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MAX8841

Maxim Integrated Products
Part Number MAX8841
Manufacturer Maxim Integrated Products
Description ultra-low-noise low-dropout linear regulators
Published Dec 25, 2006
Detailed Description www.DataSheet4U.com 19-0629; Rev 0; 10/06 Ultra-Low-Noise, High PSRR, Low-Dropout, 150mA Linear Regulators in µDFN Gen...
Datasheet PDF File MAX8841 PDF File

MAX8841
MAX8841


Overview
www.
DataSheet4U.
com 19-0629; Rev 0; 10/06 Ultra-Low-Noise, High PSRR, Low-Dropout, 150mA Linear Regulators in µDFN General Description The MAX8840/MAX8841/MAX8842 ultra-low-noise, lowdropout (LDO) linear regulators are designed to deliver up to 150mA continuous output current.
These regulators achieve a low 120mV dropout for 120mA load current.
The MAX8840 uses an advanced architecture to achieve ultra-low output voltage noise of 11µVRMS and PSRR of 54dB at 100kHz.
The MAX8841 does not require a bypass capacitor, hence achieving the smallest PC board area.
The MAX8842 output voltage can be adjusted with an external divider.
The MAX8840/MAX8841 are preset to a variety of voltages in the 1.
5V to 4.
5V range.
Designed with a p-channel MOSFET series pass transistor, the MAX8840/MAX8841/ MAX8842 maintain very low ground current (40µA).
The regulators are designed and optimized to work with low-value, low-cost ceramic capacitors.
The MAX8840 requires only 1µF (typ) of output capacitance for stability with any load.
When disabled, current consumption drops to below 1µA.
The MAX8840/MAX8841/MAX8842 are available in a tiny 1mm x 1.
5mm x 0.
8mm µDFN.
Features ♦ Space-Saving 1.
0mm x 1.
5mm x 0.
8mm µDFN ♦ 11µVRMS Output Noise at 100Hz to 100kHz Bandwidth (MAX8840) ♦ 78dB PSRR at 1kHz (MAX8840) ♦ 120mV Dropout at 120mA Load ♦ Stable with 1µF Ceramic Capacitor for Any Load ♦ Guaranteed 150mA Output ♦ Only Need Input and Output Capacitors (MAX8841) ♦ Output Voltages: 1.
5V, 1.
8V, 2.
5V, 2.
6V, 2.
7V, 2.
8V, 2.
85V, 3V, 3.
3V, 4.
5V (MAX8840/MAX8841) and Adjustable (MAX8842) ♦ Low 40µA Ground Current ♦ Excellent Load/Line Transient ♦ Overcurrent and Thermal Protection MAX8840/MAX8841/MAX8842 Ordering Information PART* MAX8840ELTxy+T MAX8841ELTxy+T** MAX8842ELT+T** TEMP RANGE -40°C to +85°C -40°C to +85°C -40°C to +85°C PIN-PACKAGE 6 µDFN-6 1.
5mm x 1.
0mm 6 µDFN-6 1.
5mm x 1.
0mm 6 µDFN-6 1.
5mm x 1.
0mm Applications Cellular and Cordless Phones PDA and Palmtop Computers Base Stations Bluetoo...


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