参数资料
型号: SP7662ER-L
厂商: Exar Corporation
文件页数: 3/19页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 12A 26DFN
标准包装: 500
系列: Power Blox™
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.8 V ~ 20.2 V
输入电压: 5 V ~ 22 V
PWM 型: 电压模式
频率 - 开关: 300kHz
电流 - 输出: 12A
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 26-VFDFN 裸露焊盘
包装: 散装
供应商设备封装: 26-DFN(7x4)
其它名称: 1016-1677
SP7662ER-L-ND
S P 7 6 6 2
P o w e r b l o x T M
1 2 A 3 0 0 K H z S y n c h r o n o u s S t e p D o w n R e g u l a t o r
Parameter
Min.
Typ.
Max.
Units
Conditions
VCC Linear Regulator
VCC output Voltage
Dropout Voltage
4.7
4.51
250
5.0
4.73
500
5.3
750
V
mV
?
?
?
V IN =6 to 22V, I LOAD =0mA to 30mA
V IN =5V, I LOAD =20mA
V IN -V OUT =Dropout voltage when V CC
regulated drops by 2%, IV CC =30mA
Control Loop
Ramp Amplitude
RAMP Offset
0.80
1.7
1.00
2.0
1.20
2.3
V
V
?
?
Ramp offset Temperature
Coefficient
-2
mV/°C
GH Minimum Pulse Width
50
180
?
Maximum Controllable Duty
Ratio
92
97
%
?
Maximum Duty Ratio
100
%
?
Valid for 20 cycles
Oscillator Frequency
255
300
345
KHz
?
Soft-start, Short Circuit, Current Limit and Thermal Protection
SS Charge Current
-16
-10
-4
μA
?
SS Discharge Current
Short Circuit Threshold Voltage
Hiccup Timeout
Overcurrent Threshold Voltage
1.0
0.2
170
54
2.0
0.25
220
60
3.0
0.3
270
66
mA
V
ms
mV
?
?
?
Fault Present, SS=0.2V
V FB =0.5V
Measured ISP - ISN
ISP, ISN Common Mode Range
0
3.6
V
Thermal Shutdown Temperature
Thermal Hysteresis
135
145
10
155
°C
°C
Guaranteed by design
Thermal recovery on decreasing
temperature
Output Power Stage
High Side Switch RDSON
Synchronous Low Side Switch
R DSON
Maximum Output Current
? 2012 Exar Corporation
12
21
9
25
15
3/19
m ?
m ?
A
?
V GS =4.5V, I DRAIN =5A, T A =25°C
V GS =4.5V, I DRAIN =5A, T A =25°C
Rev. 2.1.0
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