MAX8505EEE+ Maxim Integrated Products, MAX8505EEE+ Datasheet - Page 8

• Manufacturer Part Number: MAX8505EEE+
• Description: IC REG STP DWN 3A 16-QSOP
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX8505EEE+

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8 ~ 4.68 V
• Current - Output: 3A
• Frequency - Switching: 500kHz, 1MHz
• Voltage - Input: 2.6 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Power - Output: 1W
• Input Voltage: 2.6 V to 5.5 V
• Supply Current: 6 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3A, 1MHz, 1% Accurate, Internal Switch
Step-Down Regulator with Power-OK
8
(Typical values are at V
_______________________________________________________________________________________
(V
IN
= 3.3V, V
SOFT-START/SHUTDOWN WAVEFORM
(V
OUT
TRANSIENT RESPONSE
IN
= 1.2V, I
= 3.3V, V
IN
400µs/div
40µs/div
= V
OUT
OUT
CC
= 3A, C
= 1.2V)
= V
CTL
MAX8505 toc14
REF
MAX8505 toc16
= 5V, V
= 0.068µF)
OUTPUT VOLTAGE
AC-COUPLED
100mV/div
2.25A
0.75A
0
V
500mV/div
V
5V/div
INPUT CURRENT
1A/div
V
5V/div
OUT
CTRL
POK
OUT
Typical Operating Characteristics (continued)
OUTPUT
CURRENT
1A/div
= 1.2V, I
OUT
= 3A, and T
A
TRANSIENT RESPONSE DURING SOFT-START
= +25°C, unless otherwise noted.)
(V
IN
= 5V, V
SWITCHING WAVEFORM
OUT
100µs/div
200ns/div
= 1.2V, I
OUT
= 2.5A)
MAX8505 toc17
MAX8505 toc15
V
100mV/div
I
2A/div
V
2V/div
INDUCTOR CURRENT
AC-COUPLED
2A/div
V
AC-COUPLED
20mV/div
OUT
OUT
LX
OUT