LX7186AISG-TR |
Product Status
Obsolete |
Overview
The LX7186A is 1.4MHz fixed frequency, currentmode,synchronous PWM buck (step-down) DC-DC converter, capable of driving a 1A load with high efficiency, excellent line and load regulation. The device integrates synchronous P-channel and N-channel power MOSFET switches with low on-resistance. They accept an input voltage range from 2.5V to 5.5V and will enter 100% duty cycle at dropout making them ideal for powering portable equipment that runs from a single Li-ion battery. A standard series of inductors are available from several different manufacturers optimized for use with the LX7186A. This feature greatly simplifies the design of switch-mode power supplies. The converter includes standard safety features such as over-current, short-circuit and thermal shutdown protection. This device is available in both TSOT-5L and UDFN 2x2 6L packages. Features: Input Supply Range: 2.5V to 5.5V Output Adjustable from 0.6V to VIN – 0.5V 100% Duty Cycle in Dropout Integrated NMOS & PMOS Switches Ourrent Mode Control 1A Maximum Output Current Fixed 1.4MHz Frequency High Efficiency: Up To 96% Built-in Soft-start Built-in OV, UV & OT Protection Built-in Short Circuit Protection RoHS Compliant & Halogen Free TSOT-5L or UDFN 2x2 6L Packages |
Package Carrier: | Tape & Reel |
Electrical Rating | Symbol | Min | Typ | Max | Unit |
---|---|---|---|---|---|
Duty Cycle % | Duty Cycle (%) | 100 | % | ||
Input Voltage | Vin |
2.5 | 5.5 | VDC | |
Output Current (A) | IOUT | 1 | A | ||
Output Voltage (V) | VO | 0.6 | 3.3 | V | |
Phases | Phases | 1 | 1 | Select | |
Quiescent Current | IQ | 62 | 100 | µA | |
Regulated Outputs | OutR | 1 | 1 | Select | |
Supply Voltage | VCC | 2.5 | 5.5 | V | |
Switching Frequency (kHz) | fs | 1.12 | 1.4 | 1.68 | kHz |
Voltage Reference | Vref | 0.59 | 0.6 | 0.61 | V |
Environmental Rating | Symbol | Min | Typ | Max | Unit |
---|---|---|---|---|---|
Operating Temperature | TA | -40 | 85 | °C | |
Storage Temperature (oC) | TSTG | -65 | 150 | °C |
Resources
Datasheets | |
---|---|
LX7186A Datasheet |
App Notes | |
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TN-206:Voltage-Mode, Current-Mode (and Hysteretic Control) |
Reliability | |
---|---|
Quality & Reliability Report - Aliso Viejo, CA, USA - Garden Grove, CA, USA - San Jose, CA, USA |
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