MAX1972EEE+ Maxim Integrated Products, MAX1972EEE+ Datasheet - Page 8

• Manufacturer Part Number: MAX1972EEE+
• Description: IC REG STP DWN 750MA 16-QSOP
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX1972EEE+

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 1.5V, 1.8V, 2.5V, 3.3V, Adj
• Current - Output: 750mA
• Frequency - Switching: 1.4MHz
• Voltage - Input: 2.6 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Power - Output: 667mW
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Dual, 180° Out-of-Phase, 1.4MHz, 750mA Step-
Down Regulator with POR and RSI/PFO
(T
8
A
= +25°C, unless otherwise noted.)
_______________________________________________________________________________________
V
I
V
V
OUT1
OUT1
LX1
LX2
I
I
L1
L2
V
V
I
R
V
V
I
OUT1
OUT1
IN
OUT1
IN
OUT1
C1
MAX1970/MAX1972
= 5V
= 5V
= 82kΩ, C
= 500mA, I
= 300mA TO 600mA
= 1.8V, V
LOAD-TRANSIENT RESPONSE
= 3.3V, 100mV/div
SWITCHING WAVEFORMS
C1
OUT2
OUT2
= 680pF
200ns/div
40µs/div
= 2.5V
= 500mA
MAX1970/MAX1972
Typical Operating Characteristics (continued)
MAX1970TOC11
5V/div
200mA/div
200mA/div
5V/div
V
I
OUT2
OUT2
14
12
10
8
6
4
2
0
MAXIMUM OUTPUT TRANSIENT DURATION
0.01
V
V
I
R
OUT2
MAXIMUM OUTPUT TRANSIENT DURATION (µs)
IN
OUT2
C2
MAX1970/MAX1972
vs. POR COMPARATOR OVERDRIVE
= 5V
= 39kΩ, C
= 300mA TO 600mA
= 1.5V, 100mV/div
LOAD-TRANSIENT RESPONSE
C2
0.1
= 680pF
40µs/div
1
10