LP6301 POWER | Alldatasheet

Document overview

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Technical content

Features

— Input V oltage Range: 2.5V to 5.5V — Output V oltage Range: 0.6V to VIN — 1500mA Load Current on Each Channel — Up to 95% Efficiency — 100% Duty Cycle in Dropout — < 1 u A Quiescent Current — 1.5MHz Switching Frequency — Soft star Function — Short Circuit Protection — Current Mode Operation — Thermal Fault Protection — 2mm×2mm T D F N - 6 P a c k a g e — RoHS Compliant and 100% Lead (Pb)-Free Typical Application Circuit Marking Information Please see website.

Preliminary Datasheet LP6301 LP6301 – Ver. 1.0 Datasheet Sep.-2007 Functional Pin Description Pin Description Pin NO PIN DESCRIPTION 1 NC No Connect. 2 EN Enable Control Input. Drive EN1 above 1.5V to turn on the Channel. Drive EN below 0.3V to turn it off (shutdown current < 0.1µA). 3 Vin Supply Input. 4 SW Switch Mode Connection to Inductor. This pin connects to the drains of the internal main and s ynchronous power MOSFET switches. 5 GND1 Ground 1. 6 FB Feedback Input. Connect FB to the center point of the external resistor divider. Normal voltage for this pin is 0.6V. Function Block Diagram

Preliminary Datasheet LP6301 LP6301 – Ver. 1.0 Datasheet Sep.-2007 Absolute Maximum Ratings

Electrical Characteristics

(V IN =VEN,Typical values are TA=25℃ ) LP6301 Symbol Parameter Conditions Min. Typ. Max. Unit Step-Down Converter VIN Input V oltage 2.5 5.5 V △VOUT Output V oltage Line Regulation ILOAD = 0 VINB = 2.5V to 5.5V 0.25 0.4 %/v △VFB Reference V oltage Line Re gulation VINB = 2.5V to 5.5V 0.25 0.4 %/v VOUT Output V oltage Range 0.6 VINB V IQ Quiescent Current V FB1=VFB2=0V ,VIN1/IN2=4.2V 270 350 µA ISHDN Shutdown Current ENB = GND 1 µA ILIM P-Channel Current Limit 1.6 1.8 2 A RDS(ON)H High-Side Switch On Resistance 0.28 0.4 RDS(ON)L Low-Side Switch On Resistance 0.3 0.4 ILXLEAK LX Leakage Current VEN1/EN2=0V , VSW1/SW2=0 or 5V , VIN1/IN2=5V 1 µA ∆VLine-reg/∆VIN Line Regulation VINB = 2.8V to 5.5V 0.2 0.4 %/V VFB Feedback Threshold V oltage Accuracy VINB = 3.6V 0.588 0.6 0.612 V IFB FB Leakage Current VOUTB = 1 .0V 30 nA VFB1=VFB2=0.6V 1.2 1.5 1.8 FOSC Oscillator Frequency VFB1=VFB2=0V 0.7 MHz TS Startup Time From Enable to Output Regulation 120 µs TSD Over-Temperature Shutdown Threshold 150 ℃ THYS Over-Temperature Shutdown Hysteresis 20 ℃ VEN(L) Enable Threshold Low 0.4 V VEN(H) Enable Threshold High 0.3 1.0 1.5 V IEN Input Low Current V INB = VENB = 5.5V -1 1 µA

Preliminary Datasheet LP6301 LP6301 – Ver. 1.0 Datasheet Sep.-2007 Typical Operating Characteristics

Preliminary Datasheet LP6301 LP6301 – Ver. 1.0 Datasheet Sep.-2007

Preliminary Datasheet LP6301 LP6301 – Ver. 1.0 Datasheet Sep.-2007

Preliminary Datasheet LP6301 LP6301 – Ver. 1.0 Datasheet Sep.-2007 Packaging Information