参数资料
型号: IR3822MTR1PBF
厂商: International Rectifier
文件页数: 5/21页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 4A QFN
产品培训模块: SupIRBuck? Family and POL Design Tools Overview
标准包装: 750
系列: SupIRBuck™
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.6 V ~ 12 V
输入电压: 2.5 V ~ 21 V
PWM 型: 电压模式
频率 - 开关: 600kHz
电流 - 输出: 4A
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: 15-PowerVQFN
包装: 带卷 (TR)
供应商设备封装: PQFN(5x6)
PD-60333
IR3822MPBF
Recommended Operating Conditions
Symbol
V in
V cc
V c
V o
I o Note1
Definition
Input Voltage
Supply Voltage
Supply Voltage
Output Voltage
Output Current
Min
2.5
4.5
Vin + 5V
0.6
0
Max
21
14
28
12
4
Units
V
A
T j
Junction Temperature
-40
125
o
C
Electrical Specifications
Unless otherwise specified, these specification apply over Vin=V cc =V c =12V, 0 o C<T j (Ic)<105 o C.
Typical values are specified at T a = 25 o C.
Parameter
Symbol
Test Condition
Min
TYP
MAX
Units
Power Loss
Power Loss
P loss
Vcc=V in =12V, Vc=24V, V o =1.8V,
I o =4A, L=1.5uH, Note3
1.5
W
MOSFET R ds(on)
I D =6A, Tj(MOSFET)=25 C
I D =6A, Tj(MOSFET)=25 C
Top Switch
Bottom Switch
R ds(on)_Top
R ds(on)_Bot
o
o
18
18
23
23
m Ω
Reference Voltage
Feedback Voltage
V FB
0.6
V
0 C<Tj<105 C
-40 C<Tj<105 C, Note2
Accuracy
o o
o o
-1.35
-1.5
+1.35
+1.5
%
%
Supply Current
V CC Supply Current (Static)
V C Supply Current
I CC(Static)
I C(Static)
SS=0V, No Switching
SS=0V, No Switching
10
4.5
13
7
(Static)
V CC Supply Current
I CC(Dynamic)
SS=3V, V c =24V, V cc =V in =12V.
15
22
mA
(Dynamic)
V o =1.8V, Io=0A
V C Supply Current
I C(Dynamic)
SS=3V, V c =24V, V cc =V in =12V.
15
22
(Dynamic)
Under Voltage Lockout
V o =1.8V, Io=0A
V CC -Start-Threshold
V CC -Stop-Threshold
V CC _UVLO(R)
V CC _UVLO(F)
Supply ramping up
Supply ramping down
4.0
3.7
4.4
4.1
V CC -Hysteresis
Supply ramping up and down
0.15
0.25
0.3
V C -Start-Threshold
V C -Stop-Threshold
V C -Hysteresis
V C _UVLO(R)
V C _UVLO(F)
Supply ramping up
Supply ramping down
Supply ramping up and down
3.1
2.85
0.15
0.2
3.5
3.25
0.25
V
11/04/08
5
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