&0
0LFURSRZHU P$ /RZ 'URSRXW &026 5HJXODWRU
)HDWXUHV
9DULRXV UHJXODWHG RXWSXW YROWDJHV
8OWUD ORZ QRLVH µ9 W\S
'HOLYHUV XS WR P$ RXWSXW FXUUHQW
9HU\ ORZ GURSRXW P9 DW P$
/RZ TXLHVFHQW RSHUDWLQJ FXUUHQW µ$
³=HUR´ GLVDEOH PRGH FXUUHQW FRQVXPSWLRQ
7KHUPDO RYHUORDG SURWHFWLRQ
)ROGEDFN RYHUORDG FXUUHQW SURWHFWLRQ
& WR & WHPSHUDWXUH RSHUDWLRQ
7LQ\ 627 SDFNDJH
&HOOPRELOH SKRQHV 3'$V 03 SOD\HUV GLJLWDO
FDPHUDV FDPFRUGHUV
&RPSDFW)ODVK PHPRU\ FDUGV
/LWKLXP LRQ EDWWHU\SRZHUHG GHYLFHV
3& &DUGV
3URGXFW 'HVFULSWLRQ
7KH &0 LV D YHU\ ORZ GURSRXW ORZ QRLVH UHJXODWRU
WKDW GHOLYHUV XS WR P$ RI ORDG FXUUHQW DW D IL[HG RXW
SXW YROWDJH
$ GHGLFDWHG FRQWURO LQSXW (1 $FWLYH +LJK SURYLGHV
SRZHUXS VHTXHQFLQJ IOH[LELOLW\ :KHQ WKLV LQSXW LV
WDNHQ ORZ WKH UHJXODWRU LV GLVDEOHG ,Q WKLV VWDWH WKH
VXSSO\ FXUUHQW ZLOO GURS WR QHDU ]HUR $Q LQWHUQDO GLV
FKDUJH 026)(7 UHVLVWDQFH Ω ZLOO IRUFH WKH RXW
SXW WR JURXQG ZKHQHYHU WKH GHYLFH LV GLVDEOHG
$Q RSWLRQDO E\SDVV SLQ LV SURYLGHG IRU IXUWKHU LPSURYH
PHQW RI QRLVH SHUIRUPDQFH DQG WR PD[LPL]H WKH SRZHU
VXSSO\ ULSSOH UHMHFWLRQ
7KH &0 LV IXOO\ SURWHFWHG RIIHULQJ ERWK RYHUORDG
FXUUHQW OLPLWLQJ DQG KLJK WHPSHUDWXUH WKHUPDO VKXW
GRZQ
$YDLODEOH LQ D WLQ\ OHDG 627 SDFNDJH WKH GHYLFH
LV LGHDO IRU VSDFH FULWLFDO DSSOLFDWLRQV
9
9
9
9
9
9
9
$SSOLFDWLRQV
&0 5HJXODWRU )DPLO\
352'8&7
&067
&067
&067
&067
&0 67
&067
&067
287387 92/7$*(
7\SLFDO $SSOLFDWLRQ &LUFXLW
,1
&
,1
*1'
µ
)
(1
%<3
*1'
&
%<3
3
6LPSOLILHG (OHFWULFDO 6FKHPDWLF
,1
287
9
287
&
287
µ
)
287
(1
%<3
9
#
-
*1'
2002 California Micro Devices Corp. All rights reserved.
12/13/02
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L
Tel: 408.263.3214
L
Fax: 408.263.7846
L
www.calmicro.com
1
&0
3$&.$*( 3,1287 ',$*5$0
7RS 9LHZ
,1
*1'
(1
%<3
287
1RWH 7KLV GUDZLQJ LV QRW WR VFDOH
SLQ 627
3,1 '(6&5,37,216
3,1 6
1$0(
,1
'(6&5,37,21
7KH LQSXW SRZHU VXSSO\ IRU WKH UHJXODWRU ,I WKLV LQSXW LV ZLWKLQ D IHZ LQFKHV RI WKH PDLQ VXSSO\ ILOWHU D
FDSDFLWRU PD\ QRW EH QHFHVVDU\ 2WKHUZLVH DQ LQSXW ILOWHU FDSDFLWRU RI DSSUR[LPDWHO\ X) ZLOO HQVXUH
DGHTXDWH ILOWHULQJ
7KH QHJDWLYH UHIHUHQFH IRU DOO YROWDJHV
$ ORJLF LQSXW FRQWURO WR HQDEOH WKH UHJXODWRU RXWSXW :KHQ (1 LV DVVHUWHG ORJLF KLJK LW DOORZV RXWSXW
UHJXODWLRQ WR FRPPHQFH :KHQ (1 LV GHDVVHUWHG ORJLF ORZ WKH UHJXODWRU SDVV WUDQVLVWRU LV IRUFHG
LQWR D KLJK LPSHGDQFH PRGH DQG DQ LQWHUQDO GLVFKDUJH UHVLVWDQFH Ω LV DSSOLHG WR WKH RXWSXW
7KLV SLQ LV FRQQHFWHG WR WKH LQWHUQDO YROWDJH UHIHUHQFH RI WKH UHJXODWRU $Q H[WHUQDO E\SDVV FDSDFLWRU
&
%<3
RI Q) LV UHFRPPHQGHG WR LPSURYH WKH QRLVH SHUIRUPDQFH DQG WR PD[LPL]H WKH SRZHU VXSSO\
ULSSOH UHMHFWLRQ
7KH UHJXODWRU YROWDJH RXWSXW XVHG WR SRZHU WKH ORDG
*1'
(1
%<3
287
2UGHULQJ ,QIRUPDWLRQ
3$57 180%(5,1* ,1)250$7,21
3LQV
1RWH 3DUWV DUH VKLSSHG LQ 7DSH
3DFNDJH
627
627
627
627
627
627
627
2UGHULQJ 3DUW 1XPEHU
&067
&067
&067
&067
&0 67
&067
&067
3DUW 0DUNLQJ
$&
$&
$&
$&
$&
$&
$&
5HHO IRUP XQOHVV RWKHUZLVH VSHFLILHG
2002 California Micro Devices Corp. All rights reserved.
2
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L
Tel: 408.263.3214
L
Fax: 408.263.7846
L
www.calmicro.com
12/13/02
&0
6SHFLILFDWLRQV
$%62/87( 0$;,080 5$7,1*6
3$5$0(7(5
(6' 3URWHFWLRQ +%0
3LQ 9ROWDJHV
,1 SLQ
(1 SLQ
287 SLQ
6WRUDJH 7HPSHUDWXUH 5DQJH
2SHUDWLQJ 7HPSHUDWXUH 5DQJH
$PELHQW
-XQFWLRQ
3RZHU 'LVVLSDWLRQ 1RWHV
5$7,1*
>*1' @ WR > @
>*1' @ WR >9
,1
@
>*1' @ WR >9
,1
@
WR
WR
WR
,QWHUQDOO\ /LPLWHG
81,76
9
9
9
9
&
&
&
:
1RWH 7KH &0 FRQWDLQV D WKHUPDO RYHUORDG FLUFXLW WKDW DXWRPDWLFDOO\ GLVDEOHV WKH GHYLFH WKHUHE\ SUHYHQWLQJ H[FHVVLYH MXQF
WLRQ WHPSHUDWXUH :KHQ WKH 627 SDFNDJH KRXVLQJ WKH GHYLFH LV PRXQWHG RQ D W\SLFDO PXOWLOD\HU ERDUG ZLWK PRGHUDWH
KHDW VSUHDGLQJ FRSSHU DUHD VTXDUH LQFKHV ZLOO DOORZ XS WR : WR EH VDIHO\ GLVVLSDWHG 3OHDVH FRQVXOW ZLWK IDFWRU\
IRU WKHUPDO HYDOXDWLRQ DVVLVWDQFH
1RWH &RQVXOW &$0' 7HFKQLFDO 6XSSRUW IRU SRZHU GLVVLSDWLRQ LQIRUPDWLRQ UHJDUGLQJ WKH &0 SDFNDJHG LQ WKH 627 SDFN
DJH
67$1'$5' 23(5$7,1* &21',7,216
3$5$0(7(5
9
,1
$PELHQW 2SHUDWLQJ 7HPSHUDWXUH 5DQJH
/RDG &XUUHQW
&
287
1RWH
1RWH 6HH $SSOLFDWLRQ ,QIRUPDWLRQ VHFWLRQ IRU D UHFRPPHQGDWLRQ RQ WKH RXWSXW FDSDFLWRU
5$7,1*
WR
WR
WR
2XWSXW 9ROWDJH 'HSHQGHQW
81,76
9
&
P$
µF
2002 California Micro Devices Corp. All rights reserved.
12/13/02
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L
Tel: 408.263.3214
L
Fax: 408.263.7846
L
www.calmicro.com
3
&0
6SHFLILFDWLRQV FRQWLQXHG
(/(&75,&$/ 23(5$7,1* &+$5$&7(5,67,&6
6<0%2/
9
287
9
5 /2$'
9
5 /,1(
,
/,0
,
6&
5
',6&+
,
*1'
3$5$0(7(5
5HJXODWRU 2XWSXW 9ROWDJH
/RDG 5HJXODWLRQ
/LQH 5HJXODWLRQ
2YHUORDG &XUUHQW /LPLW
6KRUW &LUFXLW &XUUHQW /LPLW
'LVFKDUJH 5HVLVWDQFH
*URXQG &XUUHQW
9
287
9
(1 WLHG WR JURXQG 9
,1
9
ZLWK (1 WLHG WR 9
,1
,
/2$'
P$
ZLWK (1 WLHG WR 9
,1
,
/2$'
P$
ZLWK (1 WLHG WR *1' 'LVDEOH 0RGH
5HJXODWRU EHFRPHV HQDEOHG
5HJXODWRU HQWHUV VKXWGRZQ
&21',7,216
P$ ,
/2$'
P$ 6HH 1RWH
P$ ,
/2$'
P$ 7
$
&
9
,1
9
287
9 P$ ,
/2$'
P$
,
/2$'
P$
0,1
ƒ
+] 9
,1
−
9
287
9
,
/2$'
µ$ &
287
µ) &HUDPLF
&
%<3
Q)
+]N+] &
287
&
%<3
Q)
µ) &HUDPLF
7<3
0$;
81,76
9
Ω
P9
P99
P$
P$
Ω
µA
µA
µA
9
9
&
&
G%
5
'523287
'URSRXW 5HVLVWDQFH
9
,+
9
,/
7
',6$%/(
7
+<67
5
5(-
(QDEOH +LJK 7KUHVKROG
(QDEOH /RZ 7KUHVKROG
6KXWGRZQ 7HPSHUDWXUH
7KHUPDO +\VWHUHVLV
5LSSOH 5HMHFWLRQ
(
12,6(
2XWSXW 1RLVH
µ9UPV
1RWH (OHFWULFDO RSHUDWLQJ FKDUDFWHULVWLFV DUH JXDUDQWHHG RYHU VWDQGDUG RSHUDWLQJ FRQGLWLRQV XQOHVV RWKHUZLVH QRWHG
1RWH 5HJXODWRU RXWSXW YROWDJH LQFOXGHV OLQH UHJXODWLRQ ORDG UHJXODWLRQ DQG WHPSHUDWXUH RYHU WKH LQGLFDWHG ORDG FXUUHQW UDQJH
2002 California Micro Devices Corp. All rights reserved.
4
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L
Tel: 408.263.3214
L
Fax: 408.263.7846
L
www.calmicro.com
12/13/02
&0
3HUIRUPDQFH ,QIRUPDWLRQ
7\SLFDO 1RLVH &KDUDFWHULVWLFV
&XUYHV VKRZQ IRU 9 RXWSXW
Power Supply Ripple Rejection
80
RIPPLE REJECTION [dB]
RIPPLE REJECTION [dB]
100uA
Power Supply Ripple Rejection
80
100uA
60
150mA
40
1mA
20
VIN = 3.8V, VOUT = 2.8V
COUT = 1uF Cer.
CBYP = 0.01uF
10
100
1000
10000
60
1mA
40
10mA
20
VIN = 3.8V, VOUT = 2.8V
COUT = 10uF Cer.
CBYP = 0.01uF
10
100
1000
10000
150mA
10mA
0
100000
0
100000
FREQUENCY [Hz]
FREQUENCY [Hz]
Power Supply Ripple Rejection
80
RIPPLE REJECTION [dB]
RIPPLE REJECTION [dB]
Power Supply Ripple Rejection
Vs. Voltage Drop (1kHz)
80
1mA 100uA
60
100uA
40
150mA
1mA
20
VIN = 3.8V, VOUT = 2.8V
COUT = 1uF Cer.
NO BYP CAP
10
100
1000
10000
60
40
10mA
100mA
150mA
10mA
20
0
100000
0
0.00
0.25
0.50
0.75
1.00
1.25
1.50
FREQUENCY [Hz]
DROPOUT VOLTAGE [V]
Noise Performance
Noise Performance
2002 California Micro Devices Corp. All rights reserved.
12/13/02
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L
Tel: 408.263.3214
L
Fax: 408.263.7846
L
www.calmicro.com
5
京公网安备 11010802033920号
EEWORLD
