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NTE1901

Integrated Circuit Negative Adjustable Voltage Regulator, –1.2V to –37V, 100mA

NTE Electronics 

Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)

Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited

Input–Output Voltage Differential, VI – VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V

Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +125°C

Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C

Lead Temperature (During Soldering, 10sec), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C

Electrical Characteristics: (Note 1 unless otherwise specified)

Parameter

Symbol

Test Conditions

Min Typ Max Unit

Line Regulation

RegLine TA = +25°C, 3V ≤ (VIN – VO) ≤ 40V, Note 2 – 0.01 0.04 %/V

3V ≤ (VIN – VO) ≤ 40V, Note 2

– 0.02 0.07 %/V

Load Regulation

Thermal Regulation

RegLoad

TA = +25°C, 5mA ≤ IO ≤ 100mA, Note 2

5mA ≤ IO ≤ 100mA, Note 2

TA = +25°C, 10ms Pulse

– 0.1 0.5 %

– 0.1 0.5 %

– 0.04 0.2 %/W

Adjustment Pin Current

IAdj

– 50 100 µA

Adjustment Pin Current Change

Reference Voltage

IAdj 5mA ≤ IL ≤ 100mA, 3V ≤ (VIN – VO) ≤ 40V

–

0.2 5.0 µA

Vref 5mA ≤ IL ≤ 100mA, 3V ≤ (VIN – VO) ≤ 40V, 1.20 1.25 1.30 V

P ≤ 625mW, Note 3

Temperature Stability

TS –25°C ≤ TJ ≤ +125°C

– 0.65 – %

Minimum Load Currnt

MaximumOutput Current Limit

IL(min)

Imax

(VIN – VO) ≤ 40V

3V ≤ (VIN – VO) ≤ 15V

3V ≤ (VIN – VO) ≤ 13V

– 3.5 5.0 mA

– 2.2 3.5 mA

100 200 300 mA

(VIN – VO) ≤ 40V

25 50 150 mA

RMS Output Noise, % of VOUT N TA = +25°C, 10Hz ≤ f ≤ +10kHz

– 0.003 – %

Ripple Rejection Ratio

Long Term Stability

RR VOUT = –10V, f = 120Hz, CADJ = 0

CADJ = 10µF

S TJ = +125°C, 100 Hours

– 65 – dB

66 80 – dB

– 0.3 1.0 %

Note 1. Unless otherwise noted, these specifications apply: –25° ≤ TJ ≤ +125°C, VIN – VOUT = 5V,

IOUT = 40mA, and IMAX = 100mA. Although power dissipation is internally limited, these

specifications are applicable for power dissipations up to 625mW.

Note 2. Regulation is measured at constant junction temperature, using pulse testing with low duty

cycle. Changes in output voltage due to heating effects are covered under the specifications

for thermal regulation.

Note 3. Thermal resistance o the TO92 package is 180°C/W junction to ambient with 0.4” leads from

a PC board and 160°C/W junction to ambient with 0.125” lead length to PC board.

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