MIC5162 Datasheet, PDF (1/11 Pages) Micrel Semiconductor – Dual Regulator Controller For High-Speed Bus Termination

MIC5162
MIC5162
Micrel, Inc.
Dual Regulator Controller For High-Speed Bus Termination
General Description
Features
The MIC5162 is a dual regulator controller designed for high- • JEDEC Compliant Bus Termination for SCSI, GTL,
speed bus termination. It offers a simple, low-cost JEDEC
SSTL, HSTL, LV-TTL, Rambus, LV-PECL, LV-ECL, etc.
compliant solution for terminating high-speed, low-voltage • DDR memory termination
digital buses (i.e. DDR, SCSI, GTL, SSTL, HSTL, LV-TTL, • Tracking programmable output
Rambus, LV-PECL, LV-ECL, etc).
• Requires minimal external components
The MIC5162 controls two external N-Channel MOSFETs to
form two separate regulators. It operates by switching be-
tween either the high-side MOSFET or the low-side MOSFET
depending on whether the current is being sourced to the load
or sinked by the regulator.
• Wide bandwidth
• Input voltage range: 1.35V to 6V
• Logic controlled enable input
• Tiny MSOP-10 package
• Available –40°C < T_J < +125°C
Designed to provide a universal solution for bus termination Applications
regardless of input voltage, output voltage, or load current,
the desired MIC5162 output voltage can be programmed by
externally forcing the reference voltage.
• Desktop computers
• Notebook computers
• Communication systems
The MIC5162 operates from an input of 1.35V to 6V, with a • Video cards
second bias supply input required for operation. It is available
in the tiny MSOP-10 package with operating junction tem-
perature range of –40°C to +125°C.
Ordering Information
Part Number
Standard
Pb-Free
MIC5162BMM MIC5162YMM
Junction
Temp Range
–40°C to +125°C
Package
10-Pin MSOP
Typical Application
V_IN=2.5V to 1.5V
V_DDQ = 1.35V
to 6.0V
MIC5162BMM
VDDQ VREF
V_CC = 5.0V
VCC
HD
EN
EN
COMP LD
220pF
FB
GND
120pF
3k
SUD50N02-06
V_TT = ¹/₂ V_DDQ
C_OUT = 330µF
Load Transient
Sink 3A
0A
Source 3A
Typical SSTL-2 Application
TIME (200µs/div)
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 [phone] • fax + 1 [phone] • http://www.micrel.com
February 2005
1
M9999-092004