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High-Efficiency, 6A, Current-Mode
Synchronous Step-Down Switching Regulator
MAX15106A/
MAX15106B/
MAX15106C
General Description
Features
● Continuous 6A Output Current
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 pre-
regulation applications.
● 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 × V
● Programmable Soft-Start
IN
● Safe Startup into Prebiased Output
● External Reference Input
The ICs utilize a current-mode control architecture with a
high-gain transconductance error amplifier. The current-
mode control architecture facilitates easy compensation
design and ensures cycle-by-cycle current limit with fast
response to line and load transients.
● 0.9MHz, 1.0MHz, and 1.1MHz Switching Frequency
Options
● Stable with Low-ESR Ceramic Output Capacitors
● Forced PWM Mode
The low R
integrated switches ensure high effi-
DS(ON)
ciency at heavy loads while minimizing critical induc-
tance, 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.
● Enable Input and Power-Good Output for Power-
Supply Sequencing
● Cycle-by-Cycle Overcurrent Protection
The regulator features 0.9MHz (MAX15106A), 1.0MHz
(MAX15106B), and 1.1MHz (MAX15106C) factory-
trimmed fixed frequency PWM-mode operation. The high-
switching frequency, along with the PWM current-mode
architecture allows for a compact, all-ceramic capacitor
design.
● Fully Protected Features Against Overcurrent and
Overtemperature
● Input Undervoltage Lockout
● 20-Bump (4 x 5 Array), 2.5mm x 2mm, WLP Package
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 power-
good output.
Typical Operating Circuit
OUTPUT
LX
PGND
2.7V TO
5.5V
EN
IN
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.
MAX15106A/
FB
MAX15106B/
MAX15106C
INX
Applications
● Distributed Power Systems
COMP
● DDR Memory
● Base Stations
● Portable Devices
● Notebook Power
● Server Power
PGOOD
SS
Ordering Information appears at end of data sheet.
19-8776; Rev 3; 6/21
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