STEVAL-ISA055V2 STMicroelectronics, STEVAL-ISA055V2 Datasheet - Page 14
![BOARD EVAL BASED ON ST1S12](/photos/9/14/91468/steval-isa055v2_sml.jpg)
STEVAL-ISA055V2
Manufacturer Part Number
STEVAL-ISA055V2
Description
BOARD EVAL BASED ON ST1S12
Manufacturer
STMicroelectronics
Type
DC/DC Switching Converters, Regulators & Controllersr
Specifications of STEVAL-ISA055V2
Mfg Application Notes
ST1S12 AppNote
Main Purpose
DC/DC, Step Down
Outputs And Type
1, Non-Isolated
Voltage - Output
3.3V
Current - Output
700mA
Voltage - Input
2.5 ~ 5.5V
Regulator Topology
Buck
Frequency - Switching
1.7MHz
Board Type
Fully Populated
Utilized Ic / Part
ST1S12
Input Voltage
2.5 V to 5.5 V
Output Voltage
3.3 V
Product
Power Management Modules
Silicon Manufacturer
ST Micro
Silicon Core Number
ST1S12XX
Kit Application Type
Power Management - Voltage Regulator
Application Sub Type
Synchronous Buck Converter
Kit Contents
Board
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For Use With/related Products
ST1S12x
Other names
497-8220
Typical performance characteristics
14/20
Figure 22. Line transient
V
Figure 24. Start-up transient
V
IN
IN
= V
10µF, V
= V
10µF, V
EN
EN
from 4.5 V to 5.5 V, I
from 0 V to 6 V, I
OUT
OUT
= 1.8 V
= 1.8 V
OUT
OUT
= 350 mA, C
= 350 mA, C
IN
= C
IN
= C
OUT
Doc ID 14314 Rev 3
OUT
=
V
V
V
V
IN
OUT
OUT
IN
=
Figure 23. Load transient
V
Figure 25. Enable transient
V
IN
IN
=3.6, V
= V
10µF, V
EN
= 3 V, I
EN
OUT
ST1S12XX, ST1S12XX12, ST1S12XX18
from 0 V to 2 V, I
= 1.8 V
OUT
= 100 mA to 700 mA, t
OUT
= 350 mA, C
R
= t
IN
F
= C
= 200 ns
V
I
OUT
OUT
OUT
V
V
EN
OUT
=