参数资料
| 型号： | SC4518HSETRT |
| 厂商： | Semtech |
| 文件页数： | 2/15页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK 2A 8-SOIC |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出数： | 1 |
| 输入电压： | 4.4 V ~ 24 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 600kHz |
| 电流 - 输出： | 2A |
| 同步整流器： | 无 |
| 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 宽） |
| 包装： | 标准包装 |
| 供应商设备封装： | 8-SO 裸露焊盘 |
| 产品目录页面： | 1358 (CN2011-ZH PDF) |
| 其它名称： | SC4518HSEDKR |
SC4518H
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. Exposure to Absolute Maximum rated conditions for extended periods of time may
affect device reliability.
P a r a m e t e r
S y m b o l
L i m i t s
U n i t s
I n p u t S u p p l y V o l t a g e
V I N
- 0 . 3 t o + 2 8
( 1 )
V
B o o s t P i n A b o v e V S W
B o o s t P i n V o l t a g e
E N P i n V o l t a g e
F B P i n V o l t a g e
F B P i n C u r r e n t
S Y N C P i n C u r r e n t
T h e r m a l I m p e d a n c e J u n c t i o n t o A m b i e n t
O p e r a t i n g A m b i e n t T e m p e r a t u r e R a n g e
M a x i m u m J u n c t i o n T e m p e r a t u r 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 e c
E S D R a t i n g ( H u m a n B o d y M o d e l )
( V B S T - V S W )
V B S T
V E N
V F B
I F B
I S Y N C
θ J A
T A
T J
T S T G
T L E A D
E S D
1 6
- 0 . 3 t o + 3 2
- 0 . 3 t o + 2 4
- 0 . 3 t o + 6
1
1
3 6 . 5 ( 2 )
- 4 0 t o + 8 5
+ 1 5 0
- 6 5 t o + 1 5 0
3 0 0
2
V
V
V
V
m A
m A
° C / W
° C
° C
° C
° C
k V
Notes:
(1) For proper operation of device, V IN should be within maximum Operating Input Voltage as defined in Electrical
Characteristics.
(2) Minimum pad size.
Electrical Characteristics
Unless specified: V IN = 12V, V COMP = 0.8V, V BST = V IN + 5V, EN = tied to V IN , SYNC = 0, SW = open.
T A = T J = -40°C to 125°C.
P a r a m e t e r
S y m b o l
C o n d i t i o n s
M i n
T y p
M a x
U n i t s
O p e r a t i n g I n p u t V o l t a g e
V I N
2 4 ( 1 )
V
M a x i m u m S w i t c h C u r r e n t L i m i t
I S W
T A = 2 5 ° C , D = 5 0 %
2 . 0
3 . 0
A
O s c i l l a t o r F r e q u e n c y
S w i t c h O n V o l t a g e D r o p
V I N U n d e r v o l t a g e L o c k o u t
f O S C
V D ( S W )
V U V L O
I S W = 2 A
5 0 0
6 0 0
3 3 0
3 . 9
7 0 0
4 . 4
k H z
m V
V
V I N U V L O H y s t e r e s i s
6 0
m V
V I N S u p p l y C u r r e n t
S t a n d b y C u r r e n t
I Q
I Q ( O F F )
V F B = 1 V
V E N = 0 V
3
1 0 0
5
1 5 0
m A
μ A
? 2007 Semtech Corp.
2
www.semtech.com
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