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SI9165_07 Datasheet, PDF (2/10 Pages) Vishay Siliconix – High Frequency 600-mA Synchronous Buck/Boost Converter
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Si9165
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS
Parameter
Voltages Referenced to GND
VDD
MODE, PWM/PSM, SYNC, SD, VREF, ROSC, COMP, FB
VO
PGND
Voltages Referenced to PGND
VS, VIN/OUT
COIL
Peak Output Current
Continuous Output Current
Storage Temperature Range
Operating Junction Temperature
Power Dissipation (Package)a
20-Pin TSSOP (Q Suffix)b
Thermal Impedance (ΘJA)
Notes:
20-Pin TSSOP
a. Device Mounted with all leads soldered or welded to PC board.
b. Derate 8.0 mW/°C above 25 °C.
Limit
6.5
- 0.3 V to VDD + 0.3 V
- 0.3 V to VS + 0.3 V
± 0.3
6.5
- 0.4 V to VIN/OUT + 0.4 V
3
1
- 65 to 150
150
1.0
125
Unit
V
V
A
°C
W
°C/W
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 CONDITIONS
Parameter
Voltages Referenced to GND
VDD
MODE, PWM/PSM, SYNC, SD
Voltages Referenced to PGND
VS, VIN/OUT
FOSC
ROSC
VREF Capacitor
Limit
Unit
2.7 V to 6 V V
V
0 V to VDD
2.7 V to 6 V
V
200 kHz to 2 MHz
25 kΩ to 300 kΩ
kΩ
0.1
µF
SPECIFICATIONS
Parameter
Reference
Output Voltage
Load Regulation
Power Supply Rejection
UVLO
Under Voltage Lockout (turn-on)
Hysteresis
Soft-Start Time
SS Time
Mode
Logic High
Logic Low
Input Current
Symbol
Test Conditions
Unless Otherwise Specified
2.7 V < VDD < 6 V,
VIN/OUT = 3.3 V, VS = 3.3 V
Limits
Mina
Typb
Maxa
Unit
VREF
IREF = 0 A
TA = 25 °C, IREF = 0
1.268
1.3
1.332
V
1.280
1.3
1.320
ΔVREF
VDD = 3.3 V, - 500 µA < IREF < 0
3
mV
PSRR
60
dB
VUVLO/LH
VHYS
VUVLOLH - VUVLOHL
2.3
2.4
2.5
V
0.1
tSS
6
ms
VIH
0.7 VDD
V
VIL
0.3 VDD
IL
- 1.0
1.0
µA
www.vishay.com
2
Document Number: 70845
S-72058-Rev. D, 08-Oct-07
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