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Ultra-Low-Noise, High PSRR, Low-Dropout, 120mA Linear Regulators

Low-Noise, Low-Dropout, 120mA Linear Regulators Fit in an SC70 Package without Compromising Performance

Product Details

The MAX8510/MAX8511/MAX8512 ultra-low-noise, low-dropout (LDO) linear regulators are designed to deliver up to 120mA continuous output current. These regulators achieve a low 120mV dropout for 120mA load current. The MAX8510 uses an advanced architecture to achieve ultra-low output voltage noise of 11µVRMS and PSRR of 54dB at 100kHz.

The MAX8511 does not require a bypass capacitor, hence achieving the smallest PC board area. The MAX8512's output voltage can be adjusted with an external divider.

The MAX8510/MAX8511 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 MAX8510/MAX8511/MAX8512 maintain very low ground current (40µA).

The regulators are designed and optimized to work with low-value, low-cost ceramic capacitors. The MAX8510 requires only 1µF (typ) of output capacitance for stability with any load. When disabled, current consumption drops to below 1µA.

Package options include a 5-pin SC70 and a tiny 2mm x 2mm x 0.8mm TDFN package.

Key Features

  • Space-Saving SC70 and TDFN (2mm x 2mm) Packages
  • 11µVRMS Output Noise at 100Hz to 100kHz Bandwidth (MAX8510)
  • 78dB PSRR at 1kHz (MAX8510)
  • 120mV Dropout at 120mA Load
  • Stable with 1µF Ceramic Capacitor for Any Load
  • Guaranteed 120mA Output
  • Only Need Input and Output Capacitors (MAX8511)
  • Output Voltages: 1.5V, 1.8V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 3V, 3.3V, 4.5V (MAX8510/MAX8511) and Adjustable (MAX8512)
  • Low 40µA Ground Current
  • Excellent Load/Line Transient
  • Overcurrent and Thermal Protection

Applications/Uses

  • Base Stations
  • Bluetooth® Portable Radios and Accessories
  • Cellular and Cordless Phones
  • Digital Cameras
  • PDA and Palmtop Computers
  • Personal Stereos
  • Portable and Battery-Powered Equipment
  • Wireless LANs
Parametric specs for Linear Regulators
VIN (V) (min) 2
VIN (V) (max) 6
Adj. VOUT (V) (min) -
Adj. VOUT (V) (max) -
Rated ILOAD (mA) 120
Preset VOUT (V) 3
Special Order Preset 2.5 to 4.5 by 0.1
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.12
ICC (µA) (max) 90
Output Voltage Noise (µV RMS) (typ) 11
Ref. Bypass Yes
Low Batt./ Pwr. Fail Out No
Watchdog No
Reverse Batt. Protect. No
Oper. Temp. (°C) -40 to +85
Package/Pins SC70/5
TDFN/8
Budgetary
Price (See Notes)
$0.54 @1k
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Simplified Block Diagram

MAX8510, MAX8511, MAX8512: Functional Diagram MAX8510, MAX8511, MAX8512: Functional Diagram Zoom icon

Technical Docs

Design & Development

Click any title below to view the detail page where available.

Description

The MAX11205PMB1 peripheral module provides the necessary hardware to interface the MAX11205 16-bit ADC to any system that utilizes Pmod™-compatible expansion ports configurable for GPIO interface. The IC is an ultra-low-power (< 300µA max active current), high-resolution, serial-output ADC. This device provides the highest resolution per unit power in the industry and is optimized for applications that require very high dynamic range with low power, such as sensors on a 4mA to 20mA industrial control loop. The voltage reference for the IC is supplied by a MAX6037 (2.5V) that is also on the module. The filtered power-supply voltage from the host can be optionally passed (jumper selectable) through a MAX8510 ultra-low-noise LDO, allowing empirical evaluation of performance with different power sources.
Refer to the MAX11205 IC data sheet for detailed information regarding operation of the IC.

View Details

Features

  • 16-Bit Full-Scale Resolution
  • Internal System Clock
  • 2-Wire Serial Interface
  • On-Board Voltage Reference (MAX6037, 2.5V Version)
  • Filtered Power Supply with Optional (Jumper-Selectable) Ultra-Low Noise LDO
  • 6-Pin Pmod-Compatible Connector (GPIO)
  • Example Software Written in C for Portability
  • RoHS Compliant
  • Proven PCB Layout
  • Fully Assembled and Tested

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Support & Training

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Parameters

Parametric specs for Linear Regulators
VIN (V) (min) 2
VIN (V) (max) 6
Adj. VOUT (V) (min) -
Adj. VOUT (V) (max) -
Rated ILOAD (mA) 120
Preset VOUT (V) 3
Special Order Preset 2.5 to 4.5 by 0.1
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.12
ICC (µA) (max) 90
Output Voltage Noise (µV RMS) (typ) 11
Ref. Bypass Yes
Low Batt./ Pwr. Fail Out No
Watchdog No
Reverse Batt. Protect. No
Oper. Temp. (°C) -40 to +85
Package/Pins SC70/5
TDFN/8
Budgetary
Price (See Notes)
$0.54 @1k

Key Features

  • Space-Saving SC70 and TDFN (2mm x 2mm) Packages
  • 11µVRMS Output Noise at 100Hz to 100kHz Bandwidth (MAX8510)
  • 78dB PSRR at 1kHz (MAX8510)
  • 120mV Dropout at 120mA Load
  • Stable with 1µF Ceramic Capacitor for Any Load
  • Guaranteed 120mA Output
  • Only Need Input and Output Capacitors (MAX8511)
  • Output Voltages: 1.5V, 1.8V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 3V, 3.3V, 4.5V (MAX8510/MAX8511) and Adjustable (MAX8512)
  • Low 40µA Ground Current
  • Excellent Load/Line Transient
  • Overcurrent and Thermal Protection

Applications/Uses

  • Base Stations
  • Bluetooth® Portable Radios and Accessories
  • Cellular and Cordless Phones
  • Digital Cameras
  • PDA and Palmtop Computers
  • Personal Stereos
  • Portable and Battery-Powered Equipment
  • Wireless LANs

Description

The MAX8510/MAX8511/MAX8512 ultra-low-noise, low-dropout (LDO) linear regulators are designed to deliver up to 120mA continuous output current. These regulators achieve a low 120mV dropout for 120mA load current. The MAX8510 uses an advanced architecture to achieve ultra-low output voltage noise of 11µVRMS and PSRR of 54dB at 100kHz.

The MAX8511 does not require a bypass capacitor, hence achieving the smallest PC board area. The MAX8512's output voltage can be adjusted with an external divider.

The MAX8510/MAX8511 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 MAX8510/MAX8511/MAX8512 maintain very low ground current (40µA).

The regulators are designed and optimized to work with low-value, low-cost ceramic capacitors. The MAX8510 requires only 1µF (typ) of output capacitance for stability with any load. When disabled, current consumption drops to below 1µA.

Package options include a 5-pin SC70 and a tiny 2mm x 2mm x 0.8mm TDFN package.

Simplified Block Diagram

MAX8510, MAX8511, MAX8512: Functional Diagram MAX8510, MAX8511, MAX8512: Functional Diagram Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal