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MAX8510

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

Maxim Integrated 

19-2732; Rev 3; 5/06

Ultra-Low-Noise, High PSRR,

Low-Dropout, 120mA Linear Regulators

General Description

The MAX8510/MAX8511/MAX8512 ultra-low-noise, low-

dropout (LDO) linear regulators are designed to deliver

up to 120mA continuous output current. These regula-

tors achieve a low 120mV dropout for 120mA load cur-

rent. 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 volt-

ages 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.

Applications

Cellular and Cordless Phones

PDA and Palmtop Computers

Base Stations

Bluetooth Portable Radios and Accessories

Wireless LANs

Digital Cameras

Personal Stereos

Portable and Battery-Powered Equipment

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

Ordering Information

PART*

TEMP RANGE PIN-PACKAGE

MAX8510EXKxy-T

-40°C to +85°C 5 SC70-5

*xy is the output voltage code (see Output Voltage Selector

Guide). Other versions between 1.5V and 4.5V are available in

100mV increments. Contact factory for other versions.

Ordering Information continued at end of data sheet.

Typical Operating Circuits

INPUT

2V TO 6V

CIN = 1µF

ON

OFF

OUTPUT PRESET

1.5V TO 4.5V

IN

OUT

MAX8510

SHDN

GND

BP CBP = 10nF

COUT = 1µF

Output Voltage Selector Guide appears at end of data sheet.

Typical Operating Circuits continued at end of data sheet.

Pin Configuration

TOP VIEW

IN 1

5 OUT

GND 2

SHDN 3

MAX8510

MAX8511

MAX8512

BP (MAX8510)

4 N.C. (MAX8511)

FB (MAX8512)

N.C. 1

BP (MAX8510)

N.C. (MAX8511) 2

FB (MAX8512)

GND 3

SHDN 4

MAX8510

MAX8511

MAX8512

8 N.C.

7 OUT

6 N.C.

5 IN

SC70

A "+" SIGN WILL REPLACE THE FIRST

PIN INDICATOR ON LEAD-FREE PACKAGES.

TDFN 2mm × 2mm

________________________________________________________________ Maxim Integrated Products 1

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

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