LM2599 SIMPLE SWITCHER® 150kHz 2000 SIMPLE SWITCHER Power Convert
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LM2599 SIMPLE SWITCHER® 150kHz
2000 SIMPLE SWITCHER Power Converter Step-Down Voltage Regulator with Features LM2599 19951106 33220 24060 11800 ds012582
Converted nat2000 updated segment reflect base added figure more text Normal Operation under Soft Start Capacitor section.
LM2599
LM2599
SIMPLE SWITCHER® 150kHz
LM2599 3.3V5V12V LM2596 LM2599 150kHz TO-220 TO-263 LM2599
3.3V5V12V 1.2V TO-220 TO-263( 150kHz
Note: 5,382,918
20001214
SIMPLE SWITCHER® Switchers Made Simple®
National Semiconductor Corporation
Printed Japan 5/2001
LM2599
(Note
(Note
(VIN) (Note SD/SS (Note
1.5V
4.5V
LM2599-3.3
Symbol Parameter Conditions (Note SYSTEM PARAMETERS (Note Test Circuit Figure VOUT Output Voltage 4.75V 40V, 0.2A ILOAD 3.168/3.135 3.432/3.465 Efficiency 12V, ILOAD V(min) V(max) LM2599-3.3 Limit (Note Units (Limits)
LM2599-5.0
Symbol Parameter Conditions (Note SYSTEM PARAMETERS (Note Test Circuit Figure VOUT Output Voltage 40V, 0.2A ILOAD 4.800/4.750 5.200/5.250 Efficiency 12V, ILOAD V(min) V(max) LM2599-5.0 Limit (Note Units (Limits)
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LM2599
LM2599-12
Symbol Parameter Conditions (Note SYSTEM PARAMETERS (Note Test Circuit Figure VOUT Output Voltage 40V, 0.2A ILOAD 11.52/11.40 12.48/12.60 Efficiency 25V, ILOAD V(min) V(max) LM2599-12 Limit (Note Units (Limits)
LM2599-ADJ
Symbol Parameter Conditions LM2599-ADJ (Note SYSTEM PARAMETERS (Note Test Circuit Figure Feedback Voltage 4.5V 40V, 0.2A ILOAD VOUT programmed Circuit Figure Efficiency 12V, VOUT ILOAD 1.230 1.193/1.180 1.267/1.280 V(min) V(max) Limit (Note Units (Limits)
3.3V5V 12V12V ILOAD 500mA Symbol Parameter Conditions LM2599-XX (Note DEVICE PARAMETERS Feedback Bias Current Adjustable Version Only, 1.3V (Note 50/100 Oscillator Frequency 127/110 173/173 VSAT Saturation Voltage IOUT (Note (Note (Note (Note Peak Current, (Note (Note 1.16 1.4/1.5 Duty Cycle (ON) Duty Cycle (OFF) Current Limit 3.6/3.4 6.9/7.5 Output Leakage Current (Note (Note (Note Output Output A(min) A(max) A(max) mA(max) (max) kHz(min) kHz(max) V(max) Limit (Note Units (Limits)
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LM2599
3.3V5V ILOAD 500mA 12V12V Symbol Parameter Conditions LM2599-XX (Note DEVICE PARAMETERS ISTBY Shutdown Threshold Voltage Soft-start Voltage Shutdown Current Soft-start Current Low, (Shutdown Mode) High, (Soft-start Mode) VOUT Nominal Output Voltage VOUT Nominal Output Voltage VSHUTDOWN 0.5V VSoft-start 2.5V FLAG/DELAY CONTROL Test Circuit Figure Regulator Dropout Detector Threshold Voltage VFSAT Flag Output Saturation Voltage Flag Output Leakage Current Delay Threshold Voltage Delay Source Current Delay Saturation (Flag High (Flag OFF) VOUT Regulated VDELAY 0.5V (Flag 350/400
Note Note Note Note Note
Units (Limits)
Limit (Note
Operating Quiescent Current Standby Quiescent Current Thermal Resistance
Open (Note
mA(max) 200/250 A(max) V(max) V(min) A(max) A(max) (min) (max) 0.7/1.0 V(max) 1.21 1.29 V(min) V(max) A(max) mV(max)
(Note
TO220 TO263 Package, Junction Case TO220 Package, Juncton Ambient (Note TO263 Package, Juncton Ambient (Note TO263 Package, Juncton Ambient (Note TO263 Package, Juncton Ambient (Note
SHUTDOWN/SOFT-START CONTROL Test Circuit Figure
(Flag
ISINK VDELAY 0.5V VFLAG
1.25
100pF 1.5k (SQC) (AOQL) LM2599 Figure
Note Note
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LM2599
Note Note
Note /3.3V/5V 12V12V Note Note TO-220 Note TO-263 Note TO-263 Note TO-263 LM2599S Switchers Made Simple
(Figure
Normalized Output Voltage Line Regulation Efficiency
Switch Saturation Voltage
Switch Current Limit
Dropout Voltage
Operating Quiescent Current
Shutdown Quiescent Current
Minimum Operating Supply Voltage
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LM2599
(Figure
Feedback Bias Current Flag Saturation Voltage Switching Frequency
Soft-start
Shutdown /Soft-start Current
Daisy Current
Soft-start Response
Shutdown/Soft-start Threshold Voltage
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LM2599
(Figure
Continuous Mode Switching Waveforms 20V, VOUT ILOAD COUT COUT Discontinuous Mode Switching Waveforms 20V, VOUT ILOAD COUT COUT
Output Voltage, 10V/div. Inductor Current 1A/div. Output Ripple Voltage, mV/div.
Output Voltage, 10V/div. Inductor Current 0.5A/div. Output Ripple Voltage, mV/div.
Horizontal Time Base: s/div.
Horizontal Time Base: s/div.
Load Transient Response Continuous Mode 20V, VOUT ILOAD COUT COUT
Load Transient Response Discontinuous Mode 20V, VOUT ILOAD COUT COUT
Output Voltage, mV/div. (AC).
Load Pulse
Output Voltage, mV/div. (AC) Load Pulse
Horizontal Time Base: s/div.
Horizontal Time Base: s/div.
Bent Staggered Leads, Through Hole Package 7-Lead TO-220
Surface Mount Package 7-Lead TO-263
Order Number LM2599T-3.3, LM2599T-5.0, LM2599T-12 LM2599T-ADJ Package Number TA07B
Order Number LM2599S-3.3, LM2599S-5.0, LM2599S-12 LM2599S-ADJ Package Number TS7B
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LM2599
Fixed Output Voltage Versions
Component Values shown 15V, VOUT ILOAD 50V, Aluminum Electrolytic Nichicon Series" COUT Aluminum Electrolytic, Nichicon Series" Schottky Rectifier, 1N5825
Typical Values CDELAY RPull 4.7k
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LM2599
Adjustable Output Voltage Versions
1.23V
Select approximately resistor best stability. Component Values shown 20V, VOUT 10V, ILOAD CIN: 35V, Aluminum Electrolytic Nichicon Series" COUT: Aluminum Electrolytic, Nichicon Series" Schottky Rectifier, 1N5824 7.15k, Application Information Section Application Information Section Typical Values CDELAY RPULL 4.7k
FIGURE Standard Test Circuits Layout Guides COUT
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LM2599
LM2599
VOUT (3.3V5V 12V) VIN(Max) ILOAD(Max) (L1) Figure Figure Figure (3.3V5V VIN(Max) ILOAD(Max) (LXX) Figure (COUT) ESR( Figure Switchers Made Simple® (Version VOUT VIN(Max) ILOAD(Max) (L1) Figure Figure Figure (COUT) Figure
7.5V 225m (Figure (ESR
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LM2599
LM2599
(D1) LM2599 1.25 LM2599 50ns 1N5400 (CIN) (CIN) 18V(1.5 VIN) Figure 1.5A Figure 1.5A F/35V Sprague 593D (D1) Figure 5A20V 1N5823
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LM2599
LM2599
Conditions Output Voltage Load Current Input Voltage Inductor Inductance Inductor Panasonic Series (F/V) 470/25 560/35 680/35 560/35 470/25 330/35 330/35 470/25 560/25 330/35 330/35 470/25 180/35 180/35 470/25 330/25 180/25 180/35 330/25 180/25 82/25 Output Capacitor Through Hole Electrolytic Nichicon Series (F/V) 560/16 560/35 680/35 470/35 470/35 330/35 270/50 560/16 560/25 330/35 270/35 560/16 180/35 180/35 470/25 330/25 180/25 180/35 330/25 180/25 82/25 Surface Mount Tantalum Series (F/V) 330/6.3 330/6.3 330/6.3 330/6.3 330/6.3 330/6.3 220/10 220/10 220/10 220/10 220/10 220/10 100/10 100/10 100/16 100/16 100/16 100/16 100/16 100/16 68/20 Sprague 595D Series (F/V) 390/6.3 390/6.3 390/6.3 390/6.3 390/6.3 390/6.3 330/10 330/10 330/10 330/10 330/10 330/10 270/10 270/10 180/16 180/16 120/20 120/20 180/16 120/20 68/25
FIGURE LM2599 Fixed Voltage Quick Design Component Selection Table
LM2599
VOUT VIN(Max) ILOAD(Max) (150kHz Figure VOUT VIN(Max) ILOAD(Max) (150kHz Figure
115.4k R21k(16.26-1)15.26k 1.5k 15.4k
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LM2599
LM2599
(L1) (L1)
1.16VVD VSAT 0.5V Figure (LXX) Figure (COUT) Figure 34.2 ILOAD(Max) Figure 34(V Figure (COUT) COUT Figure F/35V F/35V 100kHz ESR) (CFF) (Figure (CFF) Figure 100pF 33nF 560pF
(Z5U
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LM2599
LM2599
(D1) LM2599 1.25 LM2599 50ns 1N4001 (CIN) Figure (CIN) 42V(1.5 VIN) (1.5 VIN) (D1) Figure 3A40V 1N5825
1.5A Figure 1.5A F/50V Sprague 593D SIMPLE SWITCHER Switchers Made Simple (Version (3.5
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LM2599
LM2599
Output Voltage Through Hole Output Capacitor Panasonic Series (F/V) 820/35 560/35 470/25 330/25 330/25 220/35 220/35 100/50 Nichicon Series (F/V) 820/35 470/35 470/25 330/25 330/25 220/35 150/35 100/50 Feedforward Capacitor Surface Mount Output Capacitor Series (F/V) 330/6.3 330/6.3 220/10 100/16 100/16 68/20 33/25 10/35 Sprague 595D Series (F/V) 470/4 390/6.3 330/10 180/16 180/16 120/20 33/25 15/50 Feedforward Capacitor
FIGURE Output Capacitor Feedforward Capacitor Selection Table
LM2599
FIGURE LM2599-3.3
FIGURE LM2599-12
FIGURE LM2599-5.0
FIGURE LM2599-ADJ
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LM2599
LM2599
Inductance Current Schott Through Hole 0.99 0.99 1.17 1.40 1.70 0.80 1.00 1.20 1.47 1.78 1.70 Surface Mount Renco Through Hole RL-1284-22-43 RL-5471-5 RL-5471-6 RL-5471-7 RL-1283-22-43 RL-1283-15-43 RL-5471-1 RL-5471-2 RL-5471-3 RL-5471-4 RL-5471-5 RL-5471-6 RL-5471-7 RL-1283-22-43 RL-1283-15-43 RL-5473-1 RL-5473-4 RL-5472-1 RL-5472-2 RL-5472-3 RL-5472-4 RL-5472-5 RL-5473-4 RL-5473-2 RL-5473-3 Surface Mount Pulse Engineering Through Hole Surface Mount PE-53815-S PE-53821-S PE-53822-S PE-53823-S PE-53825-S PE-53824-S PE-53826-S PE-53827-S PE-53828-S PE-53829-S PE-53830-S PE-53831-S PE-53932-S PE-53933-S PE-53934-S PE-53935-S PE-54036-S PE-54037-S PE-54038-S PE-54039-S PE-54040-S PE-54041-S PE-54042-S Coilcraft Surface Mount DO3308-223 DO3316-683 DO3316-473 DO3316-333 DO3316-223 DO3316-153 DOS022P-334 DOS022P-224 DOS022P-154 DOS022P-104 DOS022P-683 DOS022P-473 DOS022P-333 DOS022P-223 DOS022P-153
67148350 67148460 67144070 67144450 67144080 67144460 67144090 67144470 67148370 67148480 67148380 67148490 67144100 67144480 67144110 67144490 67144120 67144500 67144130 67144510 67144140 67144520 67144150 67144530 67144160 67144540 67148390 67148500 67148400 67148790 67144170 67144180 67144190 67144200 67144210
RL1500-22 PE-53815 RL1500-68 PE-53821 PE-53822 PE-53823 PE-53824 PE-53825 PE-53826 PE-53827 PE-53828 PE-53829 PE-53830 PE-53831 PE-53932 PE-53933 PE-53934 PE-53935 PE-54036 PE-54037 PE-54038 PE-54039 PE-54040 PE-54041 PE-54042 PE-54043 PE-54044
67144220 67148290 67144230 67148300 67148410 67144240 67144250
FIGURE Inductor Manufacturers Part Numbers
Coilcraft Inc.
Phone
(800) 322-2645 (708) 639-1469 1236 1236 (619) 674-8100 (619) 674-8262 (800) 645-5828 (516) 586-5562 (612) 475-1173 (612) 475-1786
Coilcraft Inc., Europe
Phone
Pulse Engineering Inc.
Phone
Pulse Engineering Inc., Europe Renco Electronics Inc.
Phone Phone
Schott Corp.
Phone
FIGURE Inductor Manufacturers Phone Numbers
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LM2599
LM2599
Nichicon Corp. Phone Panasonic Phone Corp. Phone Sprague/Vishay Phone (708) 843-7500 (708) 843-2798 (714) 373-7857 (714) 373-7102 (803) 448-9411 (803) 448-1943 (207) 324-4140 (207) 324-7223
FIGURE Capacitor Manufacturers Phone Numbers
Diodes Surface Mount Schottky Ultra Fast Recovery SK32 these diodes 30WQ03 SK33 rated least 50V. SK34 MBRS340 30WQ04 more SK35 MBRS360 30WQ05 MURS320 30WF10 1N5820 SR302 MBR320 1N5821 MBR330 31DQ03 1N5822 SR304 MBR340 31DQ04 SR305 MBR350 31DQ05 FIGURE Diode Selection Table 50WQ05 MUR320 Through Hole Schottky Ultra Fast Recovery these diodes rated least 50V. 50WQ04 50WQ03
Diodes Surface Mount Schottky Ultra Fast Recovery these diodes rated least 50V. SR503 1N5824 SB530 SR504 1N5825 MURS620 50WF10 SB550 50SQ080 SB540 MUR620 HER601 SR502 1N5823 SB520 Through Hole Schottky Ultra Fast Recovery these diodes rated least 50V.
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LM2599
FIGURE
VSAT) 0.5V VOUT/VIN VOUT
(Figure SD/SS 1.3V SD/SS 1.3V 1.8V 1.3V SD/SS 1.8V 2.8V SD/SS 2.8V
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LM2599
Figure Note: Figure SD/SS 2.8V LM2599 SD/SS SD/SS 4.5V 3.7V Figure
FIGURE Soft-start, Delay, Error, Output
FIGURE Timing Diagram Output
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LM2599
FIGURE External 3.7V Soft-Start Clamp
CDELAY Figure Figure 1.3V 1000 50ms RPull
Figure
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LM2599
COUT 100kHz (ESR) (15mV (Figure Figure Figure Figure
FIGURE Current Ratings Electrolytic Capacitors (Typical)
FIGURE Capacitor Capacitor Voltage Rating (Typical Electrolytic Capacitor) 1.25 Figure "PL"
LM2599 50ns 1N5400
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LM2599
FIGURE Capacitor Change Temperature
FIGURE (IIND) Peak-to-Peak Inductor Ripple Current Percentage Load Current) Load Current (EMI) Schott Renco Coilcraft Pulse Engineering LM2599
LM2599( (Figure Figure (Figure
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LM2599
Switchers Made Simple (version 4.3)
FIGURE Peak-to-Peak Inductor Ripple Current Load Current (IIND) IIND Figure Figure Figure IIND (IIND)
FIGURE Post Ripple Filter Waveform
(20mV (Figure Figure
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LM2599
VOUT 5V2.5A 12V10V Figure 2.5A (IIND) Figure 2.5A (IIND) 620mA p-p) Figure 2.5A (IIND) 620mA (16V 740mA (10V 500mA IIND
(IIND) (COUT ESR) 0.62A
LM2599 TO-220(T) TO-263(S) TO-220 Figure LM2599T LM2599T(TO-220 TO-263
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LM2599
Figure LM2599S(TO-263)
Circuit Data Temperature Rise Curve TO-263 Package Capacitors Inductor Diode board Surface mount tantalum, molded "D"size Surface mount, Pulse engineering, Surface mount, 40V, Schottky square inches single sided copper (0.0028
FIGURE Junction Temperature Rise, TO-263 Circuit Data Temperature Rise Curve TO-220 Package Capacitors Inductor Diode board Through hole electrolytic Through hole Renco Through hole, 40V, Schottky square inches single sided copper (0.0028
FIGURE Junction Temperature Rise, TO-220
Figure 12V1A 0.068 Figure Figure 2.6A 650mA
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LM2599
FIGURE Output Voltage, Input Current, Start-Up, WITH Soft-start
FIGURE Output Voltage, Input Current, Start-Up, WITHOUT Soft-start
FIGURE Typical Circuit Using Shutdown /Soft-start Error Flag Features
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LM2599
FIGURE Inverting Regulator With Shutdown Soft-start
Figure LM2599-5 Figure LM2599
1N5400 H3.5A Figure LM2599 4.5A) Figure Figure
Inverting Regulator
Figure Figure Figure )Figure
FIGURE Maximum Load Current Inverting Regulator Circuit
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LM2599
1.5V
FIGURE Undervoltage Lockout Without Hysteresis Inverting Regulator
FIGURE Undervoltage Lockout Buck Regulator Figure Figure Figure Figure SD/SS
FIGURE Undervoltage Lockout With Hysteresis Inverting Regulator
Figure 600mA 1.2A LM2599 4.5A) Simple Switcher
FIGURE Charge Pump Generating Current, Negative Output Voltage
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LM2599
TYPICAL THROUGH HOLE BOARD LAYOUT, FIXED OUTPUT SIZE), DOUBLE SIDED
CIN: COUT:
50V, Aluminum Electrolytic Panasonic, "HFQ Series" 35V, Aluminum Electrolytic Panasonic, "HFQ Series" Schottky Rectifier, 1N5825 L39, Renco, Through Hole
RPULL CDELAY: CSD/SS: Thermalloy Heat Sink #7020
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LM2599
TYPICAL THROUGH HOLE BOARD LAYOUT, ADJUSTABLE OUTPUT SIZE), DOUBLE SIDED
CIN:
50V, Aluminum Electrolytic Panasonic, "HFQ Series"
COUT: Aluminum Electrolytic Panasonic, "HFQ Series" Schottky Rectifier, 1N5825 L39, Renco, Through Hole CFF: RFF: formula Design Procedure Figure Application Information Section (CFF Section)
RPULL CDELAY: CSD/SS:
Thermalloy Heat Sink #7020
FIGURE Board Layout
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LM2599
inches (millimeters)
7-Lead TO-220 Bent Staggered Package Order Number LM2599T-3.3, LM2599T-5.0, LM2599T-12 LM2599T-ADJ Package Number TA07B
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LM2599 SIMPLE SWITCHER® 150kHz
inches (millimeters)
7-Lead TO-263 Bent Formed Package Order Number LM2599S-3.3, LM2599S-5.0, LM2599S-12 LM2599S-ADJ Package Number TS7B
135-0042 2-17-16 TEL.(03)5639-7300
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0120-666-116
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