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Vishay Intertechnology Electronic Components Datasheet

SIP12202 Datasheet

Synchronous Step Down Controller

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SIP12202 pdf
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Synchronous Step Down Controller
SiP12202
Vishay Siliconix
DESCRIPTION
SiP12202 is a synchronous step down controller
designed for use in dc-dc converter circuits requiring
output currents as high as 10 amperes. SiP12202 is
designed to require a minimum number of external
components, simplifying design and layout. It accepts
input voltages from 2.7 V to 5.5 V, providing an adjust-
able output with voltage ranging from 0.6 V to 5.5 V.
SiP12202 includes a combination Compensation/
Shutdown pin. Protection features include undervolt-
age lockout, Power Good output, output current limit,
and thermal shutdown.
SiP12202 is available in a lead (Pb)-free MLP-33-10
package and is specified to operate over the range of
- 40 °C to 85 °C.
TYPICAL APPLICATION CIRCUIT
FEATURES
• 2.7 V to 5.5 V Input Voltage Range
• Adjustable Output Voltage - 0.6 to 5.5 V
• For Converter loads up to 10 A
• High efficiency - 93%
• Uses High Side P-Channel MOSFET
• Uses Low Side N-Channel MOSFET
• 500 kHz operation
• Internal Soft Start
• Power Good Indication
• 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
VIN
Power Good
Compensation/
Shutdown
GND
VIN
VIN DH
LX
PG
DL
COMP/SD
FB
AAGGNNDDPGGNND
VOUT
Document Number: 73542
S-52083–Rev. A, 10-Oct-05
www.vishay.com
1


Vishay Intertechnology Electronic Components Datasheet

SIP12202 Datasheet

Synchronous Step Down Controller

No Preview Available !

SIP12202 pdf
SiP12202
Vishay Siliconix
New Product
ABSOLUTE MAXIMUM RATINGS
Parameter
VIN, LX to GND
FB, PG, Comp/SD to GND
Power Dissipationa, b
Maximum Junction Temperature
Storage Temperature
Limit
6
- 0.3 to 6
560
125
- 55 to + 150
Unit
V
mW
°C
Notes
a. Device mounted with all leads soldered or welded to PC board
b. Derate 14 mW/°C above + 85 °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
2.7 to 5.5
0.6 to 5.5
- 40 to + 85
Unit
V
°C
SPECIFICATIONS
Parameter
Controller
Input Voltage
Quiescent Current
Switching Oscillator Frequency
Oscillator Ramp Amplitude
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 - PFET Turn On
Fall time - PFET Turn Off
Lowside Driver
Output Voltage
On resistance
Rise time - NFET Turn On
Fall time - NFET Turn Off
Symbol
Test Condition Unless Specified
VIN = 5.0
Mina
Limits
-40 to 85°C
Typb
Maxa
Unit
VIN
fOSC
VOSC
VFB
IFB
GM
Non Switching
TA = 25 °C
2.7
400
0.591
0.585
0.6
500
1
0.600
2
4
5.5
1
600
0.609
0.615
100
V
mA
kHz
V
V
nA
mA/V
ms
VIL
IIL
tBBM
VDH
RDSHH
RDSHL
trH
tfH
VIN = 4.5 V
VIN = 4.5 V
VIN = 5 V, CL = 2.7 nF
VIN = 5 V, CL = 2.7 nF
0.15 V
30 60 µA
30 ns
4.5
1.3 1.9
2.8 4.4
64
8
V
ns
VDL
RDSLH
RDSLL
trL
tfL
VIN = 4.5 V
VIN = 4.5 V
VIN = 5 V, CL = 2.7 nF
VIN = 5 V, CL = 2.7 nF
4.5
5.5 8.2
0.85 1.4
83
6.6
V
ns
www.vishay.com
2
Document Number: 73542
S-52083–Rev. A, 10-Oct-05


Part Number SIP12202
Description Synchronous Step Down Controller
Maker Vishay Siliconix
Total Page 10 Pages
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