MAX8668ETEX+T Maxim Integrated Products, MAX8668ETEX+T Datasheet - Page 9

• Manufacturer Part Number: MAX8668ETEX+T
• Description: IC DC-DC CONV W/DUAL LDO 16TQFN
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX8668ETEX+T

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 4
• Voltage - Output: 1.8V, 2.8V, 0.6 ~ 3.3 V (2)
• Current - Output: 600mA, 1.2A
• Frequency - Switching: 1.5MHz
• Voltage - Input: 2.6 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-TQFN Exposed Pad
• Power - Output: 1.67W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 1. Functional Diagram
GND
REF
EN1
EN2
EN3
EN4
1.5MHz Dual Step-Down DC-DC Converters
() ARE FOR THE MAX8668
_______________________________________________________________________________________
1.7V TO 5.5V
PWRON LOGIC
AND ENABLES
EN
REF AND BIAS
IN34
with Dual LDOs and Individual Enables
UVLO
IN
EN
IN
REF
EN
IN
IN
EN
EN
STEP-DOWN
STEP-DOWN
OUT3
OUT4
OUT2
LDO
OUT1
GND
GND
LDO
GND
GND
OUT
OUT
FB
FB
LX1
OUT1
(FB1)
PGND1
OUT3
OUT4
IN12
2.8V TO 5.5V
(2.6V TO 5.5V)
LX2
OUT2
(FB2)
PGND2
9