ap2006 200khz, pwm buck dc/dc & linear controller this datasheet contains new product information. anachip corp. reserves the rights to modify the product specification without notice. no liability is assumed as a result of the use of this product. no rights under any patent accompany the sale of the product. rev.1.0 jun 9, 2004 1/7 ? features - provides two regulated voltages -one pwm controller( drive pmos) -one linear controller (drive npn and nmos) - adjustable version: 0.8 +/- 3% and 1.25+/- 3%. - 250khz + 10% fixed switching frequency - thermal-shutdown and current-limit protection - ss/en soft-start/enable function. - operating voltage can be up to 22v - low power standby mode - pb-free package: sop8,dip8 ? applications - simple high-efficiency step-down regulator - on-card switching regulators - xdsl? ? general descriptions the ap2006 series are monolithic ic?s containing a pwm and a linear power controller. the pwm driving a external pmos. due to the reduced the number of external components, board space can be saved easily. the external shutdown function can be controlled by logic level and switching the ic into standby mode. the internal compensation provides a good line and load regulation without external components. regard the protecting functions: short circuit protect is against over current in the output switch. the ap2006 series operates at a switching frequency of 250khz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. other features include a guaranteed + 3% tolerance on output voltage under specified input voltage and output load conditions, and + 15% on the oscillator frequency. the linear controller is able to drive an external npn transistor, which a current limit set to 30ma pre-driver of ap2006 series. the ics are available in a standard sop8/dip8 package for ap2006. ? pin assignments ap2006a/b 7 5 4 3 2 1 6 fb1 fb2 scp gnd ss/en v cc (top view) out2 8 out1 sop-8/dip-8 ? pin descriptions name description v cc operating voltage input scp short circuit protect out1 connecting pmos?s gate gnd ground fb1 fb2 output voltage feedback control ss/en soft-start/enable function out2 linear controller driving external npn
ap2006 200khz, pwm buck dc/dc & linear controller anachip corp. www.anachip.com.tw rev. 1.0 jun 9, 2004 2/7 ? ordering information package packing s : sop-8l ap2006 x x x blank : tube a : taping n : dip-8l output version a : 1.25v fb b : 0.8v fb ? block diagram current source bias 0.8v reference 2.5v regulator 250khz osc. start up + pre-driver gnd out1 v cc ss/en fb1 + _ _ amp comp fb2 + _ amp current limit buffer out2 lpf lpf en 10 a 1.5v scp + _
ap2006 200khz, pwm buck dc/dc & linear controller anachip corp. www.anachip.com.tw rev. 1.0 jun 9, 2004 3/7 ? absolute maximum ratings symbol parameter rating unit v cc supply voltage 22 v v en en pin input voltage -0.3 Q v Q 22 v v fb feedback pin voltage -0.3 Q v Q 22 v v out1/2 output voltage to ground -0.3 Q v Q 22 v so8 400 p d power dissipation dip8 1000 mw t st storage temperature -65 to 150 o c t op operating temperature -40 to +125 o o c v op operating voltage 4.5 to 20 v ? electrical characteristics (all output voltage versions & channels) unless otherwise specified ap2006, vin=12v for 3.3v, 5v, adjustable version and vin=20v for the 12v version. i load = 0.2a. symbol parameter conditions min. typ. max. unit v cc supply voltage 4.5 - 22 v i b1/2 feedback bias current v fb1/2 =1.3v(fb1,adj version) - 100 1000 na f osc oscillator frequency 210 250 290 khz v sat2 saturation voltage (v cc -v out2 ) i out =20ma(no external npn or n-mos) v fb1 =0v force driver on - 1.2 - v max. duty cycle(on) v fb1 =0v force driver on - 100 - % dc min. duty cycle(off) v fb1 =12v force driver off - 0 - % i q quiescent current (v cc ) v fb1/2 =12v force driver off - 6 - ma low (regulator off) - - 0.2 v il shutdown logic input threshold voltage high (regulator on) 1.0 - - v i l en pin input current v logic =0.5v (regulator off) - 20 - ua i cl2 current limit (out2) v cc =5v, v out2 =v fb2 =0v 25 - - ma ap2006a out1/2 feedback voltage 1.213 1.25 1.287 v fb1/2 ap2006b out1/2 feedback voltage 4.75v < v cc1 < 20v 3.0v < v cc2 < 20v 0.784 0.8 0.816 v v ut upper threshold voltage (v cc ) - 4.3 - v v lwt lower threshold voltage (v cc ) - 4.1 - v v ht hysteresis (v cc ) i o(ref) = 0.1ma t a = 25oc - 200 - mv v it input threshold voltage (scp) t a = 25oc 0.60 0.67 0.75 v v stb standby voltage (scp) no pull up 100 130 160 mv v lt latched input voltage (scp) no pull up - 50 100 mv i scp input (source) current (scp) v i = 0.7v, t a = 25oc -5 -10 -20 a i leak leakage current (out1) fb=12v - - 10 a sink current (out1) v in = 12v - 300 - ma i drv source current (out1) v in = 12v - 200 - ma v sat output saturation voltage (out1) i o = 10 ma - 1.0 1.5 v i sc short-circuit output current (out1) v o = 6v, v fb =12v - 120 - ma v ss soft-start voltage - 2.4 - v i ss constant charge current - 10 - a
ap2006 200khz, pwm buck dc/dc & linear controller anachip corp. www.anachip.com.tw rev. 1.0 jun 9, 2004 4/7 ? typical application circuit (1) v out2 drive npn fb1 gnd scp ss/en fb2 out1 v cc 1 2 3 4 8 5 6 v out2 v cc2 =3.3v r2 100 r1 125 =1.8v 7 out2 100nf 1nf v cc1 v cc1 r4 100 r3 312 47uh v out1 =3.3v pmos schottcky f 470 f 220 f 220 f 220 ap2006b ap2006a => v out1 =1.25*(1+r3/r4) v out2 =1.25*(1+r1/r2) ap2006b=> v out1 =0.8*(1+r3/r4) v out2 =0.8*(1+r1/r2)
ap2006 200khz, pwm buck dc/dc & linear controller anachip corp. www.anachip.com.tw rev. 1.0 jun 9, 2004 5/7 ? typical application circuit (continued) (2) v out2 drive nmos fb1 gnd scp ss/en fb2 out1 v cc 1 2 3 4 8 5 6 v out2 v cc2 =3.3v r2 100 r1 125 =1.8v 7 out2 100nf 1nf v cc1 v cc1 r4 100 r3 312 47uh v out1 =3.3v pmos schottcky f 470 f 220 f 220 f 220 ap2006b nmos 10k ap2006a => v out1 =1.25*(1+r3/r4) v out2 =1.25*(1+r1/r2) ap2006b=> v out1 =0.8*(1+r3/r4) v out2 =0.8*(1+r1/r2)
ap2006 200khz, pwm buck dc/dc & linear controller anachip corp. www.anachip.com.tw rev. 1.0 jun 9, 2004 6/7 ? marking information ( top view ) logo part number id code: internal year: "01" = 2001 "02" = 2002 xth week: 01~52 ~ 1 4 ac ap2006 x yy ww x 5 8 a: 1.25v b: 0.8v ? package information (1) sop-8l view "a" l c view "a" h e a a2 a1 b e d 7 (4x) 0.015x45 7 (4x) y dimensions in millimeters dimensions in inches symbol min. nom. max. min. nom. max. a 1.40 1.60 1.75 0.055 0.063 0.069 a1 0.10 - 0.25 0.040 - 0.100 a2 1.30 1.45 1.50 0.051 0.057 0.059 b 0.33 0.41 0.51 0.013 0.016 0.020 c 0.19 0.20 0.25 0.0075 0.008 0.010 d 4.80 5.05 5.30 0.189 0.199 0.209 e 3.70 3.90 4.10 0.146 0.154 0.161 e - 1.27 - - 0.050 - h 5.79 5.99 6.20 0.228 0.236 0.244 l 0.38 0.71 1.27 0.015 0.028 0.050 y - - 0.10 - - 0.004 0 o - 8 o 0 o - 8 o
ap2006 200khz, pwm buck dc/dc & linear controller anachip corp. www.anachip.com.tw rev. 1.0 jun 9, 2004 7/7 (2) dip-8l e1 d 7 (4x) a l a2 a1 b2 b1 b e s 15 (4x) e c eb e-pin o0.118 inch pin #1 indent o0.025 deep 0.006-0.008 inch dimensions in millimeters dimensions in inches symbol min. nom. max. min. nom. max. a - - 5.33 - - 0.210 a1 0.38 - - 0.015 - - a2 3.1 3.30 3.5 0.122 0.130 0.138 b 0.36 0.46 0.56 0.014 0.018 0.022 b1 1.4 1.52 1.65 0.055 0.060 0.065 b2 0.81 0.99 1.14 0.032 0.039 0.045 c 0.20 0.25 0.36 0.008 0.010 0.014 d 9.02 9.27 9.53 0.355 0.365 0.375 e 7.62 7.94 8.26 0.300 0.313 0.325 e1 6.15 6.35 6.55 0.242 0.250 0.258 e - 2.54 - - 0.100 - l 2.92 3.3 3.81 0.115 0.130 0.150 eb 8.38 8.89 9.40 0.330 0.350 0.370 s 0.71 0.84 0.97 0.028 0.033 0.038
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