MAX8510_06 Datasheet, PDF (1/11 Pages) Maxim Integrated Products – Ultra-Low-Noise, High PSRR, Low-Dropout, 120mA Linear Regulators

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 11µV_RMS 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
♦ 11µV_RMS 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
C_IN = 1µF
ON
OFF
OUTPUT PRESET
1.5V TO 4.5V
IN
OUT
MAX8510
SHDN
GND
BP ^{CBP = 10nF}
C_OUT = 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
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