2
SCD8661 Rev B 1/7/09 Aeroflex Plainview
ABSOLUTE MAXIMUM RATINGS
PARAMETER RANGE UNITS
Lead temperature (soldering 10 Sec) 300 °C
Input-Output Voltage Differential -30 VDC
ESD 1.999 1/ KV
Operating Junction Temperature Range -55 to +150 °C
Storage Temperature Range -65 to +150 °C
1/ Meets ESD testing per MIL-STD-883, method 3015, Class 1C.
NOTICE: Stresses above those listed under "Absolute Maximums Rating" may cause permanent damage to the device. These are stress rating
only; functional operation beyond the "Operation Conditions" is not recommended and extended exposure beyond the "Operation
Conditions" may effect device reliability.
RECOMMENDED OPERATING CONDITIONS
PARAMETER RANGE UNITS
Output Voltage Range -1.25 to -27 VDC
Case Operating Temperature Range -55 to +125 °C
ELECTRICAL PERFORMANCE CHARACTERISTICS 1/
PARAMETER SYM CONDITIONS (P ≤PMAX)MIN MAX UNITS
Reference Voltage VREF -3V < (VIN - VOUT) < VDIFF MAX, 10mA < IOUT < IMAX -1.200 -1.300 V
Line Regulation 2/ -3V < (VIN - VOUT) < -27V, -0.05%/V
Load Regulation 2/10mA < IOUT < IMAX, VOUT < -5V
10mA < IOUT < IMAX, VOUT > -5V
-
-
50
1.0
mV
%
Thermal Regulation IOUT = 1.5A, (VIN - VOUT) = -13.3V, 20ms Pulse, 20W,
TC = +25°C -0.02%/W
Ripple Rejection V
OUT = -10V, f = 120Hz, CADJ = 10µF 66 - dB
Adjustment Pin Current IADJ - 100 µA
Adjustment Pin Current
Change
ΔIADJ 10mA < IOUT < IMAX -5
µA
-3V < (VIN - VOUT) < -27V - 5
Minimum Load Current 3/IMIN (VIN - VOUT) = -27V - 5 mA
(VIN - VOUT) < -10V - 3
Current Limit IMAX (VIN - VOUT) < -15V 1.5 - A
(VIN - VOUT) = -27V, TC = +25°C 0.24 -
Long Term Stability 3/TA = +125°C - 1 %
Thermal Resistance
(Junction to Case) 3/ΘJC -3°C/W
Notes:
1. Unless otherwise specified, these specifications apply for post radiation, (Vin - Vout) = 5V, Iout = 0.5A and -55°C < Tc < +125°C.
2. Regulation is measured at a constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to
heating effects are covered under the specification for thermal regulation. Measurements taken at the output lead must be adjusted for lead
resistance.
3. Not tested. Shall be guaranteed to the specified limits.