150KHZ, STEP-DOWN DC/DC CONVERTER P1696 series step-down switchin

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150KHZ, STEP-DOWN DC/DC CONVERTER P1696 series step-down switchin

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UNISONIC TECHNOLOGIES CO., P1696
150KHZ, STEP-DOWN DC/DC CONVERTER
P1696 series step-down switching regulator able provide output current. available output voltages 2.5V 3.3V, 12V, adjustable output version.
LINEAR INTEGRATED CIRCUIT
FEATURES
*Output load current: *Adjustable version output voltage range, 1.23V 17.5V±4% *Operating voltage *Low power standby mode *High efficiency *Internal current thermal limit
SOP-8
*Pb-free plating product number:P1696L
ORDERING INFORMATION
Ordering Number Normal Lead Free Plating P1696-xx-S08-R P1696L-xx-S08-R P1696-xx-S08-T P1696L-xx-S08-T Package SOP-8 SOP-8 Packing Tape Reel Tube
5,6,7,8 NAME Output (Feedback) (Shutdown) DESCRIPTION Operating voltage input Switching output Output voltage feedback control ON/OFF shutdown Circuit ground
www.unisonic.com.tw Copyright 2008 Unisonic Technologies Co.,
QW-R103-035,D
P1696
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO.,
www.unisonic.com.tw
QW-R103-035,D
P1696
ABSOLUTE MAXIMUM RATINGS
LINEAR INTEGRATED CIRCUIT
PARAMETER SYMBOL RATINGS UNIT Maximum Supply Voltage Operating Voltage VOPR ON/OFF Input Voltage VON/OFF -0.3 Feedback Voltage -0.3 Output Voltage Ground (Steady State) VOUT Power Dissipation Internally limited Junction Temperature +150 Operating Temperature TOPR +125 Storage Temperature TSTG +150 Note: Absolute maximum ratings those values beyond which device could permanently damaged. Absolute maximum ratings stress ratings only functional device operation implied.
ELECTRICAL CHARACTERISTICS
(TJ=25°, VIN=12V 2.5V 3.3V, Adjustable version VIN=24V version, ILOAD=500mA.) PARAMETER SYMBOL TEST CONDITIONS UNIT 5.0VVIN24V, 0.2AILOAD2A 2.5V 6.0VVIN24V, 0.2AILOAD2A 3.168 3.432 3.3V Output Voltage VOUT 7.5VVIN24V, 0.2AILOAD2A 5.0V 15VVIN24V, 0.2AILOAD2A 11.52 12.0 12.48 2.5V VIN=12V, ILOAD=2A 3.3V VIN=12V, ILOAD=2A Efficiency 5.0V VIN=12V, ILOAD=2A VIN=24V, ILOAD=2A P1696-ADJ 4.5VVIN24V, 0.2AILOAD2A 1.19 1.230 1.267 Feedback Voltage VOUT programmed Efficiency VIN=12V, VOUT=3V, ILOAD=2A OUTPUT VOLTAGE Feedback Bias Current IBIAS Adjustable Version Only, VFB=1.3V Oscillator Frequency fOSC (Note Saturation Voltage VSAT IOUT=2A (Note 1.16 (Note Duty Cycle (ON) (Note Duty Cycle (OFF) Current Limit Peak Current (Notes Output=0V (Notes Output Leakage Current Output=-1V (Note Quiescent Current (Note Standby Quiescent Current ISTBY ON/OFF Pin=5V (OFF) (Note ON/OFF CONTROL (Regulator /OFF Logic Input Threshold Voltag High (Regulator OFF) VLOGIC=2.5V (Regulator OFF) /OFF Input Current VLOGIC=0.5V (Regulator 0.02 Note switching frequency reduced when second stage current limit activated. diode, inductor capacitor connected output pin. Feedback removed from output connected force output transistor switch Feedback removed from output connected 2.5V 3.3V, ADJ. version, version, force output transistor switch OFF.
UNISONIC TECHNOLOGIES CO.,
www.unisonic.com.tw
QW-R103-035,D
P1696
TYPICAL APPLICATION
(Fixed Output Voltage Version)
LINEAR INTEGRATED CIRCUIT
ADJUSTABLE OUTPUT VOLTAGE VERSIONS
Where VREF 1.23V
UNISONIC TECHNOLOGIES CO.,
www.unisonic.com.tw
QW-R103-035,D
P1696
TYPICAL CHARACTERISTICS
Normalized Output Voltage 5.15 VIN=24V,LLOAD=2A Normalized TJ=25 5.10
LINEAR INTEGRATED CIRCUIT
Line Regulation 5.15 5.10 VOUT=5V, ILOAD=100mA Normalized TJ=25
Output Voltage
Output Voltage
5.05
5.05
5.00
5.00
4.95
4.95
4.90 4.85
4.90 4.85
Junction Temperature
Input Voltage
Efficiency 1.60 Load 1.40 5.0V Saturation Voltage Efficiency 1.20
Switch Saturation Voltage
3.3V
1.00
0.80
0.60 Switch Current(A)
Input Voltage
Switch Current Limit 5.00 =12V, VOUT 4.75 Switch Current Limit 4.50 25.0 30.0
Operating Quiescent Current 4.5V< ISWITCH
Supply Current (mA)
20.0 Switch 15.0
4.25
4.00
10.0 Switch 5.00 0.00
3.75 3.50
Junction Temperature
Junction Temperature
UNISONIC TECHNOLOGIES CO.,
www.unisonic.com.tw
QW-R103-035,D
P1696
TYPICAL CHARACTERISTICS(Cont.)
Shutdown Quiescent Current VON/OFF=5V Supply Voltage
LINEAR INTEGRATED CIRCUIT
Minimum Operating Supply Voltage VOUT=1.23V ILOAD=200mA
Current (uA)
Supply Voltage
Juntion Temperature
ON/OFF Threshold Voltage Threshold Voltage
ON/OFF Current (Sinking) VIN=24V -40< <125
Current (uA)
Junction Temperature
ON/OFF Voltage
Switch Frequency =24V, LOAD=2A Normalized TJ=25 Bias Current (nA)
Feedback Bias Current
Frequency (kHz)
Adjustable Version Only Junction Temperature Junction Temperature
UNISONIC TECHNOLOGIES CO.,
www.unisonic.com.tw
QW-R103-035,D
P1696
LINEAR INTEGRATED CIRCUIT
assumes responsibility equipment failures that result from using products values that exceed, even momentarily, rated values (such maximum ratings, operating condition ranges, other parameters) listed products specifications products described contained herein. products designed life support appliances, devices systems where malfunction these products reasonably expected result personal injury. Reproduction whole part prohibited without prior written consent copyright owner. information presented this document does form part quotation contract, believed accurate reliable changed without notice.
UNISONIC TECHNOLOGIES CO.,
www.unisonic.com.tw
QW-R103-035,D

150KHZ, STEP-DOWN DC/DC CONVERTER P1696 series step-down switchin

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