L6730C STMicroelectronics, L6730C Datasheet - Page 42

• Manufacturer Part Number: L6730C
• Description: IC CTRLR ADJ STPDN SYNC 20-TSSOP
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of L6730C

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: Adj to 0.6V
• Frequency - Switching: 100kHz ~ 1MHz
• Voltage - Input: 1.8 ~ 14 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP Exposed Pad, 20-eTSSOP, 20-HTSSOP
• Package: HTSSOP20, QFN4x4 24L
• For Use With: 497-5868 - EVAL BOARD 30A 400KHZ L6730497-5501 - EVAL BOARD FOR L6730XX
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Power - Output: -

Efficiency
9
Figure 36. Demoboard efficiency 400KHz
Figure 37. Demoboard efficiency 645KHz
42/50
Efficiency
The following figures show the demoboard efficiency versus load current for different values of
input voltage and switching frequency:
95.00%
90.00%
85.00%
80.00%
75.00%
95.00%
90.00%
85.00%
80.00%
75.00%
70.00%
1
1
V
V
V
IN = 5V
IN = 5V
IN = 5V
V
IN = 5V
V
IN = 12V
V
3
3
IN = 12V
Fsw=400KHz
Fsw=645KHz
5
5
7
7
Iout (A)
Iout (A)
9
9
11
11
V
O
13
13
= 3.3V
V
O
= 3.3V
L6730C - L6730D
15
15