19-3279; Rev 0; 5/04
KIT
ATION
EVALU
E
BL
AVAILA
Low-Voltage DDR Linear Regulator
General Description
Features
o
Internal Power MOSFETs with Current Limit (3A typ)
o
Fast Load-Transient Response
o
External Reference Input with Reference
Output Buffer
o
1.1V to 3.6V Power Input
o
±15mV
(max) Load-Regulation Error
o
Thermal Fault Protection
o
Shutdown Input
o
Power-Good Window Comparator with 2ms
(typ) Delay
o
Small, Low-Profile 10-Pin 3mm x 3mm TDFN
Package
o
Ceramic or Polymer Output Capacitors
MAX1510
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
MAX1510ETB
PART
Ordering Information
TEMP RANGE
-40°C to +85°C
PIN-
PACKAGE
10 TDFN
(3mm x 3mm)
TOP
MARK
ABD
Pin Configuration
TOP VIEW
Typical Operating Circuit
V
IN
(1.1V TO 3.6V)
IN
OUT
OUTS
V
OUT
= V
TT
REFOUT
1
V
CC
2
AGND
3
REFIN
4
10
IN
9
OUT
V
BIAS
(2.7V TO 3.6V)
V
CC
SHDN
PGOOD
V
DDQ
(2.5V OR 1.8V)
REFIN
REFOUT
V
REFOUT
= V
TTR
MAX1510
PGND
AGND
MAX1510
8
PGND
7
SHDN
6
OUTS
PGOOD
5
TDFN
3mm x 3mm
________________________________________________________________
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.
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
