General Description
The MAX15106A/MAX15106B/MAX15106C family of
high-efficiency, current-mode, synchronous step-down
switching regulators with integrated power switches deliver
up to 6A of output current. The regulators operate from
2.7V to 5.5V and provide an output voltage from 0.6V
up to 95% of the input voltage, making the devices ideal
for distributed power systems, portable devices, and preregulation
applications.
The ICs utilize a current-mode control architecture with a
high-gain transconductance error amplifier. The currentmode
control architecture facilitates easy compensation
design and ensures cycle-by-cycle current limit with fast
response to line and load transients.
The low RDS(ON) integrated switches ensure high efficiency
at heavy loads while minimizing critical inductance,
making the layout design a much simpler task with
respect to discrete solutions. The ICs’ simple layout and
footprint assures first-pass success in new designs.
The regulator features 0.9MHz (MAX15106A), 1.0MHz
(MAX15106B), and 1.1MHz (MAX15106C) factorytrimmed
fixed frequency PWM-mode operation. The highswitching
frequency, along with the PWM current-mode
architecture allows for a compact, all-ceramic capacitor
design.
The IC features a capacitor-programmable soft-start
to reduce input inrush current. Internal control circuitry
ensures safe startup into a prebiased output. Power
sequencing is controlled with the enable input and powergood
output.
The IC is available in a 20-bump (4 x 5 array), 2.5mm x
2mm WLP package and is fully specified over the -40°C
to +105°C temperature range.

Applications
● Distributed Power Systems
● DDR Memory
● Base Stations
● Portable Devices
● Notebook Power
● Server Power

Features
● Continuous 6A Output Current
● Efficiency Up to 96%
● ±1% Accuracy Over Load, Line, and Temperature
● Operates from a 2.7V to 5.5V Supply
● Adjustable Output from 0.6V to 0.95 × VIN
● Programmable Soft-Start
● Safe Startup into Prebiased Output
● External Reference Input
● 0.9MHz, 1.0MHz, and 1.1MHz Switching Frequency
Options
● Stable with Low-ESR Ceramic Output Capacitors
● Forced PWM Mode
● Enable Input and Power-Good Output for Power-
Supply Sequencing
● Cycle-by-Cycle Overcurrent Protection
● Fully Protected Features Against Overcurrent and
Overtemperature
● Input Undervoltage Lockout
● 20-Bump (4 x 5 Array), 2.5mm x 2mm, WLP Package