MAX1623EAP+ Maxim Integrated Products, MAX1623EAP+ Datasheet - Page 3

• Manufacturer Part Number: MAX1623EAP+
• Description: IC REG LV SYNC 3A STEPDWN 20SSOP
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX1623EAP+

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1.1 ~ 3.8 V
• Current - Output: 3A
• Frequency - Switching: Up to 350kHz
• Voltage - Input: 4.5 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-SSOP
• Power - Output: 1.3W
• Output Voltage: 1.1 V to 3.8 V
• Input Voltage: 4.5 V to 5.5 V
• Supply Current: 400 uA
• Switching Frequency: 350 KHz
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS
(V
Note 2: Guaranteed by design, not production tested.
Note 3: Idle Mode threshold is defined as the transition point in the load-current range between Idle Mode and constant-off-time
Note 4: Specifications to -40°C are guaranteed by design, not production tested.
Synchronous Rectification and Internal Switches
Input Voltage Range
Output Voltage
Output Adjustment Range
Reference Output Voltage
Current-Limit Threshold
PMOS Switch On-Resistance
NMOS Switch On-Resistance
No-Load Supply Current
Shutdown Supply Current
LX Leakage Current
Undervoltage Lockout Threshold
FB Input Bias Current
Off-Time Adjustment Range
Off-Time Default Period
SHDN Input Current
SHDN Input Low Voltage
SHDN Input High Voltage
IN
= V
CC
operation.
= 5V, FBSEL unconnected, R
PARAMETER
3A, Low-Voltage, Step-Down Regulator with
_______________________________________________________________________________________
V
I
FBSEL = GND or REF (Note 2)
I
V
V
Does not include switching losses
SHDN = GND
V
V
FBSEL = GND, adjustable output mode, V
SHDN = GND or V
TOFF
LOAD
REF
IN
IN
IN
IN
CC
= 4.5V to 5.5V,
= 4.5V
= 4.5V
= 5.5V, V
= 0
falling, 100mV hysteresis
= 110kΩ, T
= 0 to 3A
LX
= 5.5V or 0
A
CC
= -40°C to +85°C, unless otherwise noted.) (Note 4)
CONDITIONS
FBSEL = unconnected
FBSEL = V
FBSEL = GND or REF
CC
FB
= 1.2V
3.234
2.450
1.075
1.075
V
MIN
0.55
0.85
-20
-50
4.5
3.5
4.0
2.2
REF
-1
TYP
3.366
2.550
1.110
1.110
MAX
4.75
1.25
600
5.5
3.8
0.1
0.1
4.3
0.8
10
20
50
4
1
UNITS
µA
µA
µA
nA
µA
µs
µs
A
Ω
Ω
V
V
V
V
V
V
V
3