MAX5073ETI+ Maxim Integrated Products, MAX5073ETI+ Datasheet - Page 12

• Manufacturer Part Number: MAX5073ETI+
• Description: IC CONV BUCK/BOOST 28-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck), Step-Up (Boost)r

Specifications of MAX5073ETI+

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 2
• Voltage - Output: 0.8 ~ 28 V
• Current - Output: 1A, 2A
• Frequency - Switching: 200kHz ~ 2.2MHz
• Voltage - Input: 4.5 ~ 23 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Power - Output: 2.76W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.2MHz, Dual-Output Buck or Boost Converter
with Internal Power MOSFETs
Figure 2. Functional Diagram
12
BYPASS
SYNC
CKO
OSC
EN1
EN2
______________________________________________________________________________________
V+
OSCILLATOR
MAX5073
MAIN
CONVERTER 1
SOFT-START
DIGITAL
VREF
OSCILLATOR
OSCILLATOR
DEAD-TIME
CONTROL
FREQUENCY
FOLDBACK
Q
Q
CONVERTER 2
Q
f
SW
/ 4
0.5V
V
0.92V
REF
REF
REF
N
VL
LDO
VL
VL
BST1/VDD1
DRAIN1
SOURCE1
PGOOD1
FB1
COMP1
BST2/VDD2
PGOOD2
DRAIN2
SOURCE2
FB2
COMP2
VDD2