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參數(shù)資料
| 型號： | MAX1635EAI |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers |
| 中文描述： | SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | 5.30 MM, 0.65 MM PITCH, SSOP-28 |
| 文件頁數(shù)： | 6/28頁 |
| 文件大小： | 237K |
| 代理商： | MAX1635EAI |
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__________________________________________________________________________Pin Desc ription
M
Multi-Output, Low-Noise Power-S upply
Controllers for Notebook Computers
6
_______________________________________________________________________________________
____________________________________Typic al Operating Charac teristic s (c ontinued)
(Circuit of Figure 1, 3A Table 1 components, T
A
= +25°C, unless otherwise noted.)
1000
0.1
0.1
10
1000
100
SWITCHING FREQUENCY
vs. LOAD CURRENT
10
1
100
M
LOAD CURRENT (mA)
S
1
+5V, V
IN
= 15V
+3.3V, V
IN
= 15V
+3.3V, V
IN
= 6V
+5V, V
IN
= 6V
5.00
4.90
50
60
VL REGULATOR OUTPUT VOLTAGE
vs. OUTPUT CURRENT
4.98
M
OUTPUT CURRENT (mA)
V
0
4.94
4.92
30
40
4.96
10
20
V
IN
= 15V
ON3 = ON5 = 0V
2.510
2.480
2.485
5
6
REF OUTPUT VOLTAGE
vs. OUTPUT CURRENT
2.505
M
OUTPUT CURRENT (mA)
R
0
2.495
2.490
3
4
2.500
1
2
V
= 15V
ON3 = ON5 = 0V
2ms/div
START-UP WAVEFORMS
RUN
5V/div
3.3V OUTPUT
2V/div
TIME
5V/div
5V OUTPUT
5V/div
SEQ= VL, 0.015
μ
F CAPACITOR ON-TIME
M
Feedback Input for the 3.3V SMPS; regulates at FB3 = REF (approx. 2.5V) in adjustable mode. FB3 is a
Dual Mode input that also selects the 3.3V fixed output voltage setting when tied to GND. Connect FB3
to a resistor divider for adjustable-output mode.
FB3
3
12V/120mA Linear Regulator Output. Input supply comes from V
DD
. Bypass 12OUT to GND with
1μF minimum.
12OUT
(MAX1630/
32/33/35)
Current-Sense Input. Also serves as the feedback input in fixed-output mode.
CSL3
2
FUNCTION
NAME
CSH3
PIN
1
Logic-Control Input for secondary feedback. Selects the PWM that uses a transformer and secondary
feedback signal (SECFB):
STEER = GND: 3.3V SMPS uses transformer
STEER = VL: 5V SMPS uses transformer
STEER
(MAX1631/
MAX1634)
Current-Sense Input for the 3.3V SMPS. Current-limit level is 100mV referred to CSL3.
4
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1635EAI+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX1635EAI-T | 功能描述:DC/DC 開關控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 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 安裝風格: 封裝 / 箱體:CPAK |
| MAX1636CPUEVKIT | 制造商:Maxim Integrated Products 功能描述:LOW VOLTAGE, PRECISION STEP DOWN CONTROLLER F - Bulk |
| MAX1636EAP | 功能描述:DC/DC 開關控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 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 安裝風格: 封裝 / 箱體:CPAK |
| MAX1636EAP+ | 功能描述:DC/DC 開關控制器 Precision Step-Down for Portable CPU Pwr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 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 安裝風格: 封裝 / 箱體:CPAK |
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