L6730TR STMicroelectronics, L6730TR Datasheet - Page 19

• Manufacturer Part Number: L6730TR
• Description: IC CTRLR ADJ STEP DOWN 20-TSSOP
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of L6730TR

• 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
• Output Voltage: 0.6 V
• Input Voltage: 1.8 V to 14 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• 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: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-5098-2

L6730 - L6730B
protection on page
V
(L6730). With the L6730B there is the possibility to set the HICCUP mode or the constant
current mode after the soft-start acting on the multifunction pin CC/O/U. With the L6730 the
low-side MOSFET(s) management after soft-start phase depends on the S/O/U pin state
(see related section). If the sink mode is enabled the converter can sink current after soft-
start (see
(see
Figure 11. Sink mode enabled: Inductor current during and after soft-start (L6730)
During normal operation, if any under voltage is detected on one of the two supplies (V
V
rapidly discharged. Two different turn-on UVLO thresholds can be set: 4.2 V for 5 V BUS
and 8.6 V for 12 V BUS.
SS
IN
), the SS pin is internally shorted to GND by an internal switch so the SS capacitor is
reaches 3.5 V. After that the over current-protection triggers the HICCUP mode
Figure
Figure
12).
11) while, if the sink mode is disabled the converter never sinks current
21) but not enter into HICCUP mode. The soft-start phase ends when
Doc ID 11938 Rev 3
Device description
V
V
V
I
OUT
L
SS
CC
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CC
,