參數(shù)資料
型號(hào): NCV8843PWR2G
廠商: ON SEMICONDUCTOR
元件分類: 穩(wěn)壓器
英文描述: 1.5 A, 340 kHz, Buck Regulator with Synchronization Capability
中文描述: 3 A SWITCHING REGULATOR, 374 kHz SWITCHING FREQ-MAX, PDSO16
封裝: LEAD FREE, SOP-16
文件頁(yè)數(shù): 5/15頁(yè)
文件大?。?/td> 193K
代理商: NCV8843PWR2G
NCV8843
http://onsemi.com
5
ELECTRICAL CHARACTERISTICS (continued)
(40
°
C < T
J
< 125
°
C, 4.5 V< V
IN
< 40
V; unless otherwise specified.)
Characteristic
Unit
Max
Typ
Min
Test Conditions
General
Quiescent Current
I
SW
= 0 A
4.0
7.5
mA
Shutdown Quiescent Current
V
SHDNB
= 0 V
1.0
5.0
A
Boost Operating Current
V
BOOST
V
SW
= 2.5 V
6.0
15
40
mA/A
Minimum Boost Voltage
(Note 4)
2.5
V
Startup Voltage
2.2
3.3
4.4
V
Minimum Output Current
7.0
12
mA
4. Guaranteed by design, not 100% tested in production.
V
IN
GND
V
SW
BOOST
R
S
Q
1.27 V
V
FB
Figure 2. Block Diagram
+
+
+
+
+
+
+
+
Thermal
Shutdown
Oscillator
1.46 V
1.3 V
5.0 A
Artificial
Ramp
Output
Driver
Current
Limit
Comparator
Frequency
and Current
Limit Foldback
0.32 V
PWM
Comparator
I
FOLDBACK
I
REF
Shutdown
Comparator
2.9 V LDO
Voltage
Regulator
SHDNB
SYNC
V
C
Error
Amplifier
SHDNB
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