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pwm/vfm step-down dc/dc converter controller 1 no. ea-065-0204 outline

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r1223n 2 block diagram pwm/vfm control soft start chip enable osc vref protection v in v out ce gnd ext selection guide &
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r1223n 6 test circuits a) sd c l pmos v in c in 5 l oscilloscope 1 3 4 2 v e) v in 5 1 3 4 2 a b) c in v in 5 1 3 4 2 a f) sd c l pmos v in c in 5 l oscilloscope 1 3 4 2 v c) v in 5 1 3 4 2 a g) v in v out 5 1 3 4 2 oscilloscope d) v in v out v ext 5 1 3 4 2 a " "! % ! # !, ?" 4'4'4'c4'84'h4'i4 !. ?" f4
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r1223n 12 typical characteristics 1) output voltage vs. output current l=27 h 3.200 3.220 3.240 3.260 3.280 3.300 3.320 3.340 3.360 3.380 3.400 output current i out (a) 12v 8v 4.5v 1e-05 0.0001 0.001 0.01 0.1 1 output voltage v out (v) r1223n332h l=27 h 1.470 1.480 1.490 1.500 1.510 1.520 1.530 output current i out (a) 13.2v 8v 5v 2.3v 1e-05 0.0001 0.001 0.01 0.1 1 output voltage v out (v) r1223n152h 2) efficiency vs. output current cd104-27 h si3443dv 0 10 20 30 40 50 60 70 80 90 100 output current i out (ma) 0.1 1 10 100 1000 efficiency (%) r1223n332a(v in =4.5v) cd104-27 h si3443dv 0 10 20 30 40 50 60 70 80 90 100 output current i out (ma) 0.1 1 10 100 1000 efficiency (%) r1223n332a(v in =12v) cd104-27 h si3443dv 0 10 20 30 40 50 60 70 80 90 100 output current i out (ma) 0.1 1 10 100 1000 efficiency (%) r1223n332b(v in =4.5v) cd104-27 h si3443dv 0 10 20 30 40 50 60 70 80 90 100 output current i out (ma) 0.1 1 10 100 1000 efficiency (%) r1223n332b(v in =12v)
r1223n 13 cd104-27 h si3443dv 0 10 20 30 40 50 60 70 80 90 100 output current i out (ma) 0.1 1 10 100 1000 efficiency (%) r1223n332c(v in =4.5v) cd104-27 h si3443dv 0 10 20 30 40 50 60 70 80 90 100 output current i out (ma) 0.1 1 10 100 1000 efficiency (%) r1223n332c(v in =12v) 0 10 20 30 40 50 60 70 80 90 100 output current i out (ma) 0.1 1 10 100 1000 efficiency (%) r1223n502a(v in =6.0v) cd104-27 h si3443dv cd104-27 h si3443dv 0 10 20 30 40 50 60 70 80 90 100 output current i out (ma) 0.1 1 10 100 1000 efficiency (%) r1223n502a(v in =12v) cd104-27 h si3443dv 0 10 20 30 40 50 60 70 80 90 100 output current i out (ma) 0.1 1 10 100 1000 efficiency (%) r1223n502b(v in =6.0v) cd104-27 h si3443dv 0 10 20 30 40 50 60 70 80 90 100 output current i out (ma) 0.1 1 10 100 1000 efficiency (%) r1223n502b(v in =12v)
r1223n 14 cd104-27 h si3443dv 0 10 20 30 40 50 60 70 80 90 100 output current i out (ma) 0.1 1 10 100 1000 efficiency (%) r1223n502c(v in =6.0v) cd104-27 h si3443dv 0 10 20 30 40 50 60 70 80 90 100 output current i out (ma) 0.1 1 10 100 1000 efficiency (%) r1223n502c(v in =12v) 3) ripple voltage vs. output current l=27 h 0 20 40 60 80 100 120 140 160 180 200 output current i out (ma) v in 4.5v v in 8v v in 12v 1 10 100 1000 ripple voltage v rpp (mv) r1223n332a l=27 h 0 20 40 60 80 100 120 140 160 180 200 output current i out (ma) v in 6v v in 8v v in 12v 1 10 100 1000 ripple voltage v rpp (mv) r1223n502a l=27 h 0 20 40 60 80 100 120 140 160 180 200 output current i out (ma) v in 4.5v v in 8v v in 12v 1 10 100 1000 ripple voltage v rpp (mv) r1223n332b l=27 h 0 20 40 60 80 100 120 140 160 180 200 output current i out (ma) v in 6v v in 8v v in 12v 1 10 100 1000 ripple voltage v rpp (mv) r1223n332h
r1223n 15 l=27 h 0 20 40 60 80 100 120 140 160 180 200 output current i out (ma) v in 4.5v v in 8v v in 12v 1 10 100 1000 ripple voltage v rpp (mv) r1223n332c l=27 h 0 20 40 60 80 100 120 140 160 180 200 output current i out (ma) v in 6v v in 8v v in 12v 1 10 100 1000 ripple voltage v rpp (mv) r1223n502c 4) oscillator frequency vs. input voltage l=27 h 0 100 200 300 400 500 600 intput voltage v in (v) 0 5 10 15 oscillator frequency fosc(khz) r1223n152b l=27 h 0 100 200 300 400 500 600 intput voltage v in (v) 0 5 10 15 oscillator frequency fosc(khz) r1223n152a 5) output voltage vs. input voltage l=27 h 1.47 1.48 1.49 1.50 1.51 1.52 1.53 intput voltage v in (v) 0 5 10 15 output voltage v out (v) r1223n152b l=27 h 1.47 1.48 1.49 1.50 1.51 1.52 1.53 intput voltage v in (v) 0 5 10 15 output voltage v out (v) r1223n152a
r1223n 16 l=27 h 3.24 3.26 3.28 3.30 3.32 3.34 3.36 intput voltage vin(v) 0 5 10 15 output voltage v out (v) r1223n332b l=27 h 3.24 3.26 3.28 3.30 3.32 3.34 3.36 intput voltage vin(v) 0 5 10 15 output voltage v out (v) r1223n332a 6) output voltage vs. temperature l=27 h v in =4.5v 3.27 3.28 3.29 3.30 3.31 3.32 3.33 temperature topt ( c) -50 0 50 100 output voltage v out (v) r1223n332h l=27 h v in =2.7v 1.47 1.48 1.49 1.50 1.51 temperature topt ( c) -50 0 50 100 output voltage v out (v) r1223n152b 7) oscillator frequency vs. temperature l=27 h v in =3.7v 240 260 280 300 320 340 360 temperature topt ( c) -50 0 50 100 oscillator frequency fosc(khz) r1223n252a temperature topt ( c) -50 0 50 100 400 450 500 550 600 oscillator frequency fosc(khz) l=27 h v in =4.5v r1223n332b
r1223n 17 8) supply current vs. temperature temperature topt ( c) -50 0 50 100 50 60 70 80 90 100 supply current1( a) r1223n332g v in 15v v in 13.2v v in 8v temperature topt ( c) -50 0 50 100 60 70 80 90 100 110 130 120 140 supply current1( a) r1223n332h v in 15v v in 13.2v v in 8v 9) soft-start time vs. temperature temperature topt ( c) -50 0 50 100 0 2 4 6 8 10 12 14 16 soft-start time (msec) l=27 h v in =3.7v r1223n252a temperature topt ( c) -50 0 50 100 0 2 4 6 8 10 soft-start time (msec) l=27 h v in =4.5v r1223n332b 10) delay time for latch-type protection vs. temperature temperature topt ( c) -50 0 50 100 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 delay time for latch-type protection(msec) v in =3.7v r1223n252a temperature topt ( c) -50 0 50 100 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 delay time for latch-type protection(msec) v in =4.5v r1223n332b
r1223n 18 11) delay time for reset-type protection vs. temperature temperature topt ( c) -50 0 50 100 0 1 2 3 4 5 delay time for reset-type protection(msec) v in =4.5v r1223n332g temperature topt ( c) -50 0 50 100 0 1 2 3 4 5 delay time for reset-type protection(msec) v in =4.5v r1223n332h 12) ext ?h? output current vs. temperature temperature topt ( c) -50 0 50 100 0 2 4 6 8 10 12 14 16 ext"h" output current(ma) r1223n332b 13) ext ? l ? output current vs. temperature temperature topt ( c) -50 0 50 100 0 5 10 15 20 25 30 ext"l" output current(ma) r1223n332b
r1223n 19 14) load transient response time (sec) 0 0.0002 0.0004 0.0006 0.0008 0.001 0.1 500 3 3.1 3.2 3.3 3.4 output voltage v out (v) r1223n332a v in =5v l=27 h output current i out (ma) time (sec) 0 0.05 0.1 0.1 500 3.3 3.4 3.5 3.6 output voltage v out (v) r1223n332a v in =5v l=27 h output current i out (ma) time (sec) 0 0.0002 0.0004 0.0006 0.0008 0.001 0.1 500 3 3.1 3.2 3.3 3.4 output voltage v out (v) r1223n332b v in =5v l=27 h output current i out (ma) time (sec) 0 0.05 0.1 0.1 500 3.3 3.4 3.5 3.6 output voltage v out (v) r1223n332b v in =5v l=27 h output current i out (ma) time (sec) 0 0.0002 0.0004 0.0006 0.0008 0.001 0.1 500 2.8 2.9 3 3.1 3.2 3.3 3.4 output voltage v out (v) r1223n332c v in =5v l=27 h output current i out (ma) time (sec) 0 0.05 0.1 0.1 500 3.2 3.3 3.4 3.5 3.6 output voltage v out (v) r1223n332c v in =5v l=27 h output current i out (ma)
r1223n 20 time (sec) 0 0.0002 0.0004 0.0006 0.0008 0.001 0.1 500 2.9 3 3.1 3.2 3.3 3.4 output voltage v out (v) r1223n332d v in =5v l=27 h output current i out (ma) time (sec) 0 0.05 0.1 0.1 500 3.2 3.3 3.4 3.5 3.6 output voltage v out (v) r1223n332c v in =5v l=27 h output current i out (ma) 15) turn-on waveform time (sec) -0.01 0 0.01 0.02 0 10 0 0.5 1 1.5 2 2.5 3 3.5 output voltage v out (v) r1223n332a(v in =10v,i out =0ma) l=27 h ce voltage(v) time (sec) -0.01 0 0.01 0.02 0 5 0 0.5 1 1.5 2 2.5 3 3.5 output voltage v out (v) r1223n332a(v in =5v,i out =0ma) l=27 h ce voltage(v) time (sec) -0.01 output voltage v out (v) 0 0.01 0.02 0 10 0 0.5 1 1.5 2 2.5 3 3.5 r1223n332b(v in =10v, i out =0ma) l=27 h ce voltage(v) time (sec) -0.01 output voltage v out (v) 0 0.01 0.02 0 5 0 0.5 1 1.5 2 2.5 3 3.5 r1223n332b(v in =5v, i out =0ma) l=27 h ce voltage(v)
r1223n 21 time (sec) -0.01 output voltage v out (v) 0 0.01 0.02 0 10 0 0.5 1 1.5 2 2.5 3 3.5 r1223n332a(v in =10v, i out =100ma) l=27 h ce voltage(v) time (sec) -0.01 output voltage v out (v) 0 0.01 0.02 0 5 0 0.5 1 1.5 2 2.5 3 3.5 r1223n332a(v in =5v, i out =100ma) l=27 h ce voltage(v) time (sec) -0.01 output voltage v out (v) 0 0.01 0.02 0 10 0 0.5 1 1.5 2 2.5 3 3.5 r1223n332b(v in =10v, i out =100ma) l=27 h ce voltage(v) time (sec) -0.01 output voltage v out (v) 0 0.01 0.02 0 5 0 0.5 1 1.5 2 2.5 3 3.5 r1223n332b(v in =5v, i out =100ma) l=27 h ce voltage(v)

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