AP1280AMP Advanced Power Electronics Corp., AP1280AMP Datasheet

AP1280AMP

Manufacturer Part Number
AP1280AMP
Description
Manufacturer
Advanced Power Electronics Corp.
Datasheet

Specifications of AP1280AMP

Vin(max)
2.2A
Current Limit
2A
Quiescent Current Typ.
2uA
Package
ESOP-8,SO-8

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AP1280AMP
Manufacturer:
APEC/富鼎
Quantity:
20 000
Part Number:
AP1280AMP-HF
Manufacturer:
APEC/富鼎
Quantity:
20 000
Company:
Part Number:
AP1280AMP-HF
Quantity:
21 000
Data and specifications subject to change without notice
FEATURES
APPLICATION
TYPICAL APPLICATION
Ideal for DDR-I, DDR-II and DDR-III V
Sink and Source up to 2Amp
Integrated Power MOSFETs
Generates Termination Voltage for SSTL_2, SSTL_18,
HSTL, SCSI-2 and SCSI-3 Interfaces.
High Accuracy Output Voltage at Full-Load
Output Adjustment by Two External Resistors
Built-in Soft-start Function
Shutdown for Suspend to RAM (STR) Functionality
with High-Impedance Output
Current Limiting Protection
On-Chip Thermal Protection
Available in ESOP-8 (Exposed Pad) Packages
V
RoHS Compliant and 100% Lead (Pb)-Free
Desktop PCs, Notebooks, and Workstations
Graphics Card Memory Termination
Set Top Boxes, Digital TVs, Printers
Embedded Systems
Active Termination Buses
DDR-I, DDR-II and DDR-III Memory Systems
IN
and V
Advanced Power
Electronics Corp.
CNTL
Enable
Shutdown
Under Voltage Protection
VIN
CIN
2A SINK/SOURCE BUS TERMINATION REGULATOR
R1
R2
TT
Applications
CSS
R1 = R2 = 100KΩ , RTT = 50Ω / 33Ω / 25Ω
COUT = 10uF ( + 100uF under the worst case testing condition )
CSS = 1uF , CIN = 470 uF (Low ESR) , CCNTL = 47uF
VIN
REFEN
AP1280AMP
GND
high-speed linear regulator designed to generate
termination voltage in double data rate (DDR) memory
system to comply with the JEDEC SSTL_2 and
SSTL_18 or other specific interfaces such as HSTL,
SCSI-2 and SCSI-3 etc. devices requirements. The
regulator is capable of actively sinking or sourcing up to
2A while regulating an output voltage to within 40mV.
The output termination voltage cab be tightly regulated
to track 1/2V
or the desired output voltage can be pro-grammed by
externally forcing the REFEN pin voltage.
differential amplifier to provide ultra-fast response in
line/load transient. Other features include extremely low
initial offset voltage, excellent load regulation, current
limiting in bi-directions and on-chip thermal shut-down
protection.Built-in
misoperation by inrush current.
(Exposed Pad) surface mount packages.
VCNTL
VOUT
DESCRIPTIOON
The AP1280AMP also incorporates a high-speed
The AP1280AMP are available in the ESOP-8
The AP1280AMP is a simple, cost-effective and
DDQ
COUT
by two external voltage divider resistors
softstart
CCNTL
RDUMMY
VCNTL
VOUT
RTT
function
AP1280AMP
avoids
201111083
a
1

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AP1280AMP Summary of contents

Page 1

... CSS = 1uF , CIN = 470 uF (Low ESR) , CCNTL = 47uF AP1280AMP DESCRIPTIOON The AP1280AMP is a simple, cost-effective and by two external voltage divider resistors DDQ The AP1280AMP also incorporates a high-speed softstart function The AP1280AMP are available in the ESOP-8 VCNTL CCNTL RTT VOUT VOUT COUT RDUMMY avoids ...

Page 2

... VIN REFEN Rising COP CNTL V CHYS V V Rising IOP IOP V IHYS I = 10mA OUT Δ -10mA OUT I = 10mA ~ 2A OUT ΔV Load I = -10mA ~ -2A OUT AP1280AMP VCNTL C unless otherwise specified) MIN TYP - 2.4 2.55 - 0.35 0.8 0.95 - 0.15 -20 -20 -20 -20 MAX UNITS 2 ...

Page 3

... V OUT REFEN PIN DESCRIPTION Power Input Voltage. Ground Pin Output Voltage Gate Drive Voltage Reference Voltage Input and Chip Enable UVP ENABLE FUNCTION Soft-Start Function GATE CONTROL LOGIC ERROR AMPLIFIER AP1280AMP MIN TYP 2 150 - 20 0. 0.8 . VIN OTP Function OCP Function ...

Page 4

... Electronics Corp. APPLICATION INFORMATION Input Capacitor and Layout Consideration Place the input bypass capacitor as close as possible to the AP1280AMP. A low ESR capacitor larger than 470uF is recommended for the input capacitor. Use short and wide traces to minimize parasitic resistance and inductance. Inappropriate layout may result in large parasitic inductance and cause undesired oscillation between AP1280AMP and the preceding powe converter ...

Page 5

... Advanced Power Electronics Corp. MARKING INFORMATION ESOP-8 1280AMP YWWSSS Part Number Package Code Date Code (YWWSSS) Y:Last Digit Of The Year WW:Week SSS:Sequence AP1280AMP 5 ...

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