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Diodes Incorporated AP612051Q | Demoboard AP612051QZ6-EVM
2.5V to 5.5V INPUT AUTOMOTIVE GRADE, 1A/2A LOW IQ SYNCHRONOUS BUCK CONVERTER
Overview
| Topology | Buck Converter |
| Input voltage | 2.5-5.5 V |
| Output 1 | 3.6 V / 2 A |
| IC revision | 1.1 |
Description
The AP61105XQ/AP61205XQ/AP61305XQ are step-down, 1A/2A/3A,synchronous buck converters with a wide input voltage range of 2.5V to5.5V. The device fully integrates a 100mΩ high-side power MOSFETand a 67mΩ low-side power MOSFET to provide high-efficiency DC-DCconversion.The AP61105XQ/AP61205XQ/AP61305XQ device easily used byminimizing the external component count due to its adoption of PeakCurrent Mode (PCM) control with internal compensation to achieve fasttransient response, easy loop stabilization, and low output voltageripple. The output is adjustable from 0.6V to the input voltage. Thismakes the AP61105XQ/AP61205XQ/AP61305XQ an ideal choice forhigh output voltage, high current applications which require a lowdropout threshold. The AP61105XQ/AP61205XQ/AP61305XQoperates in Pulse Frequency Mode (PFM) at light load condition tomaintain high efficiency.The devices are available in a SOT563 package.
Features
- AEC-Q100 Qualified with the Following Results▪ Device Temperature Grade 1: -40°C to +125°C TA Range▪ Device HBM ESD Classification Level H2▪ Device CDM ESD Classification Level C5
- VIN: 2.5V to 5.5V
- Output Voltage (VOUT): 0.6V to 3.6V
- 1A/2A/3A Continuous Output Current
- 0.6V ± 2% Reference Voltage
- 40μA Low Quiescent Current (Pulse Frequency Modulation)
- 2.4MHz Switching Frequency Options
- Up to 90% Efficiency at 5mA Light Load
- Low-Dropout (LDO) Mode
- Various MODE Operation Options▪ Pulse Frequency Modulation▪ Pulse Width Modulation Regardless of Output Load
- Power-Good Indicator
- Protection Circuitry▪ Undervoltage Lockout (UVLO)▪ VIN Overvoltage Protection (OVP)▪ Peak Current Limit▪ Valley Current Limit▪ Thermal Shutdown
Typical applications
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | Q(%) | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | L(µH) | IR(A) | ISAT1(A) | ISAT2(A) | RDC max.(mΩ) | fres(MHz) | Pins | Type | Mount | Working Voltage(V (AC)) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 10 V(DC), 33 pF, ±5% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 10 V(DC) | Capacitance33 pF | Capacitance±5% | Rated Voltage10 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | Q-Factor1000 % | – | Insulation Resistance10 GΩ | Ceramic TypeNP0 Class I | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 10 V(DC), 100 nF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 10 V(DC) | Capacitance100 nF | Capacitance±10% | Rated Voltage10 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor5 % | Insulation Resistance5 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | |||||
 | WE-PMCI Power Molded Chip Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PMCI Power Molded Chip Inductor | – | – | – | Size252010 | Operating Temperature -40 °C up to +125 °C | – | – | – | – | Length2.5 mm | Width2 mm | Height1 mm | Pad Dimension0.6 mm | – | Inductance1 µH | Rated Current4.9 A | Saturation Current 12.4 A | Saturation Current 25.1 A | DC Resistance52 mΩ | Self Resonant Frequency85 MHz | Pins2 | – | MountSMT | – | ||||
 | WR-PHD Pin Header - Single, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | Insulation Resistance1000 MΩ | – | Length101.6 mm | – | – | – | PackagingBag | – | Rated Current3 A | – | – | – | – | Pins40 | TypeStraight | MountTHT | Working Voltage250 V (AC) |