參數(shù)資料
型號(hào): ISL6232CAZA
廠商: INTERSIL CORP
元件分類: 穩(wěn)壓器
英文描述: High Efficiency System Power Supply Controller for Notebook Computers
中文描述: 2 A DUAL SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO28
封裝: ROHS COMPLIANT, PLASTIC, QSOP-28
文件頁(yè)數(shù): 12/25頁(yè)
文件大小: 746K
代理商: ISL6232CAZA
12
FN9116.0
April 18, 2005
Typical Operating Performance
Typical Application Circuits
The typical application circuits shown in Figure 28 and
Figure 29 generate 5V/5A and 3.3V/5A for system power
supplies in a notebook computer.
LDO5
BOOT5
UGATE5
PHASE5
LGATE5
PGND
CS5
OUT5
FB5
COMP5
REF
PGOOD
EN5
LDO3
VIN
BOOT3
UGATE3
PHASE3
LGATE3
CS3
OUT3
GND
FB3
COMP3
SKIP#
EN3
SHDN#
5V/5A
3.3V/5A
L1: 6.8 μH
IRF7811AV
L2: 4.7μF
Q3
IRF7807V
Q4
IRF7811AV
10μF
5V ALWAYS ON
180μF
12mW
6.3V
C3
270pF
0.1μF
R1: 8m
,1%
390k
390k
270pF
4.7μF
0.22μF
0.1μF
10μF
220μF
12mW
4.0V
VCC
C13
0.1μF
VCC
4.7μF
3.3V ALWAYS ON
R2: 8m
R4
100k
ISL6232
VCC
ON
OFF
VCC
VIN: 5.5V to 25V
OUT5
OUT3
Q1
IRF7807V
Q2
C1
C2
C4
R3
R5
C5
C6
C7
C9
C10
C11
C12
,1%
FIGURE 28. ISL6232 TYPICAL APPLICATION CIRCUIT WITH ACCURATE CURRENT SENSING
ISL6232
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