參數(shù)資料
型號(hào)： MAX1638EAG
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： High-Speed Step-Down Controller with Synchronous Rectification for CPU Power
中文描述： SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PDSO24
封裝： SSOP-24
文件頁(yè)數(shù)： 5/16頁(yè)
文件大?。?/td> 149K
代理商： MAX1638EAG
M
High-S peed S tep-Down Controller with
S ync hronous Rec tific ation for CPU Power
_______________________________________________________________________________________
5
FOLDBACK CURRENT LIMIT
M
V
O
= 2.0V NOMINAL
A: V
OUT
= 0.5V/div
B: INDUCTOR CURRENT, 5A/div
A
B
10
μ
s/div
START-UP WAVEFORMS
M
A: V
OUT
= 0.5V/div
B: INDUCTOR CURRENT, 5A/div
A
B
400
μ
s/div
1
μ
s/div
SWITCHING WAVEFORMS
C
0
M
V
= 5V, V
OUT
= 2.5V, LOAD = 5A
A: LX, 5V/div
B: V
OUT
, 20mV/div, AC COUPLED
C:INDUCTOR CURRENT,
5A/div
B
A
LOAD-TRANSIENT RESPONSE
WITHOUT GLITCHCATCHER (C
OUT
= 880
μ
F)
M
V
IN
= 5V, V
OUT
= 2.0V, LOAD = 14A, 3A/
μ
s
A: V
OUT
, 50mV/div, AC COUPLED
B: INDUCTOR CURRENT, 10A/div
A
B
10
μ
s/div
LOAD-TRANSIENT RESPONSE
WITHOUT GLITCHCATCHER (C
OUT
= 440
μ
F)
M
V
= 5V, V
= 2.0V, LOAD = 14A, 3A/
μ
s
A: V
, 100mV/div, AC COUPLED
B: INDUCTOR CURRENT, 10A/div
A
B
10
μ
s/div
LOAD-TRANSIENT RESPONSE
WITH GLITCHCATCHER
M
C
OUT
= 440
μ
F, V
IN
= 5V, V
OUT
= 2.0V, LOAD = 14A, 30A/
μ
s
A: V
OUT
, 100mV/div,
C: NDRV, 5V/div
AC COUPLED
D: INDUCTOR CURRENT,
B: PDRV, 5V/div
10A/div
A
D
B
C
10
μ
s/div
__________________________________________Typic al Operating Charac teristic s
(T
A
= +25°C, using the MAX1638 evaluation kit, unless otherwise noted.)
100
90
30
0.1
10
100
EFFICIENCY vs. OUTPUT CURRENT
50
40
80
70
60
M
OUTPUT CURRENT (A)
E
1
V
OUT
= 2.0V
V
OUT
= 1.3V
V
OUT
= 3.5V
5.094
1.094
0.001
0.1
1
0.01
10
REFERENCE VOLTAGE
vs. OUTPUT CURRENT
1.594
2.094
M
OUTPUT CURRENT (mA)
R
2.594
3.594
3.094
4.094
4.594
SOURCING
CURRENT
SINKING
CURRENT
50
55
0
MAXIMUM DUTY CYCLE
vs. SWITCHING FREQUENCY
65
60
70
M
SWITCHING FREQUENCY (kHz)
M
85
95
90
75
80
200
800
1000 1200
100
600
400
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參數(shù)描述
MAX1638EAG+ 功能描述:DC/DC 開關(guān)控制器 High Speed Step Down 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
MAX1638EAG+T 功能描述:DC/DC 開關(guān)控制器 High Speed Step Down 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
MAX1638EAG-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
MAX1638VRMEVKIT 功能描述:DC/DC 開關(guān)控制器 High-Speed Step-Down Controller with Synchronous Rectification for CPU Power 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
MAX1639ESE 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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