參數(shù)資料
型號： MAX1715EEI
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： Ultra-High Efficiency, Dual Step-Down Controller for Notebook Computers
中文描述： DUAL SWITCHING CONTROLLER, 620 kHz SWITCHING FREQ-MAX, PDSO28
封裝： 0.150 INCH, 0.025 INCH PITCH, MO-137AD QSOP-28
文件頁數(shù)： 13/28頁
文件大?。?/td> 308K
代理商： MAX1715EEI
M
Ultra-High Efficiency, Dual Step-Down
Controller for Notebook Computers
______________________________________________________________________________________
13
REF
-6%
FROM
OUT
REF
FROM ZERO-CROSSING COMPARATOR
ERROR
AMP
TOFF
1-SHOT
TON
REF
+12%
REF
-30%
FEEDBACK
MUX
(SEE FIGURE 9)
x2
OVP/UVLO
LATCH
TO DL DRIVER
TO DH DRIVER
ON-TIME
COMPUTE
1-SHOT
FROM ILIM
COMPARATOR
TRIG
IN
2V TO 28V
TRIG
Q
Q
S
R
FB_
OUT_
Q
S1
Q
S2
TIMER
TON
V+
S
R
Q
TO PGOOD
OR GATE
Figure 3. PWM Controller (one side only)
X = Don’t care
ON1
ON2
SKIP
MODE
COMMENTS
0
0
1
X
0
1
0
X
X
X
X
SHUTDOWN
OUT1 Disable Disable OUT1. DL1 = V
DD
. Clears OUT1 fault latches.
OUT2 Disable Disable OUT2. DL2 = V
DD
. Clears OUT2 fault latches.
No Fault
Disables the output overvoltage and undervoltage fault circuitry.
Low-power shutdown state. DL = V
DD
. Clears fault latches.
<-0.3V
1
1
V
DD
RUN (PWM)
Low Noise
Low-Noise operation with no automatic PWM/PFM switchover. Fixed-frequency PWM
action is forced regardless of load. Inductor current reverses at light load levels. I
DD
draw <1.5mA (typ) plus gate-drive current.
Table 3. Operating Mode Truth Table
1
1
AGND
RUN
(PFM/PWM)
Normal operation with automatic PWM/PFM switchover for pulse-skipping at light loads.
I
DD
<1.5mA (typ) plus gate drive current.
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1715EEI+ 功能描述:DC/DC 開關(guān)控制器 Dual Step-Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX1715EEI+T 功能描述:DC/DC 開關(guān)控制器 Dual Step-Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX1715EEI-T 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX1715EVKIT 功能描述:DC/DC 開關(guān)控制器 Evaluation Kit for the MAX1715 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX1716EEG 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
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