MAX8649EWE+T Maxim Integrated Products, MAX8649EWE+T Datasheet - Page 4

• Manufacturer Part Number: MAX8649EWE+T
• Description: IC REG STEP-DOWN 1.8A 16-WLP
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX8649EWE+T

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.75 ~ 1.38 V
• Current - Output: 1.8A
• Frequency - Switching: 3.25MHz
• Voltage - Input: 2.5 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-WLP
• Power - Output: 1.04W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1.8A Step-Down Regulator with Differential
Remote Sense in 2mm x 2mm WLP
ELECTRICAL CHARACTERISTICS (continued)
(V
+25°C.) (Note 2)
4
OUT Voltage Accuracy
Load Regulation
RAMP Timer
Peak Current Limit
(p-Channel MOSFET)
Valley Current Limit
(n-Channel MOSFET)
Negative Current Limit
(n-Channel MOSFET)
n-Channel Zero-Crossing
Threshold
LX pFET On-Resistance
LX nFET On-Resistance
LX Leakage
Operating Frequency
IN1
_______________________________________________________________________________________
= V
IN2
PARAMETER
= 3.6V, V
AGND
= V
PGND
No load, V
OPERATION_MODE_ = 1
I
OPERATION_MODE_ = 1
I
OPERATION_MODE_ = 1
R
RAMP[2:0] = 000
RAMP[2:0] = 001
RAMP[2:0] = 010
RAMP[2:0] = 011
RAMP[2:0] = 100
RAMP[2:0] = 101
RAMP[2:0] = 110
RAMP[2:0] = 111
PWM and hysteretic mode
Hysteretic mode
PWM mode
IN2 to LX, I
OPERATION_MODE = 0
LX to PGND, I
V
Internal oscillator, PWM
Internal oscillator, power-save mode before entering
PWM mode
13MHz option
19.2MHz option
26MHz option
OUT
OUT
LX
L
= 0V, V
is the resistance from LX to SNS+ (output)
= 5.5V or 0V
= no load, V
= no load, V
IN_
DD
LX
= 2.5V to 5.5V, V
= -200mA
LX
= 1.8V, T
= 200mA
IN_
IN_
= 2.5V to 5.5V, V
= 2.5V to 5.5V, V
CONDITIONS
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
OUT
= 1.27V
T
T
OUT
OUT
A
A
= +25°C
= +85°C
= 0.75V,
= 1.38V,
2.82
2.43
MIN
-0.5
-1.0
-0.5
2.3
1.8
2.0
-1
f
f
f
SYNC
SYNC
SYNC
R
32.50
16.25
8.125
4.063
2.031
1.016
0.508
0.254
TYP
0.08
0.06
0.03
0.05
3.25
3.25
2.8
2.4
2.5
L
50
/25
/4
/6
/8
MAX
+0.5
+1.0
+0.5
0.16
0.16
0.12
3.56
4.06
3.2
3.0
3.0
+1
UNITS
mV/µs
MHz
V/A
mA
µA
%
Ω
Ω
A
A
A
A
=