SC198AEVB [SEMTECH]
Dual DC-DC Buck Converter with High Current Capability; 双路DC-DC降压转换器，高电流能力
| 型号： | SC198AEVB |
| 厂家： | 
SEMTECH CORPORATION |
| 描述： | Dual DC-DC Buck Converter with High Current Capability |
| 文件： | 总15页 (文件大小：353K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SC198A
Dual DC-DC Buck Converter
with High Current Capability
POWER MANAGEMENT
Features
Description
Input voltage range — 2.7V to 5.5V
Dual buck converters with independent control
High efficiency — over 90% peak
Up to 800mA Load
Programmable output voltages per channel — 8
Fixed-frequency operation — 1MHz
Optional SYNC clock input
Optional power-save under light-load conditions
Shutdown current <1μA
Soft-start to limit in-rush current
4mm x 4mm MLPQ package
The SC198A is a dual high-efficiency synchronous buck
converter designed for use in low power applications.
Each converter is capable of supplying up to 800mA of
average current at one of eight programmable output
voltages used as microprocessor supply voltages.
The SC198A uses a single control logic block for the two
converters, but their controls can be set independently.
The device uses a flexible clocking method allowing the
user to set the fixed internal 1MHz oscillator or synchro-
nize the clock to an external source. The device also has an
optional power-save mode that optimizes efficiency for
light loads.
Applications
Mobile phones
Cordless phones
MP3 players
Digital cameras
The SC198A provides output voltage flexibility while con-
serving board space by using control pins to select the
output voltage. This eliminates at least four parts from the
traditional dual buck converter bill of materials.
PDAs
Single Li-Ion cell or (3) NiMH/NiCd cell devices
Digital multimedia broadcast (DMB) devices
Portable gaming systems
Typical Application Circuit
SC198A
4.7μH
VOUTA
VOUTB
VINA
LXA
VOUTA
GNDA
VBATT
VINR
VINB
COUTA
ENA
CIN
CTLA0
CTLA1
CTLA2
ENB
4.7μH
LXB
VOUTB
GNDB
COUTB
CTLB0
CTLB1
CTLB2
GNDR
MODE/SYNC
September 26, 2007
1
SC198A
Pin Configuration
Ordering Information
Device
Package
SC198AMLTRT(1) (2)
SC198AEVB
MLPQ-20
Evaluation Board
20
19
18
17
16
Notes:
(1) Available in tape and reel only. A reel contains 3,000 devices.
(2) Lead-free package only. Device is WEEE and RoHS compliant.
VINA
LXA
VINB
1
2
3
4
5
15
14
13
12
11
TOP VIEW
LXB
GNDA
VOUTA
CTLA0
GNDB
VOUTB
CTLB0
T
10
9
6
7
8
MLPQ: 4mm x 4mm 20 Lead
JA = 31°C/W
θ
Marking Information
198A
yyww
xxxxx
xxxxx
yyww = Date Code
xxxx = Semtech Lot No.
xxxx = Semtech Lot No.
2
SC198A
Absolute Maximum Ratings
Recommended Operating Conditions
VIN (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +7
VOUT (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to VIN +0.3
VLXA and VLXB (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-1 to VIN +1
Pin Voltage - All Other Pins (V) . . . . . . . . . -0.3 to (VIN + 0.3)
Output Short Circuit to GND Duration . . . . . Continuous
LXA and LXB Currents (A). . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2
ESD Protection Level(1) (kV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Ambient Temperature Range (°C) . . . . . . . . . . . . . -40 to +85
VIN (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7 to 5.5
Thermal Information
Thermal Resistance, Junction to Ambient(2) (°C/W) . . . . 31
Maximum Junction Temperature (°C) . . . . . . . . . . . . . . +150
Storage Temperature Range (°C). . . . . . . . . . . . -65 to +150
Peak IR Reflow Temperature (10s to 30s) (°C) . . . . . . . +260
Exceeding the above specifications may result in permanent damage to the device or device malfunction. Operation outside of the parameters
specified in the Electrical Characteristics section is not recommended.
NOTES:
(1) Tested according to JEDEC standard JESD22-A114-B.
(2) Calculated from package in still air, mounted to 3 x 4.5 (in), 4 layer FR4 PCB with thermal vias under the exposed pad per JESD51 standards.
Electrical Characteristics
Unless otherwise noted: VIN = 3.6V, VMODE/SYNC = VIN, L = 4.7μH, C = 10μF, TA = -40°C to +85°C. Typical values are at TA = 25°C for both outputs.
Parameter
Symbol
VIN
Conditions
Min
2.7
4.0
-3
Typ
Max
5.5
5.5
3
Units
V
VOUT = 1.8V
Input Voltage Range
VOUT Accuracy(1)
Line Regulation
V
OUT = 3.3V
ΔVOUT
ΔVLINE
IOUT = 10mA to 800mA , VIN ≥ 0.7V + VOUT
%
VIN = 2.7 to 5.5V, VOUT = 1.8V, IOUT = 300mA
0.2
%/V
V
IN = 4.0 to 5.5V, VOUT = 3.3V, IOUT = 300mA
IOUT = 10mA to 800mA, VOUT = 1.8V
Load Regulation
ΔVLOAD
0.0008
18
%/mA
IOUT = 10mA to 800mA, VOUT = 3.3V, VIN = 5.0V
Minimum Duty Cycle
LXA, LXB Current Limit
Quiescent Current
DCMIN
ILIM
IQ
%
A
1.2
IOUT = 0mA, SYNC = 0, ENA, ENB = VIN
VENA, VENB = 0, LXA, LXB = Open
VIN = 5.5V, VLX = 0V, PMOS
VIN = 5.5V, VLX = VIN, NMOS
ILXA, ILXB = 100mA
50
1
μA
μA
μA
μA
Ω
Shutdown Current
ISD
0.1
0.1
1
LXA and LXB
Leakage Current
I
LXA, ILXB
-2
0.1
P-Channel On Resistance
RDSP
0.35
3
SC198A
Electrical Characteristics (continued)
Parameter
Symbol
RDSN
Conditions
Min
Typ
Max
Units
Ω
N-Channel On Resistance
Start-Up Time
ILXA, ILXB = 100mA
0.25
tSTART
fOSC
5
ms
Oscillator Frequency
SYNC Frequency (upper)
SYNC Frequency (lower)
Thermal Shutdown
0.95
1.25
1.1
1.25
MHz
MHz
MHz
°C
fSYNCU
fSYNCL
THI
0.75
145
10
Thermal Shutdown
Hysteresis
THYSR
°C
UVLO Threshold
UVLO Hysteresis
Logic Input High(2)
VUVL
VUVLHYS
VIH
Decreasing VIN
2.4
1.6
2.5
50
2.6
0.6
V
mV
V
Logic Input Low(2)
VIL
V
Notes:
(1) See Output Voltage Options table in the Application Information section.
(2) For ENA, ENB, SYNC, CTLA0, CTLA1, CTLA2, CTLB0, CTLB1, CTLB2.
4
SC198A
Pin Descriptions
Pin #
1
Pin Name
Pin Function
VINA
LXA
Input power supply voltage for converter A
2
Connection point for the inductor on converter A
Ground reference to converter A
3
GNDA
VOUTA
CTLA0
CTLA1
CTLA2
GNDR
CTLB2
CTLB1
CTLB0
VOUTB
GNDB
LXB
4
Feedback control input for converter A
5
Voltage select control pin 0 for output A (see Table 1 — Output Voltage Options).
Voltage select control pin 1 for output A (see Table 1 — Output Voltage Options).
Voltage select control pin 2 for output A (see Table 1 — Output Voltage Options).
Ground for reference supply
6
7
8
9
Voltage select control pin 2 for output B (see Table 1 — Output Voltage Options).
Voltage select control pin 1 for output B (see Table 1 — Output Voltage Options).
Voltage select control pin 0 for output B (see Table 1 — Output Voltage Options).
Feedback control input for converter B
10
11
12
13
14
15
16
Ground reference for converter B
Connection point for the inductor on converter B
Input power supply voltage for converter B
VINB
ENB
Enable pin for output B
Oscillator synchronization input — connect to VIN for forced PWM mode, ground for power-save
mode or connect to an external clock for frequency synchronization.
17
MODE/SYNC
18
19
20
VINR
NC
Reference supply input
Not connected — Leave open
Enable pin for output A
ENA
Thermal pad for heatsinking purposes — connect to ground plane using multiple vias — not con-
nected internally
T
THERMAL PAD
5
SC198A
Block Diagram
17
1
SYNC
VINA
Oscillator and
Slope Generator
15
VINB
Error
Amp
A
Error
Amp
B
VREF1
VREF1
Current
Amp
Current
Amp
P Limit
Amp
P Limit
Amp
PWM
Comp
PWM
Comp
N Limit Amp
N Limit Amp
2
14 LXB
LXA
Switching Control Logic
VREF2
VREF2
13
3
GNDA
ENA
GNDB
16
20
ENB
4
5
6
7
12
11
10
VOUTB
CTLB0
CTLB1
CTLB2
VOUTA
CTLA0
CTLA1
Error
Amp
A
Error
Amp
B
Voltage
Select
Voltage
Select
VREF3
VREF3
9
CTLA2
VINR
VREF1
VREF2
VREF3
Voltage
References
18
8
GNDR
6
SC198A
Typical Characteristics
Efficiency vs. Load at VIN = 2.7V, Side A
Efficiency vs. Load at VIN = 3.6V, Side A
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
VOUT = 1.8V PSAVE
VOUT = 1.8V PSAVE
VOUT = 1.0V PSAVE
VOUT = 1.0V PSAVE
VOUT = 1.8V PWM
VOUT = 1.0 PWM
VOUT = 1.8V PWM
VOUT = 1.0 PWM
0.001
0.01
0.1
1
0.001
0.01
0.1
1
Load (A)
Load (A)
Efficiency vs. Load at VIN = 5.5V, Side A
Efficiency vs. Load at VIN = 5.5V, Side B
VOUT = 1.8V PSAVE
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
VOUT = 1.8V PSAVE
VOUT = 1.0V PSAVE
VOUT = 1.0V PSAVE
VOUT = 1.8V PWM
VOUT = 1.8V PWM
VOUT = 1.0 PWM
VOUT = 1.0 PWM
0.001
0.01
0.1
1
0.001
1
0.01
0.1
Load (A)
Load (A)
Line Regulation at 300mA
Load Regulation — VOUT=1.8V, VIN=3.6V
0.2
3
2
VOUT = 1.8V PWM
0.15
0.1
0.05
0
VOUT = 1.0 PWM
1
VOUT = 1.8V PWM
VOUT = 1.0 PWM
0
-0.05
-0.1
-0.15
-0.2
-1
-2
-3
0.001
0.01
0.1
1
2.7
3.26
3.82
4.38
4.94
5.5
Load (A)
Input (V)
7
SC198A
Typical Characteristics (continued)
VOUT vs. VIN — 3.3V Programmed Output
VOUT vs. VIN — 1.8V Programmed Output
1.854
1.836
1.818
1.8
4
IOUT = 300mA
3.5
IOUT = 300mA
IOUT = 800mA
3
IOUT = 800mA
2.5
2
1.5
1
1.782
1.764
1.746
0.5
0
4.38
3.82
5.5
3.26
4.94
2.7
2.7
3.26
3.82
4.38
4.94
5.5
Input (V)
Input (V)
Crosstalk in PSAVE
Crosstalk — Side A (PSAVE) Side B (PWM)
VIN=5.0V, 25°C, VOUTA = 1.0V, IOUTA = 80mA, VOUTB = 3.3V, IOUTB = 800mA
VIN=5.0V, 25°C, VOUTA = 1.0V, IOUTA = 80mA, VOUTB = 3.3V, IOUTB = 0mA
(50mV/div)
(50mV/div)
(100mV/div)
(100mV/div)
10μs
10μs
Transient in PSAVE
Transient in PWM
VOUT=1.0V, VIN=3.6V, 25°C, IOUT = 0 to 800mA
VOUT=1.8V, VIN=3.6V, 25°C, IOUT = 0 to 800mA
(5.0mV/div)
(5.0mV/div)
(200mV/div)
(200mV/div)
(200mV/div)
(200mV/div)
(1.0A/div)
(1.0A/div)
Time (200μs/div)
Time (200μs/div)
8
SC198A
Typical Characteristics (continued)
Switching Waveforms — VOUT=1.0V
Switching Waveforms — VOUT=1.8V
VIN=3.6V, 25°C, IOUT = 800mA
VIN=3.6V, 25°C, IOUT = 800mA
(2V/div)
(2V/div)
(10mV/div)
(10mV/div)
Time (400ns/div)
Time (400ns/div)
Switching Waveforms in PSAVE
Switching Waveforms in PSAVE
VOUT=1.8V, VIN=3.6V, 25°C, IOUT = 80mA
VOUT=1.0V, VIN=3.6V, 25°C, IOUT = 0mA
(2V/div)
(2V/div)
(10mV/div)
(50mV/div)
Time (4μs/div)
Time (20ms/div)
9
SC198A
Application Information
Programmable Output Voltage
Detailed Description
The SC198A has three control pins per output to allow
selection of a voltage level from eight predetermined
output voltage levels (see Table 1). CAUTION — All CTL
pins much be pulled high or low for proper operation
(they must not be allowed to float). The output voltage
can be selected while the device is enabled and loaded.
The SC198A is a dual step-down, pulse-width modulated
DC-DC converter with programmable output voltage and
power-save mode. This device has a 1MHz internal oscil-
lator that can be used during forced PWM mode or
power-save mode (PSAVE).
Operation
Table 1 — Output Voltage Options
During normal operation, the PMOS switch is activated on
each rising edge of the internal oscillator. Current feed-
back for the switching regulator is through the PMOS
current path, and it is amplified and summed with the
internal slope compensation network. The voltage feed-
back loop uses an internal feedback divider. The on-time
is determined by comparing the summed current feed-
back and the output of the error amplifier. The period is
set by the onboard oscillator or by an external clock
attached to the MODE/SYNC pin. When synchronizing to
an external frequency, the SC198A operates in PWM mode
only. The device has an internal synchronous NMOS recti-
fier and does not require a Schottky diode on the LX pin.
The device is designed to operate as a buck converter in
PWM mode with a fixed frequency of 1MHz. At light loads,
the part can enter PSAVE mode to maximize efficiency.
Programmable Output Voltage
Nominal Output
Voltage (V)
CTLA2/B2 CTLA1/B1 CTLA0/B0
A
B
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.8
1.8
2.2
2.5
2.7
2.8
2.9
3.0
3.3
Continuous Conduction and Oscillator
Synchronization
Output Filter
The SC198A converter also has internal loop compensa-
tion. The internal compensation is designed to work with
a specific output filter corner frequency defined by the
equation
The SC198A is designed to operate in continuous con-
duction mode, where it maintains a fixed frequency.
When the MODE/SYNC pin is tied high, the part runs
under control of the internal oscillator in PWM mode. The
part can be synchronized to an external clock by con-
necting a clock signal to the MODE/SYNC pin. The part
synchronizes to the rising edge of the clock.
1
fC
2S Lu COUT
When selecting output filter components, the LC product
should not vary over a wide range. The practical lower
limit for the inductor value is 4.7ꢀH to ensure system sta-
bility. Selection of smaller inductor and capacitor values
will shift the corner frequency higher, which may impact
stability. The internal compensation is designed to
operate with a single-pole output filter where L = 4.7ꢀH
and COUT = 10ꢀF.
Power-Save Mode Operation
The SC198A has a power-save mode (PSAVE) which may
be selected by tying the MODE/SYNC pin to GND.
Selecting PSAVE mode enables automatic activation of
PSAVE mode at light loads, thus maximizing efficiency
across the full load range. The device will automatically
detect the load current at which it should enter PSAVE
mode. The device is optimized to track maximum
efficiency.
10
SC198A
Application Information (continued)
In PSAVE mode (see Figure 1), VOUT regulation is con-
trolled by bursts in switching. While the output voltage is
between the low and high voltage thresholds, switching
is stopped to reduce loss. When the voltage drops to the
lower threshold, the switch bursts at a fixed on time until
the upper threshold is reached. At this point the output
voltage is allowed to ramp down to the lower threshold
without switching to conserve power. In the PSAVE mode,
less switching is used. This results in less power loss which
can be seen in the difference of efficiency between PWM
mode and PSAVE mode at light loads.
Protection Features
The SC198A provides the following protection features:
• Thermal Shutdown
• Current Limit
• Over-Voltage Protection
• Soft-Start
Thermal Shutdown
The SC198A has a thermal shutdown feature to protect
against damage if the junction temperature exceeds
145°C. In thermal shutdown, the on-chip power devices
are disabled, tri-stating the LX output. Switching resumes
when the temperature drops by 10°C. During this time, if
the output voltage decreases by more than 60% of its
programmed value, a soft-start will be invoked.
Higher Load
Applied
PSAVE Mode at
Moderate Load
PSAVE Mode at
High Load
PWM Mode at
High Load
BURST
OFF
BURST OFF
BURST
PWM Mode
Upper
Thershold
Limit
Lower
Thershold
Limit
VOUT
Current Limit
The internal power devices are protected by current limit
functions. In the event of a short to ground on the output,
the part enters frequency foldback mode. This causes the
switching frequency to decrease by a factor determined
by the output voltage. This prevents the inductor current
from staircasing.
PSAVE
Exit
Threshold
Inductor
Current
Over-Voltage Protection
0A
In the event of an over-voltage on the output in switcher
mode, the PWM drive is disabled, effectively tri-stating
the LX output. The part will not resume switching until
the output voltage has fallen below 2% of the regulation
voltage.
Time
Figure 1 — PSAVE Operation
The PSAVE switching burst frequency is controlled such
that the inductor current ripple during the burst is similar
to that in PWM mode.
Soft-Start
The soft-start mode operates by limiting the current
through the inductor and controlling the switching fre-
quency. The current limit is increased over several
milliseconds in discrete steps. This has the desired effect
of limiting in-rush current from the input supply. The soft-
start mode is cancelled once the output reaches
regulation. Soft-start is only re-enabled by power cycling,
toggling enable, a UVLO event, or shutdown.
The SC198A automatically detects when to exit PSAVE
mode. The device sets a maximum peak current in PSAVE
mode, and then detects when VOUT falls due to the load
increasing above the level that the peak current will
support.
For the SC198A to exit PSAVE mode, the load must be
increased, which causes VOUT to decrease until the PSAVE
exit threshold is reached. PSAVE levels are set high to
minimize the undershoot when the SC198A exits PSAVE.
Figure 1 shows PSAVE mode operation and exiting into
PWM mode at increased load.
11
SC198A
Applications Information (continued)
Output Capacitor
Inductor Selection
Output voltage ripple is dominated by the filter capaci-
tance ESR as shown in the equation
The SC198A was designed for optimum performance
when using a 4.7ꢀH inductor. The magnitude of the
inductor current ripple is dependent on the inductor value
and is determined by the equation
VOUT(P-P) = DIL × ESRCOUT
Capacitors with X7R or X5R ceramic dielectric are strongly
recommended for their low ESR and superior temperature
and voltage characteristics. Y5V capacitors should not be
used as their temperature coefficients make them unsuit-
able for this application.
VOUT
VOUT
§
¨
·
¸
ǻIL
1ꢀ
Lu fosc
VIN
©
¹
This equation demonstrates the relationship between
input voltage, output voltage, and inductor ripple current.
The inductor should also have a low DCR to minimize the
conduction losses and maximize efficiency. The minimum
DC current rating of the inductor should be equal to the
maximum load current plus half of the inductor current
ripple as shown by the equation
When selecting capacitors for the application, first con-
sider the DC voltage characteristic of the capacitor. The
capacitance value at the DC operating voltage may be
considerably lower than the rated value. Table 3 lists rec-
ommended capacitor values which have been chosen to
minimize the impact of this limitation. A 10ꢀF ceramic
capacitor is the minimum recommended value for the
output filter capacitor. It is important to ensure the capaci-
tor value does not drop below 9ꢀF for the operating range
of the application.
ǻIL
IL(Peak) IOUT(MAX) ꢀ
2
Final inductor selection will depend on various design
considerations such as efficiency, EMI, size, and cost. Table
2 lists some manufacturers of practical inductor options.
Table 3 — Recommended Capacitors
Rated
Voltage
(VDC)
Manufacturer/
Part No.
Value
(ꢀF)
Case
Size
Table 2 — Recommended Inductors
Type
Rate Tolerance
Current
(A)
Dimensions
LxWxH
Manufacturer/
Part No.
Value DCR
(+%)
Murata
GRM21BR60J226ME39
(ꢀH)
(Ω)
(mm)
22
10
10
6.3
6.3
6.3
X5R
X5R
X5R
0805
0603
0805
Coilcraft
LPO6610-472ML
Murata
GRM188R60J106ME47
4.7
0.20
1.1
2.10
1.5
20
20
20
6.60 × 5.50 × 1.10
5.87 × 4.89 × 3.81
6.60 × 4.50 × 13.0
Coilcraft
1812PS-472KLB
Murata
GRM21BR60J106KE01B
4.7
4.7
0.11
0.09
Coilcraft
D01608C-472ML
Capacitor Selection
Input Capacitor
The source input current to a buck converter is non-con-
tinuous. To prevent large input voltage ripple a low ESR
ceramic capacitor is required. A minimum value of 4.7ꢀF
should be used for sufficient input voltage filtering and a
22ꢀF MLCC may be used for optimum input voltage
filtering.
12
SC198A
Applications Information (continued)
PCB Layout Considerations
Poor layout can degrade the performance of the DC-DC
converter and can be a contributory factor in EMI prob-
lems, ground bounce, thermal issues, and resistive voltage
losses. Poor regulation and instability can result.
The following design rules are recommended:
1. Place the inductor and filter capacitors as close to the
device as possible and use short wide traces between
the power components.
2. Route the output voltage feedback path away from
inductor and LX node to minimize noise and magnetic
interference.
3. Use a ground plane to further reduce noise interference
on sensitive circuit nodes.
VIN
GND
GND
CinB
CinA
LXA
LXB
VOUTA
GND
GND
VOUTB
13
SC198A
Outline Drawing – MLPQ-20 4x4
A
D
B
E
DIMENSIONS
INCHES MILLIMETERS
MIN NOM MAX MIN NOM MAX
DIM
A
. 031
. 040
0.90 1.00
. 035
. 001
0.80
. 002 0.00 0.02 0.05
A 1 . 000
-
-
-
-
(.008)
A2
b
D
(0.20)
0.25 0.30
PIN 1
INDICATOR
. 007
. 010 . 012 0.18
. 153 . 157 . 161 3.90 4. 00 4.10
(LASER MARK)
D1
E
2.70
2.80
. 100 . 106 . 110 2.55
. 153 . 157 . 161 3.90 4. 00 4.10
E1 . 100
2.70 2.80
. 106 . 110 2.55
. 020 BSC
0. 50 BSC
e
L
N
. 011 . 016 . 020 0.30 0.40 0.50
20
20
0.10
0.10
aaa
. 004
. 004
A2
bbb
A
SEATING
PLANE
aaa
C
A1
C
D1
LxN
E/2
E1
2
1
N
bxN
bbb
C A B
e
D/2
NOTES :
1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).
2. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMINALS
14
SC198A
Land Pattern – MLPQ-20 4x4
K
DIMENSIONS
INCHES MILLIMETERS
DIM
(.155)
.122
.106
.106
.021
.010
.033
.189
(3.95)
3.10
2.70
2.70
0.50
0.25
0.85
4.80
C
G
H
K
P
X
Y
Z
Z
G
Y
(C)
H
X
P
NOTES:
1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES O.NLY
CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR
COMPANY’S MANUFACTURING GUIDELINES ARE MET
Contact Information
Semtech Corporation
Power Mangement Products Division
200 Flynn Road, Camarillo, CA 93012
Phone: (805) 498-2111 Fax: (805) 498-3804
www.semtech.com
15
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