High Efficiency, 2A, 6V, 1.5MHz, 17uA Iq, COT Synchronous Step Down Converter with better Vfb accuracy and better load regulation in QFN package
The MP9162A is a monolithic, step-down, switch-mode converter with built-in, internal power MOSFETs. It can achieve 2A of continuous output current from a 2.5V-to-6V input voltage with excellent load and line regulation. The output voltage can be regulated as low as 0.6V.
The constant-on-time (COT) control scheme provides a fast transient response and eases loop stabilization. Fault condition protections include cycle-by-cycle current limiting and thermal shutdown.
The MP9162A is available in a small QFN-8 (2.0mmx1.5mm) package and requires only a minimal number of readily available, standard, external components.
The MP9162A is ideal for a wide range of applications, including high-performance DSPs, FPGAs, PDAs, and portable instruments.
- Very Low IQ: 17μA
- Default 1.5MHz Switching Frequency
- 1.5% VFB Accuracy
- EN and Power Good for Power Sequencing
- Wide 2.5V to 6V Operating Input Range
- Output Adjustable from 0.6V
- Up to 2A of Output Current
- 100% Duty Cycle in Dropout
- 110mΩ and 60mΩ Internal Power MOSFET Switches
- Cycle-by-Cycle Over-Current Protection (OCP)
- Short-Circuit Protection (SCP) with Hiccup Mode
- Stable with Low ESR Output Ceramic Capacitors
- Available in a QFN-8 (1.5mmx2.0mm) Package
- fsw (max) (kHz)1500
- Vin (max) (V)6
- Iout (max) (A)2
- Isw Limit (typ) (A)3.2
- Max Duty Cycle (%)1
- Vfb (typ) (V)0.6
- Iq (typ) (mA)0.017
- Vout (max) (V)6
- Vout (min) (V)0.6
- PackageQFN-8 (2.0x1.5)
- Control ModeCOT
- Common FeaturesLight-Load Efficiency, Power Good, Synchronous Rectification
- Special Features100% 占空比