ZL2105ALNF Intersil, ZL2105ALNF Datasheet - Page 9

• Manufacturer Part Number: ZL2105ALNF
• Description: IC DGTL DC-DC CTRLR 3A 36QFN
• Manufacturer: Intersil
• Type: Step-Down (Buck), PWM - Voltage Moder

Specifications of ZL2105ALNF

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.6 V ~ 5.5 V
• Current - Output: 3A
• Frequency - Switching: 200kHz ~ 2MHz
• Voltage - Input: 4.5 V ~ 14 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: *
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

For all applications, the ZL2105 must be derated according to the Safe Operating Area (SOA) curves.
0.95
0.85
0.75
0.65
0.55
0.45
0.35
0.9
0.8
0.7
0.6
0.5
0.4
0.3
1
5
4
3
2
0.2
0.2
9
0.3
V
Circuit from Figure 3 except L=2.2μH.
Appropriate L should be selected as described in Section 5.9 of data sheet
OUT
T
L = 2.2μH
V
J
IN
0.4
may not exceed 5.5V at any time
0.4
≤ 125°C
= 4.5V
0.5
ZL2105 SOA vs Frequency
Max Conversion Ratio vs Switching Frequency
0.6
Switching Frequency, F
0.6
V
0.7
IN
Figure 4. ZL2105 SOA Curves
0.8
= 12V
0.8
0.9
ZL2105
1.0
T
J
1
< 125 C
f
SW
1.1
(MHz)
1.2
V
IN
1.2
= 5V
SW
1.3
1.4
(MHz)
1.4
1.6
1.5
1.6
1.8
1.7
1.8
2.0
1.9
March 30, 2011
2
FN6851.2