MAX1510 Datasheet, PDF (1/13 Pages) Maxim Integrated Products – Low-Voltage DDR Linear Regulator

19-3279; Rev 0; 5/04
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Low-Voltage DDR Linear Regulator
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
Pin Configuration
TOP VIEW
REFOUT 1
V_CC 2
AGND 3
REFIN 4
PGOOD 5
MAX1510
10 IN
9 OUT
8 PGND
7 SHDN
6 OUTS
TDFN
3mm x 3mm
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
PART
MAX1510ETB
Ordering Information
TEMP RANGE
-40°C to +85°C
PIN-
PACKAGE
10 TDFN
(3mm x 3mm)
TOP
MARK
ABD
Typical Operating Circuit
V_IN
(1.1V TO 3.6V)
IN
OUT
OUTS
V_OUT = V_TT
V_BIAS
(2.7V TO 3.6V)
V_DDQ
(2.5V OR 1.8V)
MAX1510
V_CC
PGND
SHDN
AGND
PGOOD
REFIN
REFOUT
V_REFOUT = V_TTR
________________________________________________________________ Maxim Integrated Products 1
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1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.