912 EVAL KIT	LX1912 EVAL KIT (pdf)

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.COM LX1912 VREF 800mV, 1.0A, 1.2MHz PWM PRODUCTION DATA SHEET KEY FEATURES The LX1912 operates as a Current The regulator is capable of providing Internal Reference 800mv ±2% Mode PWM Buck regulator that an output load current of 1.0A, has no Accuracy Line and Temp. 4.0V to 6.0V Input Range switches to PFM mode with light minimum load current requirement for Internal Soft Start loads. The entire regulator function is implemented with few external components. The LX1912 responds quickly to dynamic load changes using a high bandwidth error amplifier and internal compensation. Tight output voltage regulation is maintained with the e compensated 800mV, ±2% reference line and temp regulation . With two t external resistors the output voltage is easily programmed, from 800mV to 90% of VIN. stable operation. Current limit is cycle-by-cycle to protect the switch. Power conversion efficiency is maximized with low regulator IQ and PFM mode of operation The LX1912 operational range covers 4.0V to 6.0V, features include power on delay soft start to limit inrush currents and thermal shutdown during fault conditions. The 6-pin TSOT package provides a small form factor with excellent power dissipation capability. IMPORTANT For the most current data, consult MICROSEMI’s website: Adj. Output From 0.8V to 90% of VIN Output Current up to 1.0A Quiescent Current < 550uA, Typical 23°C 1.2MHz PWM Frequency Over Voltage Protection Portable Microprocessor Core Voltage Supplies 5V to 3V RoHS Compliant Product le PRODUCT HIGHLIGHT 4V to 6V so 4.7µF VPWR SW VCC LXP1a9rt12 N.C. EFFICIENCY 2.7µH 31.6K 3.3V 1.0A 30µF EFFICIENCY VIN = 5V, VOUT 3.3V 95% OUTPUT CURRENT Amps bFigure 1 LX1912 Circuit Topology and Typical Efficiency Performance O SG TA °C PACKAGE ORDER INFO

PDF Datasheet Preview

.COM

LX1912

VREF 800mV, 1.0A, 1.2MHz PWM

PRODUCTION DATA SHEET

KEY FEATURES

The LX1912 operates as a Current The regulator is capable of providing

Internal Reference 800mv ±2%

Mode PWM Buck regulator that an output load current of 1.0A, has no

Accuracy Line and Temp. 4.0V to 6.0V Input Range
switches to PFM mode with light minimum load current requirement for

Internal Soft Start
loads. The entire regulator function is implemented with few external components.

The LX1912 responds quickly to dynamic load changes using a high bandwidth error amplifier and internal compensation. Tight output voltage regulation is maintained with the
e compensated 800mV, ±2% reference
line and temp regulation . With two
t external resistors the output voltage is
easily programmed, from 800mV to 90% of VIN.
stable operation. Current limit is cycle-by-cycle to protect the switch. Power conversion efficiency is maximized with low regulator IQ and PFM mode of operation

The LX1912 operational range covers 4.0V to 6.0V, features include power on delay soft start to limit inrush currents and thermal shutdown during fault conditions.

The 6-pin TSOT package provides a small form factor with excellent power dissipation capability.

IMPORTANT For the most current data, consult MICROSEMI’s website:

Adj. Output From 0.8V to 90% of VIN

Output Current up to 1.0A Quiescent Current < 550uA,

Typical 23°C 1.2MHz PWM Frequency Over Voltage Protection

Portable Microprocessor Core Voltage Supplies
5V to 3V RoHS Compliant Product
le PRODUCT HIGHLIGHT
4V to 6V
so 4.7µF

VPWR SW VCC

LXP1a9rt12

N.C.

EFFICIENCY
2.7µH
31.6K
3.3V 1.0A 30µF

EFFICIENCY VIN = 5V, VOUT 3.3V 95%

OUTPUT CURRENT Amps
bFigure 1 LX1912 Circuit Topology and Typical Efficiency Performance

O SG TA °C

PACKAGE ORDER INFO

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Datasheet ID: LX1912EVALKIT 649011