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MAX8902B

Maxim Integrated Products
Part Number MAX8902B
Manufacturer Maxim Integrated Products
Description Low-Noise 500mA LDO Regulators
Published May 4, 2009
Detailed Description 19-0990; Rev 2; 2/08 KIT ATION EVALU E L B AVAILA Low-Noise 500mA LDO Regulators in a 2mm x 2mm TDFN Package General D...
Datasheet PDF File MAX8902B PDF File

MAX8902B
MAX8902B

Overview
19-0990; Rev 2; 2/08 KIT ATION EVALU E L B AVAILA Low-Noise 500mA LDO Regulators in a 2mm x 2mm TDFN Package General Description ♦ 1.
7V to 5.
5V Input Voltage Range ♦ 0.
6V to 5.
3V Output Voltage Range ♦ 16µVRMS Output Noise, 10Hz to 100kHz ♦ 80µA Operating Supply Current ♦ 92dB PSRR at 5kHz ♦ Guaranteed 500mA Output Current ♦ ±1.
5% Output Accuracy Over Load, Line, and Temperature ♦ 100mV (max) Dropout at 500mA Load ♦ < 1µA Shutdown Supply Current ♦ 700mA Short-Circuit Protection ♦ Thermal-Overload Protection ♦ Output-to-Input Reverse Current Protection ♦ 2mm x 2mm x 0.
8mm TDFN Package www.
datasheet4u.
com Features MAX8902A/MAX8902B The MAX8902A/MAX8902B low-noise linear regulators deliver up to 500mA of output current with only 16µVRMS of output noise in a 100kHz bandwidth.
These regulators maintain their output voltage over a wide input range, requiring only 100mV of input-to-output headroom at full load.
These LDOs maintain a low 80µA typical supply current, independent of the load current and dropout voltage.
The regulator control circuitry includes a programmable soft-start circuit and short circuit, reverse current, and thermal-overload protection.
Other features include an enable input and a power-OK output (MAX8902B only).
The MAX8902A output voltage can be set to 1.
5V, 1.
8V, 2.
0V, 2.
5V, 3.
0V, 3.
1V, 3.
3V, 4.
6V, or 4.
7V using the SELA and SELB inputs.
The MAX8902B output voltage can be set between 0.
6V and 5.
3V with an external resistor voltage-divider.
Applications Notebook Computers MP3 and Portable Media Players Wireless Headphones GPS Portable Navigation Devices Smartphones MAX8902AATA+ MAX8902BATA+ PART Ordering Information FEATURES Pin-selectable output voltage Adjustable output voltage TOP MARK ABG ABH PKG CODE T822-1 T822-1 +Denotes a lead-free, RoHS-compliant package.
Note: All devices are in an 8-pin, 2mm x 2mm TDFN package with an exposed paddle and operate over the -40°C to +125°C automotive temperature range.
Typical Operating Circuits IN...


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