MAX5099ATJ+T Maxim Integrated Products, MAX5099ATJ+T Datasheet - Page 6

• Manufacturer Part Number: MAX5099ATJ+T
• Description: IC CONV BUCK SYNC DL 32TQFN-EP
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX5099ATJ+T

• Internal Switch(s): Both
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 0.8 ~ 17.1 V
• Current - Output: 1A, 2A
• Frequency - Switching: 200kHz ~ 2.2MHz
• Voltage - Input: 4.5 ~ 19 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• Power - Output: 2.76W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Dual, 2.2MHz, Automotive Synchronous Buck
Converter with 80V Load-Dump Protection
(V+ = V
6
100
100
_______________________________________________________________________________________
5.4
5.2
5.0
4.8
4.6
4.4
4.2
4.0
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0.2
400
0.2
vs. CONVERTER SWITCHING FREQUENCY
IN_HIGH
BOTH CONVERTERS SWITCHING
FSEL_1 = V
V
V
V
CONVERTER SWITCHING FREQUENCY (kHz)
0.4
IN
IN
IN
0.3
= 4.5V
V
= 4.5V
= 8V
700
IN
0.6 0.8 1.0
= 5.5V
OUTPUT1 EFFICIENCY
OUTPUT2 EFFICIENCY
0.4
V
V
= 14V, unless otherwise noted. V+ = V
vs. LOAD CURRENT
IN
vs. LOAD CURRENT
L
L
1000
LOAD CURRENT (A)
= 5.5V
LOAD CURRENT (A)
OUTPUT VOLTAGE
V
V
IN
0.5
IN
= 5V
= 14V
V
IN
1300
V
0.6
IN
= 8V
1.2 1.4
= 8V
V
0.7
IN
V
1600
IN
= 14V
V
f
SW
V
f
L2 = 27μH
SW
OUT
= 16V
OUT
0.8
= 1.85MHz
1.6
= 300kHz
= 5V
V
V
= 3.3V
1900
IN
IN
0.9
1.8
= 19V
= 16V
2200
2.0
1.0
5.00
4.98
4.96
4.94
4.92
4.90
100
0.1
90
80
70
60
50
40
30
20
10
10
0
1
0.2
0.2
0
IN_HIGH
V
CONVERTER 1
V
FSEL_1 = V
FSEL_1 = GND,
IN
IN
0.4
0.3
= 8V
= 4.5V
EACH CONVERTER SWITCHING
0.6
OUTPUT2 EFFICIENCY
V
0.4
FREQUENCY vs. R
CONVERTER 1, CONVERTER 2
20
IN
vs. LOAD CURRENT
OUTPUT1 VOLTAGE
vs. LOAD CURRENT
L
means that N1 is shorted externally.)
= 5.5V
,
LOAD CURRENT (A)
0.8
LOAD CURRENT (A)
V
IN
0.5
= 14V
R
1.0
OSC
V
IN
0.6
40
= 8V
(kΩ)
Typical Operating Characteristics
1.2
0.7
V
V
1.4
IN
V
f
IN
V
f
SW
SW
OSC
= 14V
OUT
OUT
0.8
= 16V
60
= 1.85MHz
1.6
= 1.85MHz
= 3.3V
= 5V
V
IN
0.9
= 16V
1.8
1.0
2.0
80
3.30
3.29
3.28
3.27
3.26
3.25
3.24
3.23
100
0.1
90
80
70
60
50
40
30
20
10
10
0
1
0.2
0.2
-40
V
FSEL_1 = V
V
IN
IN
0.4
0.3MHz
FREQUENCY vs. TEMPERATURE
0.3
EACH CONVERTER SWITCHING
= 4.5V
= 8V
V
-5
0.6 0.8 1.0
IN
OUTPUT1 EFFICIENCY
0.4
0.6MHz
= 5.5V
vs. LOAD CURRENT
OUTPUT2 VOLTAGE
vs. LOAD CURRENT
L
LOAD CURRENT (A)
TEMPERATURE (°C)
LOAD CURRENT (A)
V
1.25MHz
IN
0.5
30
= 14V
V
1.85MHz
IN
0.6
= 8V
1.2 1.4
65
0.7
V
V
IN
IN
V
f
L1 = 18μH
= 14V
V
f
SW
SW
2.2MHz
= 16V
OUT
OUT
0.8
1.6
= 300kHz
= 1.85MHz
100
V
= 5V
= 3.3V
IN
0.9
1.8
= 16V
2.0
135
1.0