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Bay Linear, Inc 2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com
B38C4X
Absolute Maximum Rating
Parameter
Symbol
Value
Unit
Supply Voltage
VDD
20
V
Switch Supply Voltage
VD
20
V
Output Current
IOUT
1A
A
Zener Current
VDD
30
mA
Current Sense Voltage
VISENSE
-0.3 to 5.5
V
Feedback Voltage
VFB
-0.3 to 5.5
V
Power Dissipation
PD
1
W
Storage Temperature Range
T
-65 to 150
°C
Lead Temperature (Soldering 10 Sec.)
TL
300
°C
Electrical Characteristics
VDD = 15V (Note 4), RT = 11k, CT = 3.3nF, TA= -40°C to +85°C, unless otherwise specified
Parameter
Symbol
Conditions
MIN
TYP
MAX
UNIT
REFERENCE SECTION
Reference Voltage
VREF
TJ = 25 °C. IREF = 1mA
4.90
5.00
5.10
V
Line Regulation
REG (LINE)
12V
≤VDD≤18V, IO = 5µA
-
2
20
Load Regulation
REG(LOAD)
1mA
≤IREF≤20mA
-
1
25
mV
Short Circuit Output Current
ISC
T= 25
°C
-30
-80
-180
mA
OSCILLATOR SECTION
Oscillator Frequency
f
T= 25
°C
47
52
57
KHz
Frequency Change with Voltage
∆f/∆VCC
12V
≤VCC≤25V
-
0.05
1
%
Oscillator Amplitude
VOSC
-
1.6
2.3
VP-P
ERROR AMPLIFIER SECTION
Input Bias Current
IBIAS
-1
-0.1
1
µA
Input Voltage
VI(E>A)
V1 =2.5V
2.42
2.50
2.58
V
Open Loop Voltage Gain
GVO
2V
≤VO≤4V
65
90
-
dB
Power Supply Rejection Ratio
PSRR
12V
≤VCC≤25V
60
70
-
dB
Output Sink Current
ISINK
V2 =2.7V, V1 =1.1V
2
6
-
mA
Output Source Current
ISOURCE
V2=2.3, V1=5V
-0.5
-1.0
-
mA
High Output Voltage
VOH
V2=2.3, RL= 15Ω to GND
5
6
-
V
Low Output Voltage
VOL
V2=2.7, RL= 15Ω to pin 8
-
0.8
1.1
V
OUTPUT SECTION
ISINK = 20mA
Low Output Voltage
VOL
ISINK = 200mA
-
0.08
1.4
0.4
2.2
V
Source = 20mA
High Output Voltage
VOH
Source = 200mA
13
12
13.5
13.0
-
-
V
Rise Time
tR
TJ = 25 °C, CL=1nF (note3)
-
40
70
ns
Fall Time
tF
TJ = 25 °C, CL=1nF (note3)
-
30
50
ns
Note: Output Switch tests are performed under pulsed conditions to minimize power dissipation