参数资料
型号: IR3856MTR1PBF
厂商: International Rectifier
文件页数: 5/35页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 6A PQFN15
产品培训模块: SupIRBuck? Family and POL Design Tools Overview
标准包装: 1
系列: SupIRBuck™
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.7 V ~ 18.9 V
输入电压: 1.5 V ~ 21 V
PWM 型: 电压模式
频率 - 开关: 225kHz ~ 1.65MHz
电流 - 输出: 6A
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: 17-PowerVQFN
包装: 标准包装
供应商设备封装: 17-PQFN(5x6)
其它名称: IR3856MTR1PBFDKR
PD-97528
IR3856MPbF
Recommended Operating Conditions
C
Symbol
V in
V cc
Boot to SW
V o
I o
Fs
T j
Definition
Input Voltage
Supply Voltage
Supply Voltage
Output Voltage
Output Current
Switching Frequency
Junction Temperature
Min
1.5
4.5
4.5
0.7
0
225
-40
Max
21*
5.5
5.5
0.9*Vin
6
1650
125
Units
V
A
kHz
o
* Note: SW node should not exceed 25V
Electrical Specifications
Unless otherwise specified, these specification apply over 4.5V< V cc <5.5V, V in =12V, 0 o C<T j < 125 o C.
Typical values are specified at T a = 25 o C.
PARAMETER
SYMBOL
TEST CONDITION
MIN
TYP
MAX
UNIT
POWER STAGE
Power Losses
P loss
Vcc=5V, V in =12V, V o =1.8V,
I o =6A, Fs=600kHz, L=1.0uH,
Note4
1.11
W
V cc =5V, I D =6A, T j =25 C
Top Switch
Bottom Switch
R ds(on)_Top
R ds(on)_Bot
V B oot -V sw =5V, I D =6A, Tj=25 o C
o
22
13.4
29
19
m Ω
Deadband Time
Bootstrap Diode Forward
T db
Note4
I(Boot)= 30mA
5
180
10
260
30
470
ns
mV
Voltage
SW leakage Current
Isw
SW=0V, Enable=0V
SUPPLY CURRENT
SW=0V, Enable=high, SS=3V,
Vseq=0V, Note4
6
uA
V CC
Supply Current (Standby)
I CC(Standby)
SS=0V, Vcc=5V, Enable low ,
No Switching
500
uA
V CC Supply Current (Dyn)
I CC(Dy n)
SS=3V, Vcc=5V, Enable high,
Fs=500kHz
9.25
mA
REFERENCE VOLTAGE
0 C<Tj<125 C
Feedback Voltage
Accuracy
VFB
o o
-1.0
0.7
+1.0
V
-40 C<Tj<125 C, Note3
o o
-2.0
-2.0
%
SOFT START / SD
Soft Start Current
Soft Start Clamp Voltage
ISS
Vss(clamp)
Source
14
2.7
20
3.0
26
3.3
uA
Shutdown Output Threshold
Rev 4.0
SD
0.3
V
5
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