MAX8561ETA+T Maxim Integrated Products, MAX8561ETA+T Datasheet - Page 4

• Manufacturer Part Number: MAX8561ETA+T
• Description: IC DC-DC CONV ADJ 500MA 8-TDFN
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX8561ETA+T

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.6 ~ 2.5 V
• Current - Output: 500mA
• Frequency - Switching: 4MHz
• Voltage - Input: 2.7 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-TDFN Exposed Pad
• Power - Output: 1.95W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4MHz, 500mA Synchronous Step-Down
DC-DC Converters in Thin SOT and TDFN
(V
4
IN
100
90
80
70
60
50
40
47
46
45
44
43
42
41
40
39
_______________________________________________________________________________________
= 3.6V, V
0.1
2.0
EFFICIENCY vs. LOAD CURRENT
2.5
NO-LOAD SUPPLY CURRENT
OUT
4.7µH
vs. SUPPLY VOLTAGE
1
3.0
SUPPLY VOLTAGE (V)
LOAD CURRENT (mA)
LIGHT-LOAD SWITCHING WAVEFORMS
(V
= 1.2V, L = 1µH (LQH32CN1R0M53), C
OUT
3.5
2.2µH
10
= 1.2V)
4.0
R1 = R2 = 100kΩ
4.5
200ns/div
100
1µH
5.0
1000
5.5
50mA LOAD
MAX8560 toc10
100
Typical Operating Characteristics (continued)
0.1
90
80
70
60
50
40
10
1
I
200mA/div
V
2V/div
V
20mV/div
0
L
0.1
LX
OUT
0
EFFICIENCY vs. LOAD CURRENT
100
OUT
SWITCHING FREQUENCY
4.7µH
1
vs. LOAD CURRENT
1µH
LOAD CURRENT (mA)
LOAD CURRENT (mA)
= 2.2µF, T
(V
200
OUT
2.2µH
2.2µH
10
= 0.9V)
300
A
= +25°C, unless otherwise noted.)
100
4.7µH
1µH
400
HEAVY-LOAD SWITCHING WAVEFORMS
1000
500
1.24
1.23
1.22
1.21
1.20
1.19
1.18
1.17
1.16
100
90
80
70
60
50
40
200ns/div
0.5
0
OUTPUT VOLTAGE vs. LOAD CURRENT
EFFICIENCY vs. LOAD CURRENT
4.7µH
100
(VOLTAGE POSITIONING)
200mA LOAD
1.0
OUTPUT VOLTAGE (V)
LOAD CURRENT (mA)
2.2µH
(LOAD = 7.5Ω)
MAX8560 toc11
200
1.5
I
200mA/div
0
V
2V/div
V
20mV/div
L
300
LX
OUT
1µH
R1 = R2 = 100kΩ
2.0
400
500
2.5