参数资料
型号: SC470ITSTRT
厂商: Semtech
文件页数: 2/31页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM 14-TSSOP
标准包装: 1
PWM 型: 控制器
输出数: 1
电源电压: 5 V ~ 5.5 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 14-TSSOP(0.173",4.40mm 宽)
包装: 标准包装
产品目录页面: 1358 (CN2011-ZH PDF)
其它名称: SC470ITSDKR
NOT RECOMMENDED FOR NEW DESIGN
SC470
POWER MANAGEMENT
Absolute Maximum Ratings (1)
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. Exposure to Absolute Maximum rated conditions for extended periods of time may
affect device reliability.
P i n C o m b i n a t i o n
T O N t o V S S A
D H , B S T t o P G N D
L X t o P G N D
P G N D t o V S S A
B S T t o L X
D L , I L I M , V D D P t o P G N D
E N / P S V , F B , P G D , V C C A , V O U T t o V S S A
V C C A t o E N / P S V , F B , P G D , V O U T
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 - I T S T R T ( 2 )
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 - I M L T R T ( 2 )
O p e r a t i n g J u n c t i o n T e m p e r a t u r e R a n g e
S t o r a g e T e m p e r a t u r e R a n g e
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 - P a r t N o . I T S T R T
I R R e f l o w ( S o l d e r i n g ) 1 0 s t o 3 0 s - P a r t N o . I M L T R T
S y m b o l
θ J A
θ J A
T J
T S T G
T L E A D
T L E A D
M a x i m u m
- 0 . 3 t o + 2 5 . 0
- 0 . 3 t o + 3 0 . 0
- 2 . 0 t o + 2 5 . 0
- 0 . 3 t o + 0 . 3
- 0 . 3 t o + 6 . 0
- 0 . 3 t o + 6 . 0
- 0 . 3 t o + 6 . 0
- 0 . 3 t o + 6 . 0
1 0 0
3 1
- 4 0 t o + 1 2 5
- 6 5 t o + 1 5 0
3 0 0
2 6 0
U n i t s
V
V
V
V
V
V
V
V
° C / W
° C / W
° C
° C
° C
° C
Notes:
1) This device is ESD sensitive. Use of standard ESD handling precautions is required.
2) Calculated from package in still air, mounted to 3” to 4.5”, 4 layer FR4 PCB with thermal vias under the exposed pad per JESD51 standards.
Electrical Characteristics
Test Conditions: V BAT = 15V, EN/PSV = 5V, VCCA = VDDP = 5.0V, V OUT = 1.25V, R TON = 1M ? , 0.1% Resistor Dividers.
P a r a m e t e r
C o n d i t i o n s
2 5 ° C
- 4 0 ° C t o 1 2 5 ° C
U n i t s
M i n
T y p
M a x
M i n
M a x
I n p u t S u p p l i e s
V C C A I n p u t V o l t a g e
V D D P I n p u t V o l t a g e
5 . 0
5 . 0
4 . 5
4 . 5
5 . 5
5 . 5
V
V
V I N I n p u t V o l t a g e
V D D P O p e r a t i n g C u r r e n t
V C C A O p e r a t i n g C u r r e n t
T O N O p e r a t i n g C u r r e n t
S h u t d o w n C u r r e n t
V I N = 1 . 8 V - 2 5 V , O f f t i m e > 8 0 0 n s
F B > r e g u l a t i o n p o i n t , I L O A D = 0 A
F B > r e g u l a t i o n p o i n t , I L O A D = 0 A
R T O N = 1 M ?
E N / P S V = 0 V
V C C A
V D D P + V I N
1 . 8
7 0
7 0 0
1 5
- 5
5
0
2 5
1 5 0
1 1 0 0
- 1 0
1 0
1
V
μ A
μ A
μ A
μ A
μ A
μ A
? 2005 Semtech Corp.
2
www.semtech.com
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