MAX1957EUB+ Maxim Integrated Products, MAX1957EUB+ Datasheet - Page 11

• Manufacturer Part Number: MAX1957EUB+
• Description: IC CNTRLR PWM BUCK 10-UMAX
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX1957EUB+

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.4 ~ 4.73 V
• Current - Output: 3A
• Frequency - Switching: 300kHz
• Voltage - Input: 3 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Power - Output: 444mW
• Duty Cycle (max): 89 %
• Output Voltage: 0.4 V to 4.73 V
• Output Current: 3000 mA
• Mounting Style: SMD/SMT
• Switching Frequency: 300 KHz
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Synchronous Pin: No
• Topology: Boost, Buck
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 1. Suggested Components (continued)
DESIGNATION
Low-Cost, High-Frequency, Current-Mode PWM
C9-C13
N1-N2
N3-N4
C14
C4
C5
C6
C7
C8
C
D1
R
L1
R1
R2
R3
C
C
C
f
10µF, 6.3V X5R CER
Taiyo Yuden
JMK212BJ106MG
4.7µF, 6.3V X5R CER
Taiyo Yuden
JMK212BJ475MG
10µF, 6.3V X5R CER
Taiyo Yuden
JMK212BJ106MG
270pF, 10V X7R CER
Kemet
C0402C271M8RAC
Schottky diode
Central Semiconductor
CMPSH1-4
1µH 3.6A
Toko 817FY-1R0M
Dual MOSFET 20V 5A
Fairchild
FDS6898A
16.9k
8.06k
33k
______________________________________________________________________________________
5%
1%
1%
MAX1953
—
—
—
—
—
—
180µF, 4V SP Polymer
Panasonic
EEFUEOG181R
1000pF, 10V X7R CER
Kemet
C0402C102M8RAC
47pF, 10V C0G CER
Kemet
C0402C470K8GAC
Schottky diode
Central Semiconductor
CMPSH1-4
2.7µH 6.6A
Coilcraft
DO3316-272HC
Dual MOSFET 20V
Fairchild
FDS6890A
9.09k
8.06k
62k
5%
1%
1%
MAX1954
—
—
—
—
—
—
—
270µF, 2V SP Polymer
Panasonic
EEFUEOD271R
270µF, 2V SP Polymer
Panasonic
EEFUEOD271R
10µF, 6.3V X5R CER
Taiyo Yuden
JMK212BJ106MG
4.7µF, 6.3V X5R CER
Taiyo Yuden
JMK212BJ475MG
0.1µF, 50V X7R CER
Taiyo Yuden
UMK107BJ104KA
1500pF, 50V X7R CER
Murata
GRM39X7R152K50
470pF, 50V X7R CER
Murata
GRM39X7R471K50
68pF, 50V COG CER
Murata
GRM39COG680J50
Schottky diode
Central Semiconductor
CMPSH1-4
2.7µH 6.6A
Coilcraft
DO3316-272HC
Dual MOSFET 20V
Fairchild
FDS6898A
2k
2k
10k
51.1k
1%
1%
5%
5%
MAX1957
—
—
Buck Controller
10µF, 6.3V X5R CER
Taiyo Yuden
JMK212BJ106MG
10µF, 6.3V X5R CER
Taiyo Yuden
JMK212BJ106MG
10µF, 6.3V X5R CER
Taiyo Yuden
JMK212BJ106MG
0.1µF, 50V X7R CER
Taiyo Yuden
UMK107BJ104KA
270µF, 2V SP polymer
Panasonic
EEFUEOD271R
270µF, 2V SP polymer
Panasonic
EEFUEOD271R
560pF, 10V X7R CER
Kemet
C0402C561M8RAC
15pF, 10V C0G CER
Kemet
C0402C150K8GAC
Schottky diode
Central Semiconductor
CMPSH1-4
0.8µH 27.5A
Sumida
CEP125U-0R8
N-channel 30V
International Rectifier
IRF7811W
N-channel 30V
Siliconix Si4842DY
10k
8.06k
270k
1%
20A CIRCUIT
5%
1%
—
11