MAX8640YEXT25+T Maxim Integrated Products, MAX8640YEXT25+T Datasheet - Page 4

• Manufacturer Part Number: MAX8640YEXT25+T
• Description: IC DC-DC CONV 2.5V SC70-6
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX8640YEXT25+T

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 2.5V
• Current - Output: 500mA
• Frequency - Switching: 2MHz
• Voltage - Input: 2.7 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SC-70-6, SC-88, SOT-363
• Power - Output: 245mW
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Tiny 500mA, 4MHz/2MHz Synchronous
Step-Down DC-DC Converters
4
(V
IN
_______________________________________________________________________________________
= 3.6V, V
OUT
V
SHDN
V
V
OUT
OUT
V
I
I
I
LX
= 1.5V, MAX8640Z, L = Murata LQH32CN series, T
IN
IN
LX
LIGHT-LOAD STARTUP WAVEFORM
LINE-TRANSIENT RESPONSE
(4V TO 3.5V TO 4V)
(100Ω LOAD)
20μs/div
20μs/div
MAX8640Y/Z toc08
MAX8640Y/Z toc10
V
Typical Operating Characteristics (continued)
I
OUT
OUT
I
LX
5V/div
1V/div
0V
100mA/div
0mA
500mA/div
0mA
1V/div
4V
20mV/div
AC-COUPLED
200mA/div
0mA
LOAD-TRANSIENT RESPONSE
(10mA TO 500mA TO 10mA)
40μs/div
A
= +25°C, unless otherwise noted.)
V
MAX8640Y/Z toc12
SHDN
V
V
I
OUT
OUT
OUT
I
I
I
LX
LX
IN
HEAVY-LOAD STARTUP WAVEFORM
100mV/div
AC-COUPLED
500mA/div
0V
200mA/div
LOAD-TRANSIENT RESPONSE
(5mA TO 250mA TO 5mA)
(5Ω LOAD)
20μs/div
40μs/div
MAX8640Y/Z toc09
MAX8640Y/Z toc11
5V/div
1V/div
0V
100mA/div
0mA
500mA/div
0mA
50m/div
AC-COUPLED
500mA/div
200mA/div
0mA