L6730C STMicroelectronics, L6730C Datasheet - Page 14

• 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: -

Device description
5.2
Figure 4.
5.3
Figure 5.
14/50
4.5V
Internal LDO
An internal LDO supplies the internal circuitry of the device. The input of this stage is the V
pin and the output (5V) is the V
Bypassing the LDO to avoid the voltage drop with low Vcc
The LDO can be by-passed, providing directly a 5V voltage to V
V
least 1µF capacitor to sustain the internal LDO during the recharge of the bootstrap capacitor.
V
(L6730D) and PGOOD pin (see
If Vcc
The maximum LDO output current is about 100mA and so the output voltage drop can be
100mV: to avoid this the LDO can be bypassed.
CCDR
CCDR
LDO block diagram.
Bypassing the LDO
14V
pins must be shorted together as shown in
also represents a voltage reference for Tmask pin, S/O/U pin (L6730C) or CC/O/U pin
5V the internal LDO works in dropout with an output resistance of about 1Ω.
LDO
CCDR
Table 3: Pins
pin (see
Figure
connection).
Figure 5.
4.).
V
CCDR
CCDR
pin must be filtered with at
. In this case Vcc and
L6730C - L6730D
CC