L6730B STMicroelectronics, L6730B Datasheet - Page 16

• Manufacturer Part Number: L6730B
• Description: IC CTRLR ADJ STPDN SYNC 20-TSSOP
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of L6730B

• 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
• Package: HTSSOP20
• 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

Device description
5.4
16/52
Figure 6.
Internal and external references
It is possible to set two internal references, 0.6 V and 1.2 V, or provide an external reference
from 0 V to 2.5 V. The maximum value of the external reference depends on the V
V
maximum external reference is 2.5 V (typ).
●
●
●
Providing an external reference from 0V to 450 mV the output voltage will be regulated but
some restrictions must be considered:
●
●
●
To set the resistor divider it must be considered that a 100 kΩ pull-down resistor is
integrated into the device (see
voltage at the EAREF pin is captured by the device at the start-up when Vcc is about 4 V.
CC
= 4 V the clamp operates at about 2 V (typ.), while with V
V
V
V
The minimum OVP threshold is set at 300 mV.
The under-voltage-protection doesn’t work.
The PGOOD signal remains low.
EAREF
EAREF
EAREF
Bypassing the LDO
from 80% to 95% of V
from 95% to 100% of V
from 0% to 80% of V
Doc ID 11938 Rev 3
Figure
CCDR
CCDR
CCDR
7.). Finally it must be taken into account that the
−> External reference
−> V
−> V
REF
REF
= 1.2 V
= 0.6 V
CC
greater than 5 V the
L6730 - L6730B
CC
: with