参数资料
型号: SC4211STRT
厂商: Semtech
文件页数: 3/9页
文件大小: 0K
描述: IC REG LDO FIX/ADJ 1A 8-SOIC
标准包装: 1
稳压器拓扑结构: 正,固定式或可调式
输出电压: 0.5V,1V,可调
输入电压: 1.4 V ~ 6 V
电压 - 压降(标准): 0.2V @ 1A
稳压器数量: 1
电流 - 输出: 1A
电流 - 限制(最小): 1.1A
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm Width)裸露焊盘
供应商设备封装: 8-SOIC-EP
包装: 标准包装
产品目录页面: 1358 (CN2011-ZH PDF)
其它名称: SC4211SDKR
SC4211
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Unless specified: V EN = V IN , V FB = V O, V IN = 1.40V to 6.0V, I O = 10 μ A to 1A.
Values in bold apply over the full operating temperature range.
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
M i n
T y p
M a x
U n i t s
V O ( C o n t . )
D r o p o u t V o l t a g e ( 1 ) ( 2 )
M i n i m u m L o a d C u r r e n t ( 3 )
C u r r e n t L i m i t ( 4 )
V D O
I O
I C L
I O = 1 A
V I N = V O + 0 . 5 V
1 . 1
2 0 0
1 . 5
4 0 0
5 0 0
1 0
2 . 0
m V
μ A
A
F e e d b a c k
R e f e r e n c e V o l t a g e ( 1 )
V R E F
V I N = 3 . 3 V , V F B = V O U T , I O = 1 0 m A
0 . 4 9 5
0 . 5
0 . 5 0 5
V
F u l l I O U T , a n d V I N R a n g e
0 . 4 9 0
0 . 5 1 0
F e e d b a c k P i n C u r r e n t ( 4 )
F e e d b a c k P i n T h r e s h o l d ( 5 )
I A D J
V T H ( F B )
V F B = V R E F
0 . 0 5
8 0
0 . 1 6
2 0 0
0 . 4 0
n A
V
E N
E n a b l e P i n C u r r e n t
E n a b l e P i n T h r e s h o l d
I E N
V I H
V E N = 0 V , V I N = 3 . 3 V
V I N = 3 . 3 V
1 . 6
1 . 5
1 0
μ A
V
O v e r T e m p e r a t u r e P r o t e c t i o n
V I L
V I N = 3 . 3 V
0 . 4
H i g h T r i p l e v e l
H y s t e r e s i s
T H I
T H Y S T
1 6 0
1 0
° C
° C
Notes:
(1)
(2)
(3)
(4)
(5)
Low duty cycle pulse testing with Kelvin connections required.
V DO = V IN -V O when V O decreases by 1.5% of its nominal output voltage with V IN = V O +0.8V.
Required to maintain regulation. Voltage set resistors R1 and R2 are usually utilized to meet this requirement.
Guaranteed by design.
When V FB exceeds this threshold, the “Sense Select” switch disconnects the internal feedback chain from the error
amplifier and connects V FB instead.
? 2007 Semtech Corp.
3
www.semtech.com
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