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Vishay Intertechnology Electronic Components Datasheet

SIP12201 Datasheet

Synchronous Step Down Controller

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SIP12201 pdf
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Synchronous Step Down Controller
SiP12201
Vishay Siliconix
DESCRIPTION
SiP12201 is a synchronous step down controller
designed for use in dc-dc converter circuits requiring
output currents as high as 10 amperes. SiP12201 is
designed to require a minimum number of external
components, simplifying design and layout. It accepts
input voltages from 4.2 V to 26.0 V, providing an
adjustable output with voltage ranging from 0.6 V to 5 V.
SiP12201 includes an combination Compensation/
Shutdown pin. Protection features include undervolt-
age lockout, output current limit, and thermal shut-
down.
SiP12201 is available in a lead (Pb)-free MLP33-10
package and is specified to operate over the range of
- 40 °C to 85 °C.
FEATURES
• 4.2 V to 26.0 V Input Voltage Range
• Adjustable Output Voltage - 0.6 to 5.5 V
• For Converter loads up to 10 A
• High efficiency - 93%
• Uses N-channel MOSFETs
• 500 kHz operation
• Internal Soft Start
• Shutdown pin
• Output Current Limit
• Minimum External Components
• MLP33-10 Package
APPLICATIONS
• Distributed Power
• Desktop & Notebook Computers
• Battery Operated Equipment
• Point of Load Regulation
• DSP Cores
• Automotive Entertainment
TYPICAL APPLICATION CIRCUIT
VIN
Compensation
Shutdown
GND
VL
VIN
VIN
DH
LX
COMP/SD
DL
AAGGNNDD
FB
PPGGNNDD
VOUT
Document Number: 73541
S-52083–Rev. A, 10-Oct-05
www.vishay.com
1


Vishay Intertechnology Electronic Components Datasheet

SIP12201 Datasheet

Synchronous Step Down Controller

No Preview Available !

SIP12201 pdf
SiP12201
Vishay Siliconix
New Product
ABSOLUTE MAXIMUM RATINGS
Parameter
VIN, LX to GND
BST to LX
FB, Comp/SD to GND
Power Dissipationa, b
Maximum Junction Temperature
Storage Temperature
Notes
a. Device mounted with all leads soldered or welded to PC board
b. Derate 14 mW/°C above + 85 °C
Limit
29
6
- 0.3 to 6
560
125
- 55 to + 150
Unit
V
mW
°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only,
and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is
not implied. Exposure to absolute maximum rating/conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING RANGE
Parameter
Input Voltage Range
Output Voltage Adjustment Range
Operating Temperature Range
Limit
4.2 to 26.0
0.6 to 5.5
- 40 to + 85
Unit
V
°C
SPECIFICATIONSa
Parameter
Controller
Input Voltage
Quiescent Current
Internal Supply Voltage
Oscillator Frequency
Oscillator Ramp Amplitude
Max Duty Cycle
Feedback Voltage
FB input Bias Current
Transconductance
Soft Start
Inputs and Outputs
SD Input Voltage
Shutdown Current
MOSFET Drivers
Break-before-make time
Highside Driver
Output Voltage
On resistance
Rise time
Fall time
Symbol
VIN
VL
fOSC
VOSC
DC
VFB
IFB
GM
VIL
ISD
tBBM
VDH
RDSHH
RDSHL
trH
tfH
Test Condition Unless Specified
VIN = 5.5 to 26 V
Non switching
TA = 25°C
VIN = VBST = VLX = 4.5 V
VIN = VBST = VLX = 4.5 V
VIN = VL = VBST = 5 V, CL= 2.7 nF
VIN = VL = VBST = 5 V, CL= 2.7 nF
Mina
Limits
-40 to 85°C
Typb
Maxa
Unit
4.2
4.8
400
87
0.591
0.585
850
500
1
93
0.600
2
4
26.0
1250
5.5
600
0.609
0.615
100
V
µA
V
kHz
V
%
V
nA
mA/V
ms
0.15
120 225
V
µA
10 ns
4.5
8.7 13
2.3 3.6
51
15
V
ns
www.vishay.com
2
Document Number: 73541
S-52083–Rev. A, 10-Oct-05


Part Number SIP12201
Description Synchronous Step Down Controller
Maker Vishay Siliconix
Total Page 11 Pages
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