Datasheet

LM2825
SNVS127C –MAY 1997–REVISED APRIL 2013 www.ti.com
LM2825-12 Electrical Characteristics
(1)
Specifications with standard type face are for T
A
= 25°C, and those with boldface type apply over full Operating
Temperature Range. Test Circuit, see Figure 17.
Symbol Parameter Conditions LM2825-12 Units
(Limits)
Typical
(2)
Limit
(3)
V
OUT
Output Voltage 15V ≤ V
IN
≤ 40V, 0.1A ≤ I
LOAD
≤ 0.75A 12.0 V
11.52/11.40 V(min)
12.48/12.60 V(max)
Line Regulation 15V ≤ V
IN
≤ 40V 8.5 mV
I
LOAD
= 100 mA
Load Regulation 0.1A ≤ I
LOAD
≤ 0.75A 12 mV
V
IN
= 24V
Output Ripple Voltage V
IN
= 24V, I
LOAD
= 1A 100 mV p-p
η Efficiency V
IN
= 24V, I
LOAD
= 0.5A 87 %
(1) When the LM2825 is used as shown in Figure 17 test circuit, system performance will be as shown in Electrical Characteristics.
(2) Typical numbers are at 25°C and represent the most likely norm.
(3) All limits ensured at room temperature (standard type face) and at temperature extremes (bold type face) when output current is limited
to the value given in the temperature derating curves. See the Application Information section for curves. All limits at temperature
extremes are ensured using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing
Quality Level (AOQL).
LM2825-ADJ Electrical Characteristics
(1)
Specifications with standard type face are for T
A
= 25°C, and those with boldface type apply over full Operating
Temperature Range. Test Circuit, see Figure 18.
Symbol Parameter Conditions LM2825-ADJ Units
(Limits)
Typical
(2)
Limit
(3)
V
ADJ
Adjust Pin Voltage 4.5V ≤ V
IN
≤ 40V, 0.1A ≤ I
LOAD
≤ 1A 1.230 V
1.23V ≤ V
OUT
≤ 8V 1.193/1.180 V(min)
1.267/1.280 V(max)
η Efficiency V
IN
= 12V, I
LOAD
= 0.5A 74 %
V
OUT
Programmed for 3V. See Circuit of Figure 18
(1) When the LM2825 is used as shown in Figure 18 test circuit, system performance will be as shown in Electrical Characteristics.
(2) Typical numbers are at 25°C and represent the most likely norm.
(3) All limits ensured at room temperature (standard type face) and at temperature extremes (bold type face) when output current is limited
to the value given in the temperature derating curves. See the Application Information section for curves. All limits at temperature
extremes are ensured using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing
Quality Level (AOQL).
LM2825H-ADJ Electrical Characteristics
(1)
Specifications with standard type face are for T
A
= 25°C, and those with boldface type apply over full Operating
Temperature Range. Test Circuit, see Figure 18.
Symbol Parameter Conditions LM2825H-ADJ Units
(Limits)
Typical
(2)
Limit
(3)
V
ADJ
Adjust Pin Voltage 9V ≤ V
IN
≤ 40V, 0.1A ≤ I
LOAD
≤ 0.55A 1.230 V
7V ≤ V
OUT
≤ 15V 1.193/1.180 V(min)
1.267/1.280 V(max)
η Efficiency V
IN
= 24V, I
LOAD
= 0.5A 87 %
V
OUT
Programmed for 12V. See Circuit of Figure 18
(1) When the LM2825 is used as shown in Figure 18 test circuit, system performance will be as shown in Electrical Characteristics.
(2) Typical numbers are at 25°C and represent the most likely norm.
(3) All limits ensured at room temperature (standard type face) and at temperature extremes (bold type face) when output current is limited
to the value given in the temperature derating curves. See the Application Information section for curves. All limits at temperature
extremes are ensured using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing
Quality Level (AOQL).
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