MAX8625AETD+T Maxim Integrated Products, MAX8625AETD+T Datasheet - Page 6

• 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

High-Efficiency, Seamless Transition,
Step-Up/Down DC-DC Converter
6
(V
IN
_______________________________________________________________________________________
= 3.6V, SKIP = GND, T
500mA/div
500mA/div
2V/div
I
-10
-20
-30
-40
-50
-60
BATT
40
30
20
10
ON
I
0
LX
1
V
IN
V
V
LOAD = 200mA
GAIN AND PHASE vs. FREQUENCY
IN
OUT
= 3.6V, LOAD = 5Ω, V
PHASE
= 3.6V
= 3.3V
STARTUP WAVEFORMS
LOAD TRANSIENT
A
10
FREQUENCY (kHz)
V
= +25°C, Figure 4, unless otherwise noted.)
BODE PLOT
GAIN
OUT
400µs/div
2ms/div
= 3.3V
100
OUT
= 3.288V
MAX8625A toc18
MAX8625A toc16
MAX8625A toc20
Typical Operating Characteristics (continued)
1000
I
250mA/div
I
500mA/div
V
100mV/div
(DC OFFSET = 3.3V)
V
20mV/div
LX
BATT
OUT
180
144
108
72
36
0
-36
-72
-108
-144
-180
OUT
3V OFFSET
2V/div
1V/div
500mV/div
CH1 = V
V
OUT
ON
1.06
1.04
1.02
1.00
0.98
0.96
0.94
0.92
0.90
V
IN
IN
-40
STARTUP WAVEFORMS (FIGURE 3)
= 3.6V, LOAD = 30Ω, V
-20
V
OSCILLATOR FREQUENCY
OUT
V
vs. TEMPERATURE
0
IN
LINE TRANSIENT
= 3.3V, LOAD = 5.5Ω,
TEMPERATURE (°C)
2ms/div
RAMP 3V TO 4V
20
1ms/div
40
OUT
60
MAX8625A toc17
= 1.5V
MAX8625A toc19
80
I
500mA/div
I
100mA/div
LX
BATT
100
CH2 = V
50mV/div
(AC-COUPLED)
OUT