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SP6659 Datasheet(PDF) 2 Page - Sipex Corporation

Part No. SP6659
Description  1.5MHz, 600mA Synchronous Buck Regulator
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Maker  SIPEX [Sipex Corporation]
Homepage  http://www.sipex.com
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SP6659 Datasheet(HTML) 2 Page - Sipex Corporation

 
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Date: 9/25/06 Rev C
SP6659 1.5MHz, 600mA Synchronous Buck Regulator
© 2006 Sipex Corporation
PIN DESCRIPTION
Input Supply Voltage ......................................................... -0.3V to +6V
RUN, V
FBVoltages .................................................. -0.3V to (VIN + 0.3V)
SW Voltage ............................................................ -0.3V to (V
IN + 0.3V)
P-Channel Switch Source Current (DC) ..................................... 800mA
N-Channel Switch Sink Current (DC) ......................................... 800mA
Peak Switch Sink and Source Current ........................................... 1.3A
Operating Temperature ................................................. -40°C to +85°C
Storage Temperature ................................................. -65°C to +150 °C
Junction Temperature (Note 1) .................................................. 125 °C
Lead Temperature (Soldering, 10 sec) ....................................... 300 °C
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the
specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.
ELECTRICAL CHARACTERISTICS
Note 1: Junction Temperature TJ is calculated from the ambient temperature TA and ower dissipation PD
according to the following formula: TJ = TA + PD X 220°C/W
PIN #
PIN NAME
DESCRIPTION
1
RUN
Power down control pin. Forcing this pin above 1.5V enables the device. Forcing this
pin below 0.3V shuts down the device.
2
GND
Ground pin.
3
SW
Switching node.
4
V
IN
Power supply pin
5
VFB/ V
OUT
Adjustable Version: VFB, Feedback Input Pin. Connect FB to the center point of the
external resistor divider. The feedback threshold voltage is 0.6V.
Fixed Output Version: VOUT, Output Voltage Feedback Pin. An internal resistive
divider drops the output voltage down for comparison to the internal reference voltage.
___________________________ THERMAL
RESISTANCE
Thermal Resistance is specified with approximately 1 square inch of 1 ounce copper.
O
JA ................................................................207.4 ° C/W
O
JC ...............................................................110 ° C/W
VIN = VRUN = 3.6V, Io = 0mA, T AMB = -40ºC to +85ºC, typical values at 25ºC unless otherwise noted.
The ♦ denotes the specifications which apply over the full operating temperature range, unless otherwise specified.
PARAMETER
MIN
TYP
MAX
UNITS
Input Voltage Range
2.5
5.5
V
Input DC Supply Current
Active Mode
300
400
µA
VFB = 0.5V, VIN = VRUN
Shutdown Mode
0.1
1
µA
VIN = 3.6V, VRUN = 0.0V
0.5880
0.6000
0.6120
TA = +25ºC
0.5865
0.6000
0.6135
V
0ºC < TA < +85ºC
0.5820
0.6000
0.6180
-40ºC < TA < +85ºC
VFB Input Bias Current
85
300
nA
VFB = 1.0V
VFB Line Regulation
0.4
1
%/V
VIN = 2.5V to 5.5V
VFB Load Regulation
0.01
%/mA
ILOAD = 0mA to 600mA
1.455
1.500
1.545
V
SP6659EK1-1.5, -40ºC < TA < +85ºC
1.746
1.800
1.854
V
SP6659EK1-1.8, -40ºC < TA < +85ºC
Minimum Output Voltage
0.6
V
Peak inductor current
0.7
1.0
1.2
A
VFB = 0.5V, VIN = 2.5V
Oscillator frequency
0.8
1.4
1.8
MHz
Closed Loop, ILOAD = 100mA
P-channel ON resistance
0.4
0.6
ISW = 100mA
N-channel ON resistance
0.4
0.6
ISW = -100mA
VIN = 3.6V, VRUN = 0.0V,
Vsw = 0.0V, Vsw = VIN
Run Threshold Voltage
0.2
1
1.3
V
Run Leakage Current
±0.01
±1.5
µA
CONDITIONS
Regulated Output Voltage
±1.0
µA
VFB (Feedback Voltage)
SW Leakage Current
±0.01


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