PI1004-1 Datasheet, PDF (15/16 Pages) Vicor Corporation – Programmable Point-of-Load Controller with 6-bit VID

Package Description
E
D
0.10mm(.004")
A
0.08mm(.003")
1
PICOR
2
1004-X
(LOT#)
DATE CODE
Top View
Side View
A3
A1
D2
D2/2
E2
2
E2/2
1
e
Bottom View
NXL
NXb
Layout Guidelines
Good layout technique is required for systems that
combine sensitive amplifiers and switching
converters. Extra care must be taken to provide high
frequency decoupling and to avoid introducing noise
at sensitive nodes.
• The capacitors for VCC decoupling and Soft Start
should provide low impedance paths to each pin
and be referenced to SGND close to the PI1004.
• The connections from load VSS to SGND and the
load VCC to EAIP form an output voltage sense
pair and should be routed in parallel to avoid
noise pick-up. If the layout allows PI1004 return
current to flow through the load VSS to SGND
connection, trace resistance must be considered
to avoid an excessive offset voltage within the trace.
• The PI1004 EA integrator capacitor should be
routed in a short loop to minimize noise pick-up.
• RG and ROFFSET should be tied to SGND near the
PI1004 to avoid noise pickup.
MILLIMETERS
INCHES
DIM MIN NOM MAX MIN NOM MAX
A 0.80 0.85 .90 .031 .033 .035
A1 0.00 0.02 0.05 .000 .001 .002
A3 -- 0.20ref --
-- .008 ref --
NXb 0.20 0.25 0.30 .008 .010 .012
D
4.00
.157
D2 2.70 2.80 2.90 .106 .110 .114
E
4.00
.157
E2 2.70 2.80 2.90 .106 .110 .114
e
0.50
.020
NXL 0.30 0.40 0.50 .012 .016 .020
Controlling Dimensions: Millimeters
Thermal Resistance Ratings
PARAMETER
Maximum Junction-to-Ambient ²
Maximum Junction-to-Case
SYMBOL
θJA
θJC
TYPICAL
46
2
UNIT
°C/W
°C/W
Ordering Information
PART NUMBER
PI1004-1-QAHG
PI1004-2-QAHG
PACKAGE
24 lead (4mm x 4mm) QFN
24 lead (4mm x 4mm) QFN
BRANDING
1004-1
1004-2
TEMP. RANGE
-40°C to 125°C
-40°C to 125°C
TRANSPORT MEDIA
T&R
T&R
Note 2: In accordance with JEDEC JESD 51-5
Note 3: This product is MSL classified at the peak soldering reflow temperature listed in the Absolute Maximum Rating
section to meet the lead free requirements of the joint IPC^® and JEDEC^® standard J-STD-020C.
Picor Corporation • picorpower.com
PI1004 Data Sheet Rev. 2.5 Page 15 of 16