MP2104

NOT RECOMMENDED FOR NEW DESIGNS

1.7MHz, 600mA Synchronous Step-Down Converter

ALTERNATIVE PART

NRFND Datasheet

MP2104 continues to be in production for existing customers. Please consider this alternative for new designs:

MP2141N

1A, Synchronous, Step-Down Converter with 11µA Quiescent Current in SOT563

Features & Benefits

Low Quiescent Current: 11μA
2.2MHz Switching Frequency
EN for Power Sequencing
Power Good Only for Fixed Output Version
Wide 2.3V-to-5.5V Operating Input Range
Output Adjustable from 0.6V
Up to 1A Output Current
120mΩ and 80mΩ Internal Power MOSFET Switches
Output Discharge
Short-Circuit Protection (SCP) with Hiccup Mode
Stable with Low ESR Output Ceramic Capacitors
100% Duty Cycle
Available in a SOT563 Package

… and many more!

Description

The MP2104 is a 1.7MHz constant frequency, current mode, PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. It is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) battery. The MP2104 can supply 600mA of load current from a 2.5V to 6V input voltage. The output voltage for the MP2104DJ can be regulated as low as 0.6V, while the output voltages of the MP2104DJ 1.5 and MP2104DJ 1.8 are fixed at 1.5V and 1.8V, respectively. The MP2104 can also run at 100% duty cycle for low dropout applications. The MP2104 is available in low profile (1mm) 5 pin TSOT and 0.75mm TQFN-6 packages.

Features & Benefits

High Efficiency: Up to 95%
1.7MHz Constant Switching Frequency
600mA Available Load Current
2.5V to 6V Input Voltage Range
Output Voltage as Low as 0.6V
100% Duty Cycle in Dropout
Current Mode Control
Short Circuit Protection
Thermal Fault Protection
<0.1μA Shutdown Current
1.5V and 1.8V Fixed Output Versions
Space Saving 5-Pin TSOT23 and 6-pin thin QFN Packages

Active Part Numbers:

MP2104DJ-1.5-LF-P MP2104DJ-1.5-LF-Z MP2104DJ-1.8-LF-P MP2104DJ-1.8-LF-Z MP2104DJ-LF-P MP2104DJ-LF-Z MP2104DQT-LF-P MP2104DQT-LF-Z MP2104DJ-1.5-LF MP2104DJ-1.8-LF MP2104DJ-LF MP2104DK-LF MP2104DK-LF-P MP2104DK-LF-Z MP2104DQT-LF MP2104XN

Meaning of P & Z

Design Resources