Transistor l350k

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LM150/250 LM350
THREE-TERMINAL 3 A ADJUSTABLE VOLTAGE REGULATORS

. . . . . . .

GUARANTEED 3A OUTPUT CURRENT ADJUSTABLE OUTPUT DOWN TO 1.2V LINE REGULATION TYPICALLY 0.005% /V LOAD REGULATION TYPICALLY 0.1% GUARANTEED THERMAL REGULATION CURRENT LIMIT CONSTANT WITH TEMPERATURE STANDARD 3-LEAD TRANSISTOR PACKAGE

TO3 K SUFFIX (Steel Can)

ORDER CODE
PART NUMBER LM150 LM250 LM350TEMPERATURE RANGE -55 C to + 150 C -25 oC to + 150 oC 0 oC to + 125 oC
o o

PACKAGE K • • •

EXAMPLE: LM150K

PIN CONNECTION (bottom view)

Case is output

March 1993

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LM150-LM250-LM350
ABSOLUTE MAXIMUM RATING
Symbol Ptot Toper Power Dissipation Operating Junction Temperature Range LM150 LM250 LM350 Parameter Value Internally Limited 35 -55 to 150 -25 to 150 0 to 125 -65 to 150 300Unit W V
o

VI - VO Input-Output Voltage DIfferential

C

Tstg Tlead

Storage Temperature Range Lead Temperature (Soldering, 10 seconds)

o o

C C

THERMAL CHARACTERISTICS
Symbol Rth(j-c) Rth(j-a) Parameter Typical Junction-Case Thermal Resistance Max Junction-Ambient Thermal Resistance Value 1.5 35 Unit
o o

C/W C/W

SCHEMATIC DIAGRAM

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LM150-LM250-LM350
ELECTRICALCHARACTERISTICS LM150: -55 oC ≤ Tj ≤ 150 oC, VI - VO = 5V, IO = 1.5A LM250: -25 oC ≤ Tj ≤ 150 oC, VI - VO = 5V, IO = 1.5A LM350: 0 oC ≤ Tj ≤ 150 oC, VI - VO = 5V, IO = 1.5A Although power dissipation is internally limited, these specifications apply to power dissipation up to 30W (unless otherwise specified).
Symbol KVI KVO Parameter Line Regulation - (note 1) Tamb = 25 oC, 3 V ≤ (VI - VO) ≤ 35 VLoad Regulation Tamb = 25 oC, 10 mA ≤ IO ≤ 3 A VO ≤ 5V - (note 1) VO ≥ 5V - (note 1) Thermal Regulation (pulse = 20 ms) Adjustment Pin Current Adjustment Pin Current Change 10 mA ≤ IL ≤ 3 A, 3 V ≤ (VI - VO) ≤ 35 V Reference Voltage 3V ≤ (VI - VO) ≤ 35 V, 10 mA ≤ IO ≤ 3A, P ≤ 30W Line Regulation - (note 1) 3 V ≤ (V I - VO) ≤ 35 V Load Regulation 10 mA ≤ IO ≤ 3 A VO ≤ 5V - (note 1) VO ≥ 5V - (note1) Temperature Stability (Tmin ≤ Tj ≤ Tmax) Minimum Load Current (VI - VO ≤ 35 V) Current Limit (VI - VO ≤ 10 V) DC VI - VO = 30 V RMS Output Noise, % of VO (Tamb = 25 oC, 10 Hz ≤ f ≤ 10 KHz) Ripple Rejection Ratio VO = 10 V, f = 120 Hz Cadi = 10 µF Long Term Stability (Tamb = 125 oC) LM150-LM250 Min. Typ. Max. 0.005 0.01 Min. LM350 Typ. Max. 0.005 0.03 Unit %/V

Iadj ∆Iadj v(ref) KVI KVO

50.1 0.002 50 0.2 1.19 1.24 0.02

15 0.3 0.01 100 5 1.29 0.05 1.19

5 0.1 0.002 50 0.2 1.24 0.02

25 0.5 0.02 100 5 1.29 0.05

mV % %/W µA µA V %/V

KVT IO(min) IO(max)

20 0.3 1 3.5 3 4.5 1 0.001

50 1 5 3

20 0.3 1 3.5 4.5 1 0.001

70 1.5 10

mV % % mA A

% dB

Rvf

66

KVH

65 86 0.3

66 1

65 86 0.3

1

%

Note 1 : Regulation is measured at constantjunction temperature. Changes in output voltage due to heating effects are taken into account separately by thermal rejection.

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LM150-LM250-LM350
TYPICAL APPLICATIONS + 1.2V to + 25V ADJUSTABLE REGULATOR
LM350

Since the 50µA current from the adjustment terminal represents an error term, the LM350 was designed to minimize Iadj and make it very constant with line and load changes. To dothis, all quiescent operating current is returned to the output establishing a minimum load current requirement. If there is insufficient load on the output, the output will rise. EXTERNAL CAPACITORS An input bypass capacitor is recommended. A 0.1µF disc or 1µF solid tantalum on the input is suitable input by passing for almost all applications. The device is more sensitive to the absence of inputbypassing when adjustment or output capacitors are used byt the above values will eliminate the possibility of problems. The adjustment terminal can be bypassed to ground on the LM350 to improve ripple rejection. This bypass capacitor prevents ripple form being amplified as the output voltage is increased. With a 10µF bypass capacitor 75dB ripple rejection is obtainable at any output level....
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