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MAX38904A/B/C/D
1.7V–5.5V , 2A Low Noise LDO Linear
IN
Regulators in TDFN and WLP
General Description
Benefits and Features
The MAX38904 is a 1.7V–5.5V V , low-noise linear reg-
IN
ulator that delivers up to 2A of output current with only
● Delivers Flexible Operating Range
• 1.7V to 5.5V Input Voltage Range
• 0.6V to 5.0V Programmable Output Voltage
• 2A Maximum Output Current
5.1μV
of output noise from 10Hz to 100kHz. The reg-
RMS
ulator maintains ±1% output accuracy over a wide in-
put voltage range, requiring only 100mV of input-to-output
headroom at full load. The 1.3mA no-load supply current
is independent of dropout voltage.
• 100mV Maximum Dropout at 2A Load
• < 1.5μA Shutdown Supply Current
● Reduces Noise and Improves Accuracy
• ±1% DC Accuracy Over Load, Line, and
Temperature
The output voltage on MAX38904B can be adjusted to a
value in the range of 0.6V to 5.0V by using two external
resistors. The MAX38904B also includes an active-high
POK signal for trouble-free load startup.
• 5.1µV
Output Noise, 10Hz to 100kHz
RMS
• 1.3mA Quiescent Supply Current
• > 70dB PSRR at 10kHz
The MAX38904A has nine pin-selectable output voltages
1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.1V, 3.3V, 4.0V, and 5V.
● Enables Ease-of-Use and Robust Protection
• Stable with 8μF (Min) Output Capacitance
• Programmable Soft-Start Rate
The wafer-level package (WLP) versions of the
MAX38904 are available as C and D variants. The
MAX38904C uses external feedback resistors for adjust-
ing the output voltage, while the MAX38904D has factory
preset output voltages over the range of 0.7V to 5.0V in
50mV steps.
• Overcurrent and Overtemperature Protection
• Output-to-Input Reverse Current Protection
• Power-OK Status Pin
● Reduces Size, Improves Reliability
• 3mm x 3mm 14-pin TDFN Package and 2.2mm x
1.37mm, 5 x 3 Bump, 0.4mm Pitch WLP
• -40ºC to 125ºC Operating Temperature
All versions include a programmable output soft-start rate,
output overcurrent, and thermal overload protection.
The MAX38904A/B are offered in a 3mm x 3mm, 14-pin
TDFN package, while the MAX38904C/D are available in
5 x 3 bump, 2.2mm x 1.37mm WLP, 0.4mm pitch.
Ordering Information appears at end of data sheet.
Applications
● Communication Systems, Test Equipment, Medical
Equipment
● High-End Audio Systems
● High-Resolution Data Acquisition Systems
19-100443; Rev 1; 12/18