A Product Line of
FAST TRANSIENT 3.5A STEP-DOWN CONVERTER
The PAM2327 is a 3.5A step-down synchronous converter. The
1.2MHz switching frequency enables the use of small external
components. The ultra-small 2mm x 2mm footprint and high efficiency
make the PAM2327 an ideal choice for portable applications.
The PAM2327 delivers 3.5A maximum output current while
consuming only 55µA no load quiescent current. Low R integrated
MOSFETs and 100% duty cycle operation make the PAM2327 the
ideal choice for high output voltage, high current applications which
require a low dropout threshold.
The PAM2327 provides excel lent transient response and output
accuracy across the operating range.
The PAM2327 maintains high efficiency throughout the load range.
The PAM2327 automatically optimizes efficiency during light load
mode (PSM) and maintains constant frequency and low output ripple
during PWM mode.
Over-temperature and short circuit protection safeguard the PAM2327
and system components from damage.
The PAM2327 is available in an ultra-small QFN2x2-12 package. The
product is rated over a temperature range of -40°C to +85°C.
Hard Disk Drives
PDAs and Handheld Computers
Portable Media Players
Wireless Network Cards
3.5A Maximum Output Current
Tiny 1.0µH Chip Inductor
Excellent Transient Response
Input Voltage: 2.5V to 5.5V
Adjustable Output Voltage: 1.0V to 4.0V
High Efficiency with 1.2MHz Switching Frequency
55µA No Load Quiescent Current
100% Duty Cycle Low-Dropout Operation
Internal Soft Start
Power Good Indicator
Over-Temperature and Current Limit Protection
Hiccup mode for output short protection
1µA Shutdown Current
-40°C to +85°C Temperature Range
Available in QFN2x2-12 Package
Typical Applications Circuit
Document number: DS36277 Rev. 2 - 2
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