OM7649SM中文资料
3.5 - 147
3.5
4 11 R0
SURFACE MOUNT POSITIVE 0.5 VOLT, LOW DROPOUT VOLTAGE REGULATOR
FEATURES
?Isolated Hermetic Surface Mount Package ?Similar To Industry Standard LM2940
?Dropout Voltage Typically 0.5 V @ I O = 1 A ?Output Current In Excess Of 1 A ?Reverse Battery Protection ?Internal Short Circuit Protection ?
Available Hi-Rel Screened
DESCRIPTION
These three terminal fixed voltage regulators are designed to provide 1.0A with high efficiency. It has the ability to source 1A of output current with a typical dropout voltage of .5V and a maximum of 1V over the entire temperature range. It is supplied in a hermetic surface mount package and is ideally suited for Hi-Rel applications where small size and high reliability are required.
ABSOLUTE MAXIMUM RATINGS @ 25°C
Input Voltage..............................................26 Vdc Output Voltage ...................................+5V, +12V, +15Vdc Operating Junction Temperature Range...................- 55°C to + 125°C Storage Temperature Range...........................- 65°C to + 150°C Lead Temperature (Soldering 10 Seconds).........................300°C Thermal Resistance:
θJC (Isolated)...........................................4.2°C/W θJA ..................................................42°C/W Maximum Output Current.......................................1.3 A OM7650SM
OM7648SM
OM7649SM
元器件交易网https://www.wendangku.net/doc/706418420.html,
OM7648SM - OM7650SM
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元器件交易网https://www.wendangku.net/doc/706418420.html,
3.5 - 148
3.5 - 149
OM7648SM - OM7650SM
3.5
E L E C T R I C A L C H A R A C T E R I S T I C S , P /N O M 7650S M (15 V o l t s )
-55°C ≤T A ≤125°C , V I N = 20 V , I O = 1 A , C O U T = 22 μF (u n l e s s o t h e r w i s e s p e c i f i e d ).
P a r a m e t e r S y m b o l T e s t C o n d i t i o n s N o t e s M i n .M a x .U n i t
O u t p u t V o l t a g e
V O U T
V I N = 20 V , I O U T =
5 m A
114.5515.45214.2515.75V V I N = 16.75 V , I O U T = 5 m A
114.5515.45214.2515.75V I N = 17 V , I
O U T = 5 m A
114.5515.45214.2515.75V I N = 26 V , I O U T = 5 m A
114.5515.45214.2515.75V I N = 20 V , I O U T = 1 A
114.5515.45214.2515.75V I N = 16.75 V , I O U T = 1 A
114.5515.45214.2515.75V I N = 16.75 V , I O U T = 50 m A
114.5515.45214.2515.75V I N = 20 V , I O U T = 50 m A
114.5515.45214.2515.75
M a x i m u m L i n e T r a n s i e n t V L T V O ≤16 V , R O = 100 , t = 20 m s
1, 240
V
R e v e r s e P o l a r i t y V R I N
R O = 100 1, 2-15V
I n p u t V o l t a g e D C R e v e r s e P o l a r i t y V R I T
R O = 100 , t = 20 m s
1, 2-45V
I n p u t V o l t a g e T r a n s i e n t Q u i e s c e n t C u r r e n t
I Q
V I N
= 20 V , I O U T = 5 m A
115m A 220V I N
= 17 V , I O U T = 5 m A 115220V I N
= 26 V , I O U T = 5 m A 115220V I N = 20 V , I O U T = 1 A 150260L i n e R e g u l a t i o n
V R L N
17 V ≤V I N ≤26 V ,1±95m V
I O U T = 5 m A
2±150L o a d R e g u l a t i o n
V R L D
V I N = 20 V , 50 m A ≤I O U T ≤1 A
1±150m V
2±240D r o p o u t V o l t a g e
V D O
I O U T = 1 A
1.7V
21I O U T = 100 m A
1150m V
2200O u t p u t N o i s e V o l t a g e
V O N
V I N = 20 V , I O = 5 m A ,11000
μV r m s
10 H z - 100 H z O u t p u t I m p e d a n c e
R O V I N = 20 V , I O U T = 100 m A a c 1, 2
1a n d 20 m A d c , f O = 120 H z
S h o r t C i r c u i t C u r r e n t
I O S V I N = 20 V
11.6A
21.3R i p p l e R e j e c t i o n
R R
V I N = 20 V + 1 V r m s ,148d B
I O U T = 5 m A , f = 1 k H z 242
N o t e s :1. T A = 25°C .2. O v e r f u l l o p e r a t i n g t e m p e r a t u r e r a n g e .
M E C H A N I C A L O U T L I N E
元器件交易网https://www.wendangku.net/doc/706418420.html,
TYPICAL APPLICATIONS
OM7648SM - OM7650SM
3.5
0.9
I n o u t - O u t p u t D i f f e r e n t i a l (V )
Output Current (mA)
Dropout Voltage
0.80.70.60.50.40.30.20
0.1 1.0D r o p o u t V o l t a g e (V )
Temperature (°C)
Dropout Voltage vs Temperature
0.90.80.70.60.50.40.30.20.10 5.10O u t p u t V o l t a g e (5V )
-40
Temperature (°C)
Output Voltage vs Temperature
0160
12040
5.085.065.045.025.004.984.964.944.924.90
80Time (μs)
Line Transient Response
O u t p u t V o l t a g e D e v i a t i o n (m V )
I n p u t V o l t a g e C h a n g e (V )
Input Voltage (V)Quiescent Current
50Q u i e s c e n t C u r r e n t (m A )
Temperature (°C)
Quiescent Current 040302010
50Q u i e s c e n t C u r r e n t (m A )
Load Current (A)
Quiescent Current
40302010095R i p p l e R e j e c t i o n (d B )
1
Frequency (Hz)
Ripple Rejection
10100k 10k 100
351k 1M
45556575850.5Time (μs)
Load Transient Response
00.40.30.20.10-0.1-0.2-0.3-0.4-0.51.00.5O u t p u t V o l t a g e D e v i a t i o n (V )
L o a d C u r r e n t C h a n g e (A )
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