SEMTECH SC2647EVB

SC2647
Multi-Platform
Multi-Phase PWM Controller
POWER MANAGEMENT
Description
The VID structure of the SC2647 supports VID-on-Fly applications for any platform. The cycle-by-cycle current
limit plus the intelligent over current shut down provide
the maximum versatility of the system without false
tripping under all possible changes of VID and load
conditions. The differential voltage feedback sense
eliminates the error caused by high load current on the
ground plane. External offset is easy to achieve for any
platforms and the VID settings. The enable function is
also provided to interface with the corresponding system signal for correct start up timing and shut down
timing.
(Multiple Patents Pending)
The SC2647 provides microprocessor core voltage
regulation solution up to 4 paralleled PWM channels. The
solution can also be configured as 2, 3, or 4-phase form.
Multi-phase buck regulator utilizes the phase-shift timing control to allow interleaved switching of the power
switches. This architecture minimizes the core voltage
ripple and the input current ripple, which leads to optimized voltage regulator design for power density, transient responses, and the thermal performances.
To satisfy the highly dynamic nature of the modern
microprocessors, the SC2647 adopts peak current mode
control topology which ensures wide control loop
bandwidth and fast transient responses. The current
mode control provides intrinsic phase current matching.
The maximum ripple frequency is greater than 1MHz.
Features
‹
‹
‹
‹
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‹
One of the outstanding features of the SC2647 is its
voltage regulation accuracy. Not only it provides better
than 0.5% set point accuracy, but also the accuracy to
fully complaint with the stringent load line slope
specifications mandated by the modern microprocessors.
Lossless output current sensing ensures the regulator
output voltage is accurately positioned according to the
load current condition, and an internal temperature
compensation technology further enhances the performance of voltage accuracy.
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‹
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The patented Combi-Sense TM topology is employed by
SC2647. The MOSFET Rds(on) and the output inductor
winding resistance is used to generate the phase current information. The SC1211VX Combi-SenseTM MOSFET
driver plus the SC2647 enables the complete solution.
‹
‹
‹
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‹
The SC2647 is a multi-platform controller. It conforms
to Intel VRM/VRD10.0, VRM9.X, and AMD K-8 (OpteronTM)
VID specifications. With very minor changes of the schematic and the layout, the SC2647 based solution can be
ported form one platform to another. This greatly benefits the system manufactures for reductions of design
cycle and minimize the inventory management.
July, 12, 2006
VRD/VRM10.0, VRM9.X, and K-8 compliant
Core Voltage Set Point Accuracy 0.5%
Combi-SenseTM Current Mode Control
Intrinsic Phase Current Matching
Fast Transient Responses
Active Droop with Temperature Compensation to
Meet Load Line Slope
Support VID-on-Fly with 5 or 6 bit VID
Enable Function for Power Sequencing
Cycle-by-Cycle Peak Current Limit
Intelligent Over Current Shut Down
Over Voltage Protection When Using Semtech
Combi-SenseTM Driver/1211VX
Under Voltage Protection Built in
External programmable Soft-Start
Externally programmable switching frequency.
2, 3, or 4-Phase Configurations
24-Pin SOIC or TSSOP Packages
This device is fully WEEE and RoHS Compliant
Applications
‹
‹
‹
‹
1
Voltage Regulator VRD/VRM10.0
Voltage Regulator VRM9.X
Voltage Regulator K-8
High Current, Low Voltage Step Down DC/DC
Converters
www.semtech.com
© 2006 Semtech Corp.
2
VID4
VID3
VID2
PGND
BG
BST
VIN
CO
VPN
7
4.7uF
C30
8
Notes:
(1) Output filter design: Please follow guidelines issued by Intel and AMD .
(2) Please follow the guidelines issued by Intel and AMD .
(3) See application notes for VID table selection.
VIN
4
VCC
Ry
5
TG
AUX1
3
DRN
R23
100
6
1nF
9
1
R21
M6
VIN
VIN
PN1
PN2
1
Note (2)
U4
2
SC1211VX
M5
M4
M3
M2
L4
L3
L2
0R0
R24
2
PWRGOOD (Open Collector Output)
VID5
Note (3)
C27
PN1
1uF
1
R17
1
PN3
2
Rx
Vcc
DIFFERENTIAL PAIR
FOR REMOTE SENSE
9
9
C24
4.7uF
1
V_CORE+
V_CORE-
D1N4148
D3
VIN
C23
7
VID1
SC2647
8
VID0
1uF
VPN
13
14
CO
VID1
VID0
PGND
BG
VID2
VID3
AUX2
SC1211VX
VCC
12
11
R19
100
1nF
VIN
Note (2)
C21
Rosc
BST
10
VID5
15
16
TG
VID4
PGOOD
DRN
10
OSCREF
2
VCC
1uF
C13
4.7uF
C12
1
DACSTEP
U3
PGND
R6
M1
1
9
C19
PN2
4
17
18
19
D1N4148
D2
5
8
AGND
OUT1
20
21
22
VIN
3
R20
C18 0.1uF
FB
GNDSEN
OUT2
OUT3
OUT4
VCC
6
C17
7
6
ERROUT
BGOUT
OS1
23
24
AUX3
1uF
VIN
2
5V
C2
2
VCC
5
4
3
OS4
OUTSEN
R12
100
1nF
VPN
OS2
R10
SC1211VX
CO
OS3
U2
C9
C5
U1
VIN
7
2
1
R9
PN3
BST
8
1uF
C16
C8
R5
D1N4148
C3
BG
R16
OFFSET-
R14
R8
C4
2R2
VCC
VCC OFFSET+
C7
R4
VOUT
TG
1.5K
R7
R3
AUX3
D1
4
DRN
R15
R13
1
R2
AUX2
R1
3
C6
AUX1
640nH
2
(Open Collector Input, No Pull-up)
5V
L1
1
VRM_EN
5V
Adaptor_In
PGND
Cout
Note (1)
+
VOUT
SC2647
POWER MANAGEMENT
Typical Application Circuit
1
6
5
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SC2647
POWER MANAGEMENT
Absolute Maximum Ratings
Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified
in the Electrical Characteristics section is not implied.
Parameter
Symbol
Maximum
Units
VCC
20
V
OS1, OS2, OS3, OS4, OUTSEN
5
V
Ambient Temperature Range
TA
0 to 105
o
Junction Temperature Range
TJ
0 to 125
o
Storage Temperature Range
TSTG
-65 to +150
o
Lead Temperature (Soldering) 10 Sec.
TLEAD
300
o
ESD Rating (Human Body Model)
ESD
2
Supply Voltage
Combi-Sense/Direct Output Voltage
C
C
C
C
kV
Electrical Characteristics
o
Unless specified: VCC = 5V, VID=1.30V (110110,VRD10) or 1.50V (101110,VRD10), FOSC = 600kHz, TA = 27 C. See Typical Application Circuit.
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
4.7
5
7
V
Chip_Supply
IC Supply Voltage
VCC
IC Supply Current
ICC
9.5
mA
UVLO Ramp Up
4.3
V
UVLO Hysterisis
300
mV
CBGOUT = 4.7nF
3
V
Source Current
BG=0V
270
μA
Sink Current
BG=4V
-500
μA
Supply Rejection
VCC = 4.7V ~ 7V
0.5
mV/V
Temperature Stability
0oC < TA < 85oC
0.5
%
VID Step
VRM9.X, K-8, LSB
25
mV
VID Step
VRD/VRM10, LSB
12.5
mV
Reference Section
Bandgap Output
Voltage Accuracy
VBGOUT
VOUT
VRD10 ; Internal offset=-20mV
-0.5
+0.5
%
VRM9.x ; Internal offset=-20mV
-1
+1
%
K-8 ; Internal offset=+25mV
-1
+1
%
660
kHz
Oscillator Section
Oscillator Frequency
ROSC = 309Kohm
Temperature Stability
0oC < TA < 85oC
© 2006 Semtech Corp.
3
540
600
+/-5
%
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SC2647
POWER MANAGEMENT
Electrical Characteristics (Cont.)
o
Unless specified: VCC = 5V, VID=1.30V (110110,VRD10) or 1.50V (101110,VRD10), FOSC = 600kHz, TA = 27 C. See Typical Application Circuit.
Parameter
Test C onditions
Min
Typ
Max
U nits
Voltage Error Amplifier
Input Offset Voltage
+/-3
mV
Input Bi as C urrent
25
nA
1V < VERROUT < 3.6V
80
dB
C ERROUT = 10pF
10
MHz
2
V/μS
0.5
mA/V
Input Offset Voltage
+/-3
mV
Input Bi as C urrent
50
nA
Gai n
9.5
V/V
80
dB
Open Loop Gai n
Uni ty Gai n Bandwi dth
Slew Rate
Transconductance Gai n
C urrent Sense Amplifiers
C MRR
0 to 3V
Input C ommon Mode Range
-0.3
3
V
Gai n Match
2
%
Bandwi dth
6
MHz
5.2
V/V
D roop Amplifier
Gai n
VID s
Logi c Threshold
[VID 0:4]
Pull-up Impedance
[VID 0:4]
VID 5 Logi c Threshold for VRD /VRM10
VID 5
1.2
1.8
10
1.2
VID 5 C lampi ng voltage
V
Kohm
1.8
V
2.7
V
VID 5 Selecti on Threshold for VRM9.X
VID 5/Si nk
49
uA
VID 5 Selecti on Threshold for K-8
VID 5/Si nk
205
uA
4.1
V
3-Phase Operation
Output 4 pull up Threshold
3.7
Pow er Good
Threshold Ri si ng
VID - Power Good Threshold
330
mV
Threshold Falli ng
VID - Power Good Threshold
560
mV
Output Hi gh Leakage
Pwrgood = VCC
100
nA
Output Low Si nk
Pwrgood = 0.8V
2
mA
C urrent Limit Section
Max. Error Amp Voltage for C urrent Li mi t
Shutdown Voltage
© 2006 Semtech Corp.
VID - Shut D own Threshold
4
3.6
V
600
mV
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SC2647
POWER MANAGEMENT
Pin Configurations
Ordering Information
Top View
Part N umber
SC 2647SWTR
OS3
OS2
OS1
BGOUT
ERROUT
GSENSE
FB
DACSTEP
VCC
VID4
VID3
VID2
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
OS4
OUTSEN
OUT4
OUT3
OUT2
OUT1
AGND
OSCREF
PGOOD
VID5
VID0
VID1
SC 2647TSTR
(1)
(1)
SC 2647TSTRT (1,3)
S C 2647E V B
(2)
P ackag e
Temp. R ange (TJ)
SOIC -24
0 to 125 OC
TSSOP-24
0 to 125 OC
TSSOP-24
0 to 125 OC
Evaluati on Board
Note:
(1) Only available in tape and reel packaging. A reel contains 1000 devices
for the SOIC-24 and 2500 devices for the TSSOP-24 package.
(2) Specify SOIC-24 or TSSOP-24 package.
(3) Lead free product. This product is fully WEEE and RoHS compliant.
(24-Pin SOIC/TSSOP)
Pin Descriptions
P in #
P in N a m e
1
OS 3
C urre nt se nse i np ut.
2
OS 2
C urre nt se nse i np ut.C o nne ct to O UTS E N fo r 2 p ha se o p e ra tio n.
3
OS 1
C urre nt se nse i np ut.
4
B GO UT
B G re fe re nce p in.C o nne ct so ft s ta rt c a p fro m this p i n to A GND .
5
E RROUT
E rro r-a m p lifi e r o utp ut.C o nne c t co m p e nsa ti o n ne two rk to A GND .
6
G S E NS E
Re m o te s e ns e fo r G ND .
7
FB
8
D A C S TE P
9
VCC
P o we r sup p ly fo r chip .
1 0 ~1 4
V ID 4 : 0
V ID M S B to V ID L S B .
15
V ID 5
16
P G OOD
17
O S C RE F
18
A GND
C le a n g ro und fo r a na lo g s ig na ls .
19
OUT1
P W M o utp ut1 .
20
OUT2
P W M o utp ut2 .
21
OUT3
P W M o utp ut3 .
22
OUT4
P W M o utp ut4 . C o nne c t to V C C fo r 3 p ha s e o p e ra ti o n.
23
OUTS E N
24
OS 4
© 2006 Semtech Corp.
P in F u n c tio n
F e e d b a c k p i n.Ro ute F B a nd GE NS E a s d i ffe re ntia l p a i r to C P U.
V ID ste p s p e e d .C o nne c t a ca p fro m this p i n to A GND to fi lte r D A C o utp ut.
1 2 .5 m V b it fo r V RD 1 0 .x. P ull i t up to >2 V a nd p ro g ra m the s ink curre nt to
se le ctV RM 9 o r K 8 V ID ta b le .
P o we r g o o d , O p e n co lle cto r o utp ut.
Osc illa to r fre q ue ncy se tti ng .C o nne ct a re si sto r to A GND .
D i re c t o utp ut se nse .
C urre nt se nse i np ut. C o nne ct to O UTS E N fo r 2 o r 3 p ha se o p e ra tio n.
5
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SC2647
POWER MANAGEMENT
Block Diagram
C/A1
+
3
OS1
+
OUT
OUT
-
C/A2
+
OUT
Q
19
OUT1
20
OUT2
21
OUT3
22
OUT4
S
DRV2
PWM2
OUT
-
C/A3
R
-
Q
S
+
1
OS3
R
-
+
2
OS2
DRV1
PWM1
+
OUT
DRV3
PWM3
OUT
-
C/A4
R
-
Q
S
+
OS4 24
OUT
+
-
OUTSEN
DRV4
PWM4
OUT
R
-
Q
S
OUTSEN 23
Errout
OSCILLATOR
Ramp
CLOCK DIVIDER
ROSC
OSCREF 17
OSC
CLK
SEL3
VID0
11111
INHIBIT
14
VID1
13
VID2
12
VID3
11
VID0
VID1
VID2
VID3
VID4
VID5
Shut Down
DAC
P1
P2
P3
P4
+
OUT
3 PHASE
SELECT
2R
-
3/4 Phase selection
Threshold
-
VDAC
2R
OUT
0
+
VID4
10
VID5
15
DACSTEP
8
R
VBG
PWR_GOOD
+
16
PWRGD
5
ERROUT
9
VCC
18
AGND
OUT
OUTSEN
DROOP
Power Good Threshold
R
+
-
0
OUT
-
7
FB
R
R
E/A
ERROUT
OUT
+
OCP &
SHUTDOWM
R
BGOUT
BGOUT
4
-
0
OUT
BUFFER
+
VCC
BANDGAP
VCC
GNDSEN
6
© 2006 Semtech Corp.
GSEN
UVLO &
LATCH
VREF
VBG
6
BGOUT
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SC2647
POWER MANAGEMENT
Applications Information- Output Voltage
VRM9.X Output Voltage
Unless specified: 0 = GND; 1 = High (or Floating). TA = 25oC, VCC = 5V
VID4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
© 2006 Semtech Corp.
VID3
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
VID2
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
VID1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
7
VID0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
Vout
(V)
OFF
1.1
1.125
1.15
1.175
1.2
1.225
1.25
1.275
1.3
1.325
1.35
1.375
1.4
1.425
1.45
1.475
1.5
1.525
1.55
1.575
1.6
1.625
1.65
1.675
1.7
1.725
1.75
1.775
1.8
1.825
1.85
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SC2647
POWER MANAGEMENT
Applications Information- Output Voltag
V R D 10 Ou tp u t Vo ltage
Unless specified: 0 = GND ; 1 = High. TA = 25 o C , V C C = 5V
V ID 5
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
© 2006 Semtech Corp.
V ID 4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
V ID 3
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
V ID 2
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
8
V ID 1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
V ID 0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
Vou t
(V )
0.8375
0.8500
0.8625
0.8750
0.8875
0.9000
0.9125
0.9250
0.9375
0.9500
0.9625
0.9750
0.9875
1.0000
1.0125
1.0250
1.0375
1.0500
1.0625
1.0750
1.0875
OF F
OF F
1.1000
1.1125
1.1250
1.1375
1.1500
1.1625
1.1750
1.1875
1.2000
1.2125
1.2250
1.2375
1.2500
1.2625
1.2750
1.2875
1.3000
1.3125
1.3250
1.3375
1.3500
1.3625
1.3750
1.3875
1.4000
1.4125
1.4250
1.4375
1.4500
1.4625
1.4750
1.4875
1.5000
1.5125
1.5250
1.5375
1.5500
1.5625
1.5750
1.5875
1.6000
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SC2647
POWER MANAGEMENT
Applications Information- Output Voltag
K -8 Output Voltage
Unless speci fi ed: 0 = GND ; 1 = Hi gh (or Floati ng). TA = 25oC , VCC = 5V
VID 4
VID 3
VID 2
VID 1
VID 0
VOUT (V)
0
0
0
0
0
1.550
0
0
0
0
1
1.525
0
0
0
1
0
1.500
0
0
0
1
1
1.475
0
0
1
0
0
1.450
0
0
1
0
1
1.425
0
0
1
1
0
1.400
0
0
1
1
1
1.375
0
1
0
0
0
1.350
0
1
0
0
1
1.325
0
1
0
1
0
1.300
0
1
0
1
1
1.275
0
1
1
0
0
1.250
0
1
1
0
1
1.225
0
1
1
1
0
1.200
0
1
1
1
1
1.175
1
0
0
0
0
1.150
1
0
0
0
1
1.125
1
0
0
1
0
1.100
1
0
0
1
1
1.075
1
0
1
0
0
1.050
1
0
1
0
1
1.025
1
0
1
1
0
1.000
1
0
1
1
1
0.975
1
1
0
0
0
0.950
1
1
0
0
1
0.925
1
1
0
1
0
0.900
1
1
0
1
1
0.875
1
1
1
0
0
0.850
1
1
1
0
1
0.825
1
1
1
1
0
0.800
1
1
1
1
1
OFF
© 2006 Semtech Corp.
9
www.semtech.com
SC2647
POWER MANAGEMENT
Outline Drawing - SOIC-24
A
D
e
N
DIM
A
A1
A2
b
c
D
E1
E
e
h
J
L
L1
N
R
01
aaa
bbb
ccc
2X E/2
E1
E
R
1
ccc C
2
2X N/2 TIPS
3
e/2
B
D
DIMENSIONS
INCHES
MILLIMETERS
MIN NOM MAX MIN NOM MAX
.093
.104 2.35
2.65
.004
.012 0.10
0.30
.081
.100 2.05
2.55
.020 0.31
0.51
.012
.008
.013 0.20
0.33
.602 .606 .610 15.30 15.40 15.50
.291 .295 .299 7.40 7.50 7.60
10.30 BSC
.406 BSC
1.27 BSC
.050 BSC
.010
.030 0.25
0.75
.020
.030 0.50
0.75
.016
.041 0.40
1.04
(.041)
(1.04)
24
24
.024
.035 0.60
0.90
0
8
0
8
0.10
.004
0.25
.010
0.33
.013
h
aaa C
A2 A
SEATING
PLANE
h
H
bxN
bbb
C
A1
C A-B D
c
GAGE
PLANE
J
0.25
SEE DETAIL
SIDE VIEW
A
L
(L1)
DETAIL
01
A
NOTES:
1.
CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).
2.
DATUMS -A- AND -B- TO BE DETERMINED AT DATUM PLANE -H-
3.
DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS
OR GATE BURRS.
4.
REFERENCE JEDEC STD MS-013, VARIATION AD.
Land Pattern - SOIC-24
X
D IM
(C )
G
Z
C
G
P
X
Y
Z
D IM E N S IO N S
IN C H E S
M IL L IM E T E R S
(.3 6 2 )
.2 7 6
.0 5 0
.0 2 4
.0 8 7
.4 4 9
(9 .2 0 )
7 .0 0
1 .2 7
0 .6 0
2 .2 0
1 1 .4 0
Y
P
N O TES :
1.
T H IS L A N D P A T T E R N IS F O R R E F E R E N C E P U R P O S E S O N L Y .
C O N S U L T Y O U R M A N U F A C T U R IN G G R O U P T O E N S U R E Y O U R
C O M P A N Y 'S M A N U F A C T U R IN G G U ID E L IN E S A R E M E T .
2.
R E F E R E N C E IP C -S M -7 8 2 A , R L P N O . 3 0 7 A .
Contact Information
Semtech Corporation
Power Management Products Division
200 Flynn Rd., Camarillo, CA 93012
Phone: (805)498-2111 FAX (805)498-3804
© 2006 Semtech Corp.
10
www.semtech.com
SC2647
POWER MANAGEMENT
Outline Drawing - TSSOP-24
A
D IM
D
e
A
A1
A2
b
c
D
E1
E
e
L
L1
N
01
a aa
b bb
ccc
N
2 X E /2
E1
E
P IN 1
IN D IC A T O R
1 2 3
c cc C
2 X N /2 T IP S
e/2
B
.002
.031
.007
.003
.303
.169
.0 47
.0 06
.0 42
.0 12
.0 07
.3 07 .3 11
.1 73 .1 77
.2 52 B S C
.0 26 B S C
.018 .0 24 .0 30
(.03 9)
24
8
0
.0 04
.0 04
.0 08
1 .2 0
0 .1 5
1 .0 5
0 .3 0
0 .2 0
7 .80 7 .9 0
4 .40 4 .5 0
6.40 B S C
0.65 B S C
0 .45 0 .60 0 .7 5
(1 .0 )
24
0
8
0 .10
0 .10
0 .20
0 .05
0 .80
0 .19
0 .09
7 .70
4 .30
D
aa a C
S E A T IN G
P LA N E
D IM E N S IO N S
IN C H E S
M IL L IM E T E R S
M IN N O M M A X M IN N O M M A X
A2
C
A
H
A1
b xN
b bb
C A -B D
c
GAGE
PLANE
0 .25
L
(L 1)
S E E D E T A IL
S ID E V IE W
D E T A IL
A
01
A
NOTES:
1.
C O N T R O L L IN G D IM E N S IO N S A R E IN M IL L IM E T E R S (A N G LE S IN D E G R E E S ).
2.
DATUM S
3.
D IM E N S IO N S "E 1 " A N D "D " D O N O T IN C L U D E M O L D F L A S H , P R O T R U S IO N S
OR G ATE BURRS.
4.
R E F E R E N C E J E D E C S T D M O -1 5 3 , V A R IA T IO N A D .
-A -
AND
-B -
T O B E D E T E R M IN E D A T D A T U M P L A N E -H -
Land Pattern - TSSOP-24
X
D IM
(C )
G
C
G
P
X
Y
Z
Z
Y
D IM E N S IO N S
IN C H E S
M IL L IM E T E R S
(.2 2 2 )
.1 6 1
.0 2 6
.0 1 6
.0 6 1
.2 8 3
(5 .6 5 )
4 .1 0
0 .6 5
0 .4 0
1 .5 5
7 .2 0
P
NOTES:
1.
T H IS L A N D P A T T E R N IS F O R R E F E R E N C E P U R P O S E S O N L Y .
C O N S U L T Y O U R M A N U F A C T U R IN G G R O U P T O E N S U R E Y O U R
C O M P A N Y 'S M A N U F A C T U R IN G G U ID E L IN E S A R E M E T .
Contact Information
Semtech Corporation
Power Management Products Division
200 Flynn Rd., Camarillo, CA 93012
Phone: (805)498-2111 FAX (805)498-3804
© 2006 Semtech Corp.
11
www.semtech.com