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MAX16974 Datasheet(PDF) 5 Page - Maxim Integrated Products

Part No. MAX16974
Description  High-Voltage, 2.2MHz, 2A Automotive Step- Down Converter with Low Operating Current
Download  19 Pages
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX16974 Datasheet(HTML) 5 Page - Maxim Integrated Products

 
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High-Voltage, 2.2MHz, 2A Automotive Step-
Down Converter with Low Operating Current
________________________________________________________________________________________ _ 5
Typical Operating Characteristics (continued)
(VSUP = VSUPSW = 14V, VOUT = 5V, FSYNC = GND, fOSC = 400kHz, TA = +25NC, unless otherwise noted. See Figure 1.)
LOAD TRANSIENT
MAX16974 toc06
0V
1A/div
200mV/div
0A
VOUT
ILOAD
SF = 400kHz
VOUT AC-
COUPLED
UNDERVOLTAGE PULSE
MAX16974 toc07
0V
0V
5V/div
5V/div
5V/div
0V
VSUP
VOUT
20ms/div
VRES
SF = 2.2MHz
RESET TIMEOUT PERIOD vs. CRES
CRES (µF)
0.9
0.8
0.6 0.7
0.2 0.3 0.4 0.5
0.1
10
20
30
40
50
60
70
80
90
100
0
0
1.0
SWITCHING FREQUENCY
vs. TEMPERATURE
TEMPERATURE (°C)
110
95
65 80
-10 5 20 35 50
-25
410
420
430
440
450
460
470
480
490
500
400
-40
125
VOUT = 5V
LOAD DUMP TEST (5V/2.2MHz)
MAX16974 toc10
0
0
20V/div
5V/div
5V/div
0
VSUP
VOUT
100ms/div
VRES
SHORT-CIRCUIT RESPONSE
MAX16974 toc11
0A
0V
5A/div
5V/div
5V/div
0V
ILX
VOUT
2ms/div
2.2MHz
VRES


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