Rainbow Electronics MAX1510 - Manual

General Description
The MAX1510 DDR linear regulator sources and sinks up
to 3A peak (typ) using internal n-channel MOSFETs. This
linear regulator delivers an accurate 0.5V to 1.5V output
from a low-voltage power input (V
IN
= 1.1V to 3.6V). The
MAX1510 uses a separate 3.3V bias supply to power the
control circuitry and drive the internal n-channel
MOSFETs.
The MAX1510 provides current and thermal limits to
prevent damage to the linear regulator. Additionally,
the MAX1510 generates a power-good (PGOOD) signal
to indicate that the output is in regulation. During start-
up, PGOOD remains low until the output is in regulation
for 2ms (typ). The internal soft-start limits the input
surge current.
The MAX1510 powers the active-DDR termination bus
that requires a tracking input reference. The MAX1510
can also be used in low-power chipsets and graphics
processor cores that require dynamically adjustable
output voltages. The MAX1510 is available in a 10-pin
3mm x 3mm thin DFN package.
Applications
Notebook/Desktop Computers
DDR Memory Termination
Active Termination Buses
Graphics Processor Core Supplies
Chipset/RAM Supplies as Low as 0.5V
Features
♦ Internal Power MOSFETs with Current Limit (3A typ)
♦ Fast Load-Transient Response
♦ External Reference Input with Reference
Output Buffer
♦ 1.1V to 3.6V Power Input
♦ ±15mV (max) Load-Regulation Error
♦ Thermal Fault Protection
♦ Shutdown Input
♦ Power-Good Window Comparator with 2ms
(typ) Delay
♦ Small, Low-Profile 10-Pin 3mm x 3mm TDFN
Package
♦ Ceramic or Polymer Output Capacitors
MAX1510
Low-Voltage DDR Linear Regulator
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
OUT IN
OUTS
AGND
PGND
V OUT = V TT
V IN
(1.1V TO 3.6V)
V BIAS
(2.7V TO 3.6V)
V DDQ
(2.5V OR 1.8V) V
REFOUT
= V
TTR
REFOUT
MAX1510
V CC
PGOOD
SHDN
REFIN
Typical Operating Circuit
19-3279; Rev 0; 5/04
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.
EVALUATION KIT
AVAILABLE
PART TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX1510ETB -40 °C to +85°C
10 TDFN
(3mm x 3mm)
ABD
SHDN
OUTS PGOOD
2
3
9
8
OUT
PGND AGND
REFIN
V CC
TDFN
3mm x 3mm
TOP VIEW
4
5
7
6
1 IN REFOUT
MAX1510
10
Pin Configuration