MAX8625AETD+T Maxim Integrated Products, MAX8625AETD+T Datasheet - Page 2

• Manufacturer Part Number: MAX8625AETD+T
• Description: IC PWM STEP-UP/DWN REG 14-TDFN
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck), Step-Up (Boost)r

Specifications of MAX8625AETD+T

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 3.3V, 1.25 ~ 4 V
• Current - Output: 800mA
• Frequency - Switching: 1MHz
• Voltage - Input: 2.5 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 14-TDFN Exposed Pad
• Power - Output: 1.48W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ABSOLUTE MAXIMUM RATINGS
IN, OUT, SKIP, ON to GND ......................................-0.3V to +6V
REF, FB to GND.............................................-0.3V to (IN + 0.3V)
LX2, LX1 (Note 1).........................................................±1.5A
Continuous Power Dissipation (T
High-Efficiency, Seamless Transition,
Step-Up/Down DC-DC Converter
ELECTRICAL CHARACTERISTICS
(V
Typical values are at T
Note 1: LX1 and LX2 have internal clamp diodes to IN, GND and OUT, GND, respectively. Applications that forward bias these
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
2
Supply Range
UVLO Threshold
Quiescent Supply Current, FPWM
Mode, Switching
Quiescent Supply Current, Skip
Mode, Switching
Quiescent Supply Current, No
Switching, Skip Mode
Shutdown Supply Current
Output Voltage Accuracy
(Fixed Output)
Output Voltage Range
(Adjustable Output)
Maximum Output Current
Soft-Start
Load Regulation
Line Regulation
OUT Bias Current
REF Output Voltage
REF Load Regulation
FB Feedback Threshold
Single-Layer Board (derate 18.5mW/°C
IN
above T
_______________________________________________________________________________________
= 3.6V, ON = SKIP = IN, FB = GND, V
diodes should take care not to exceed the device's power-dissipation limits.
PARAMETER
A
= +70°C) ...................................................1482mW
A
= +25°C, unless otherwise noted.) (Note 2)
A
= +70°C)
SYMBOL
UVLO
V
I
V
V
OUT
I
I
I
I
REF
IN
IN
IN
IN
FB
IN
OUT
= 3.3V, LX_ unconnected, C
V
No load, V
SKIP = GND, no load
SKIP = GND, FB = 1.3V
ON = GND, T
T
PWM mode, V
I
T
SKIP mode, valley regulation value
Average skip voltage
Load step +0.5A
V
L = 3.3µH; C
I
V
V
V
I
I
to 5.5V
OUT
OUT
REF
OUT
A
A
IN
IN
IN
OUT
IN
= +85°C
= -40°C to +85°C (Note 3)
rising, 60mV hysteresis
= 3.6V
= 2.5V to 5.5V
= 2.5V to 5.5V
= 10µA
= 0 to 0.5A, V
= 0 to 500mA
= 0 to full load, PWM mode; V
= 3.3V
RMS
OUT
OUT
A
IN
= 3.2V
CONDITIONS
= +25°C
= 2.5V to 5.5V
= C3 + C4 = 44µF
IN
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
= 2.5V to 5.5V,
REF
= C5 = 0.1µF to GND, Figure 4. T
IN
= 2.5V
1.244
1.244
MIN
2.20
1.25
2.5
-1
3.285
TYP
3.30
3.28
0.80
0.03
1.25
1.25
250
0.1
0.2
0.1
15
37
35
-3
3
1
A
= -40°C to +85°C.
1.256
1.258
MAX
2.49
4.00
5.5
+1
22
45
1
mA/ms
UNITS
%/A
%/V
mA
mV
µA
µA
µA
µA
%
%
V
V
V
V
V
A
V
V