参数资料
型号: SC2544MLTRT
厂商: Semtech
文件页数: 2/22页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 24-MLPQ
标准包装: 1
PWM 型: 电压模式
输出数: 2
频率 - 最大: 300kHz
占空比: 90%
电源电压: 4.5 V ~ 28 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 24-MLPQ
包装: 标准包装
其它名称: SC2544MLDKR
SC2544
POWER MANAGEMENT
Absolute Maximum Ratings
Exceeding the specifications below may result in permanent damage to the device, or device malfunction.
Operation outside of the parameters specified in the Electrical Characteristics section is not implied.
P a r a m e t e r
B S T 1 , B S T 2 t o P G N D
V I N t o P G N D
I L I M 1 , I L I M 2 a n d E N t o P G N D
V C C a n d P V C C t o P G N D
P G N D t o A G N D
B S T 1 t o P H 1 , B S T 2 t o P H 2 , D R V H 1 t o P H 1 , D R V H 2 t o P H 2
D R V L 1 , D R V L 2 t o P G N D
P H A S E , D R V L t o A G N D p u l s e ( 1 0 0 n S ) , p e a k v o l t a g e
A l l O t h e r P i n s t o A G N D
S y m b o l
V b s t
V i n
M a x i m u m
3 8
2 8
V I N
1 4
+ / - 0 . 3
- 0 . 3 t o 1 4
- 0 . 3 t o V C C
- 3
- 0 . 3 t o V C C
U n i t s
V
V
V
V
V
V
V
V
V
S t o r a g e T e m p e r a t u r e R a n g e
J u n c t i o n T e m p e r a t u r e
T S T G
T J
- 6 0 t o + 1 5 0
- 4 0 t o + 1 5 0
o
o
C
C
L e a d T e m p e r a t u r e ( S o l d e r i n g ) 1 0 S e c f o r T S S O P - 2 4
L e a d T e m p e r a t u r e ( I R R e f l o w ) f o r M L P Q - 2 4
T L E A D
2 6 0
o
C
T h e r m a l R e s i s t a n c e J u n c t i o n t o C a s e
T S S O P - 2 4
M L P - 2 4
T h e r m a l R e s i s t a n c e J u n c t i o n t o A m b i e n t
T S S O P - 2 4
M L P - 2 4
θ J C
θ J A
2 3
2
7 8
2 5
o
o
C / W
C / W
Unless specified: T A = 25 C, V IN =16V, Fs=200KHz .
Note: This device is ESD sensitive. Use of standard ESD handling precautions is required.
Electrical Characteristics
o
P a r a m e t e r
T e s t C o n d i t i o n s
M i n
T y p
M a x
U n i t
U n d e r v o l t a g e L o c k o u t
S t a r t T h r e s h o l d
U V L O H y s t e r e s i s
V c c r i s i n g
V c c f a l l i n g
2 0 0
4 . 5
V
m V
P o w e r S u p p l y
O p e r a t i n g C u r r e n t ( I IN - I P V C C )
V c c R e g u l a t e d
V c c L o a d R e g u l a t i o n L e v e l
V c c L i n e R e g u l a t i o n
P V c c O p e r a t i n g C u r r e n t
D i s a b l e Q u i e s c e n t C u r r e n t
S S 1 / S S 2 / E N = H i g h , F S = 2 0 0 k H z
V I N > 1 2 V
I _ l o a d = 0 ~ 2 0 m A
V i n = 1 2 ~ 2 4 V
2 0 0 K H z , 1 n F o n H G , 1 n F o n L G
E N = l o w
6 . 0
1 0
2
2
1 4
0 . 1
1 0
1 0
m A
V
%
%
m A
u A
M a i n S w i t c h e r o u t p u t
L i n e R e g u l a t i o n
L o a d R e g u l a t i o n
5 V < V i n < 2 8 V
0 A < l o a d c u r r e n t < 1 0 A
0 . 5
0 . 5
%
%
O u t p u t V o l t a g e A c c u r a c y
W i t h o u t f e e d b a c k a t t e n u a t i o n ,
0 . 7 3 5
0 . 7 5 0
0 . 7 6 5
V
T A = - 4 0 o C t o + 8 5 o C
? 2005 Semtech Corp.
2
www.semtech.com
相关PDF资料
PDF描述
GEC30DRTI-S93 CONN EDGECARD 60POS DIP .100 SLD
GBC22DRTI-S93 CONN EDGECARD 44POS DIP .100 SLD
RMM15DRTN-S13 CONN EDGECARD 30POS .156 EXTEND
GEC30DREI-S93 CONN EDGECARD 60POS .100 EYELET
ECC15DREI-S93 CONN EDGECARD 30POS .100 EYELET
相关代理商/技术参数
参数描述
SC2544TSTRT 功能描述:IC REG CTRLR BUCK PWM VM 24TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 特色产品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 标准包装:1 系列:PowerWise® PWM 型:电压模式 输出数:1 频率 - 最大:1MHz 占空比:81% 电源电压:4.5 V ~ 18 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-5°C ~ 125°C 封装/外壳:32-WFQFN 裸露焊盘 包装:Digi-Reel® 产品目录页面:1303 (CN2011-ZH PDF) 其它名称:LM3754SQDKR
SC2545 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:High Performance Wide Input Range Dual Synchronous Buck Controller
SC2545EVB 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:High Performance Wide Input Range Dual Synchronous Buck Controller
SC2545MLTRT 制造商:Semtech Corporation 功能描述:Controller IC
SC2545TSTRT 制造商:Semtech Corporation 功能描述:Controller IC 制造商:Semtech Corporation 功能描述:DC DC Cntrlr Dual-OUT Synchronous Buck Controller/PWM DC to DC Controller 4.5V to 28V Input 24-Pin TSSOP T/R