MAX1842EEE+ Maxim Integrated Products, MAX1842EEE+ Datasheet - Page 15

• Manufacturer Part Number: MAX1842EEE+
• Description: IC BUCK SYNC FIX/ADJ 1A 16QSOP
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX1842EEE+

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1.5V, 1.8V, 2.5V, Adj
• Current - Output: 1A
• Frequency - Switching: 1MHz
• Voltage - Input: 3 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Power - Output: 1W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3) Place the LX node components as close together
4) A ground plane is essential for optimum perfor-
TRANSISTOR COUNT: 3662
and as near to the device as possible. This reduces
resistive and switching losses as well as noise.
mance. In most applications, the circuit is located on
a multilayer board, and full use of the four or more
layers is recommended. Use the top and bottom lay-
ers for interconnections and the inner layers for an
uninterrupted ground plane. Avoid large AC currents
through the ground plane.
Synchronous Rectification and Internal Switches
______________________________________________________________________________________
1A/2.7A, 1MHz, Step-Down Regulators with
Chip Information
TOP VIEW
COMP
SHDN
TOFF
SS
LX
FB
IN
IN
1
2
3
4
5
6
7
8
MAX1742
MAX1842
QSOP
Pin Configuration
16
15
14
13
12
11
10
9
LX
PGND
LX
PGND
V
FBSEL
REF
GND
CC
15