MAX1951ESA+ Maxim Integrated Products, MAX1951ESA+ Datasheet - Page 13

• Manufacturer Part Number: MAX1951ESA+
• Description: IC DC-DC PWM SW REG 2A 8-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX1951ESA+

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8 ~ 5.5 V
• Current - Output: 2A
• Frequency - Switching: 1MHz
• Voltage - Input: 2.6 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Power - Output: 976mW
• Output Voltage: 0.8 V
• Output Current: 2 A
• Input Voltage: 2.6 V to 5.5 V
• Supply Current: 6 mA
• Switching Frequency: 1 MHz
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 2c. MAX1951 Typical Application Circuit with 2A Output
L1: TOKO A915AY-1R1M
C1: TAIYO YUDEN JMK316BJ106ML
C4: TAIYO YUDEN JMK325BJ226MM
2A PWM Step-Down DC-to-DC Regulators
______________________________________________________________________________________
1MHz, All-Ceramic, 2.6V to 5.5V Input,
10μF
C1
3.3V ±5%
100pF
C2
ON
0.1μF
C5
OFF
100kΩ
R1
10kΩ
OPTIONAL
SHUTDOWN
CONTROL
R5
10Ω
R4
Q1
IN
COMP
V
CC
MAX1951ESA
GND
PGND
0.1μF
REF
LX
FB
C3
10kΩ
1.1μH
1%
R2
L1
12.7kΩ
1%
R3
1.8V, 2A
GND
C4
22μF
13