STEVAL-ISA045V1 STMicroelectronics, STEVAL-ISA045V1 Datasheet - Page 7
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STEVAL-ISA045V1
Manufacturer Part Number
STEVAL-ISA045V1
Description
BOARD EVAL BASED ON ST1S09
Manufacturer
STMicroelectronics
Type
DC/DC Switching Converters, Regulators & Controllersr
Specifications of STEVAL-ISA045V1
Design Resources
STEVAL-ISA045V1 Gerber Files STEVAL-ISA045V1 Schematic STEVAL-ISA045V1 Bill of Material
Main Purpose
DC/DC, Step Down
Outputs And Type
1, Non-Isolated
Voltage - Output
1.2V
Current - Output
2A
Voltage - Input
2.7 ~ 5.5 V
Regulator Topology
Buck
Frequency - Switching
1.5MHz
Board Type
Fully Populated
Utilized Ic / Part
ST1S09
Input Voltage
2.7 V to 5.5 V
Output Voltage
1.2 V
Product
Power Management Modules
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
ST1S09
Other names
497-6370
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
STEVAL-ISA045V1
Manufacturer:
STMicroelectronics
Quantity:
1
ST1S09
Table 7.
1. Guaranteed by design, but not tested in production.
R
R
%V
%V
%V
%V
Symbol
PWMf
T
DSON
DSON
D
T
OVP
V
I
I
SHDN
SWL
FB
I
INH
MAX
HYS
V
I
I
O
O
O
FB
O
INH
ν
Q
O
/ΔV
/ΔI
/ΔI
/ΔI
I
-N
-P
S
O
O
O
I
Feedback voltage
V
Minimum input voltage
Over voltage protection
threshold
Over voltage protection
hysteresis
Quiescent current
Output current
Inhibit threshold
Inhibit pin current
Output line regulation
Output load regulation
PWM switching frequency
Maximum duty cycle
NMOS switch on resistance
PMOS switch on resistance
Switching current limitation
Efficiency
Thermal shutdown
Thermal shutdown hysteresis
Load transient response
Short circuit removal response
Refer to
C2 = 22 µF, L1 = 2.7 µH, T
referred to 25 °C)
Electrical characteristics for ST1S09IPU
FB
pin bias current
Parameter
(1)
Figure 22
application circuit V
J
= -30 to 125 °C (unless otherwise specified. Typical values are
I
V
V
V
V
V
Device ON, V
Device ON, V
Device OFF
V
I
V
I
I
(1)
I
I
I
t
I
T
O
O
SW
SW
O
O
O
R
O
A
O
O
INH
INH
I
I
FB
Doc ID 13632 Rev 4
= 10 mA to 2 A
= 2.7 to 5.5 V
= 2.7 V to 5.5 V, I
= 10 mA to 2 A
= 10 mA to 100 mA, V
= 100 mA to 2 A, V
= 100 mA to 1 A, T
= t
= 10 mA to I
= 25 °C
rising
falling
= 750 mA
= 750 mA
= 0.65 V
F
> 1.2 V, not switching
< 0.4 V, T = - 30 °C to 85 °C
≥ 200 ns
Test conditions
IN_SW
(1)
I
I
= 2.7 to 5.5 V
= 2.7 to 5 V
O
(1)
(1)
= short,
= V
(1)
O
A
O
= 100 mA
IN_A
= 25 °C
= 3.3 V
O
= 3.3 V
= V
INH
(1)
= 5 V, V
1.05 V
Min.
784
-10
-10
2.7
1.3
1.2
1.2
2.5
80
65
82
2
Electrical characteristics
O
O
= 1.2 V, C1 = 4.7 µF,
1.1 V
Typ.
0.16
800
150
1.5
0.2
0.1
0.1
2.9
1.5
87
87
20
5
O
Max.
816
600
+10
+10
2.5
0.4
0.6
1.8
3.5
1
2
%V
%V
MHz
%V
%V
Unit
mV
mA
ΔI
ΔV
nA
µA
µA
°C
°C
%
%
%
Ω
Ω
V
V
A
V
A
7/18
O
O
O
I
O
O
/
/