BA09ST Rohm Semiconductor, BA09ST Datasheet - Page 10

• Manufacturer Part Number: BA09ST
• Description: IC REGULATOR LDO 9V 1A TO220FP-5
• Manufacturer: Rohm Semiconductor

Specifications of BA09ST

• Regulator Topology: Positive Fixed
• Voltage - Output: 9V
• Voltage - Input: 9 ~ 25 V
• Number Of Regulators: 1
• Current - Output: 1A (Max)
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: TO-220-5 Full Pack (Straight Leads)
• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 25 V
• Output Voltage: 9 V
• Output Type: Fixed
• Output Current: 1 A
• Line Regulation: 100 mV
• Load Regulation: 150 mV
• Maximum Power Dissipation: 2 W
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Dropout (typical): -
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Regulator ICs
N
! ! ! ! Electrical characteristic curves
(Pin A)
P
25
20
15
10
5
+
0
(1)22.0
(2)11.0
(3)6.5
(4)2.0
Fig. 7 Thermal derating curves
AMBIENT TEMPERATURE : Ta(˚C)
25
P substrate
(Pin A)
GND
50
Resistor
(1) Infinite heat sink
(2) Alumina PCB, 100×100×2 mm
(3) Alumina PCB, 50×50×2 mm
(4) IC alone
(TO220FP-5)
N
75
Parasitic elements
The example of a simple architecture of bipolar IC
GND
P
Parasitic elements
100
125
P
2
+
2
150
N
12.5
7.5
2.5
10
(Pin B)
5
Other approaching
elements
Parasitic elements
0
Fig.8 Thermal derating curves
N
(2)1.0
(1)10.0
AMBIENT TEMPERATURE : Ta (ºC)
P
25
+
(Pin B)
C
50
(1) Infinite heat sink is used θj-c=12.5 (ºC/W)
(2) IC simple substance θj-a=125.0 (ºC/W)
(TO252-5)
75
Transistor (NPN)
P substrate
B
B
E
N
N
100
GND
P
GND
E
C
125
BAΟΟST / BAΟΟSFP series
150
Parasitic elements
P
+
N
6
5
4
3
2
1
0
25
GND
JUNCTION TEMPERATURE : Tj (˚C)
50
Fig.9 Thermal cutoff circuit
75
characteristics
100
V
BA05ST
125
CC
=10V I
150
OUT
175
=0
10/11
200