MAX8667ETEHR+ Maxim Integrated Products, MAX8667ETEHR+ Datasheet - Page 12

• Manufacturer Part Number: MAX8667ETEHR+
• Description: IC DC-DC CONV W/DUAL LDO 16TQFN
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX8667ETEHR+

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 4
• Voltage - Output: 1.2V, 1.8V, 2.6V, 2.8V
• 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

1.5MHz Dual Step-Down DC-DC Converters
with Dual LDOs and Individual Enables
Figure 3. MAX8667 Typical Application Circuit
Figure 4. MAX8668 Typical Application Circuit
12
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0.6V TO 3.3V, 1.2A
2.2µF for V
4.7µF for V
2.8V TO 5.5V
2.6V TO 5.5V
OUT2
1.2A
OUT2
INPUT
INPUT
OUT2
OUT2
≤ 1.8V
> 1.8V
C7
2.2µF
C7
0.01µF
10µF
C2
C1
0.01µF
10µF
C5
C2
C1
C10*
2.2µH
2.2µH
R5*
L2
L2
R3
R4
EN1
EN2
LX2
OUT2
REF
GND
*C10, R5, AND R6 ARE OPTIONAL
PGND2
IN12
EN1
EN2
LX2
FB2
REF
GND
MAX8667
PGND1
IN12
MAX8668
IN34
PGND1
1.7V TO 5.5V
OUT3
OUT4
OUT1
IN34
PGND2
EN3
EN4
LX1
OUT3
OUT4
EN3
EN4
LX1
FB1
4.7µF
4.7µF
C8
C3
2.2µH
4.7µF
R1
R2
L1
C8
2.2µH
C4
R6*
L1
C9
4.7µF
C6
2.2µF
C6
2.2µF
OUT1
600mA
C9
4.7µF
300mA
300mA
OUT3, 300mA
OUT4, 300mA
OUT1
0.6V TO 3.3V, 600mA