scope:

This drawing forms a part of a one part - one part number documentation system (see 6.6 herein). Two product assurance classes consisting of military high reliability (device classes B, Q, and M) and space application (device classes S and V), and a choice of case outlines and lead finishes are available and are reflected in the Part or Identifying Number (PIN). Device class M microcircuits represent non-JAN class B microcircuits in accordance with 1.2.1 of MIL-STD-883, "Provisions for the use of MIL-STD-883 in conjunction with complaint non-JAN devices". When available, a choice of Radiation Hardness Assurance (RHA) levels are reflected in the PIN.

The PIN shall be as shown in the following example:

Device classes M, B, and S RHA marked devices shall meet the MIL-M-38510 specified RHA levels and shall be marked with the appropriate RHA designator. Device classes Q and V RHA marked devices shall meet the MIL-I-38535 specified RHA levels and shall be marked with the appropriate RHA designator. A dash (-) indicates a non-RHA device.

The device type(s) shall identify the circuit function as follows:

Device type Generic number Circuit function 01 LM1577-15 Positive, fixed,15-volt, step-up voltage regulator

The device class designator shall be a single letter identifying the product assurance level as follows:

Device class Device requirements documentation M Vendor self-certification to the requirements for non-JAN class B microcircuits in accordance with 1.2.1 of MIL-STD-883 B or S Certification and qualification to MIL-R-38510 Q or V Certification and qualification to MIL-I-38535

The case outline(s) shall be as designated in MIL-STD-1835 and as follows:

Outline letter Descriptive designator Terminals Package style X See figure 1 4 Can

The lead finish shall be as specified in MIL-R-38510 for classes M, B, and S or MIL-I-38535 for classes Q and V. Finish letter "X" shall not be marked on the microcircuit or its packaging. The "X" designation is for use in specifications when lead finishes A, B, and C are considered acceptable and interchangeable without preference.

Input voltage (V_IN)....................................... 45 V Output switch voltage (V_SWITCH)........................... 65 V Output switch current (I_SWITCH) 2/ ....................... 6.0 A Storage temperature range ................................. −65°C to +150°C Junction temperature (T_J).................................. +150°C Lead temperature (soldering, 10 seconds) .................. +260°C Power dissipation (P_D) .................................... Internally limited Thermal resistance, junction-to-case (Θ_JC)................ 1.5°C/W Thermal resistance, junction-to-ambient (Θ_JA).............. 35°C/W

Input voltage range (V_IN)................................. 3.5 V to 40 V Ambient operating temperature range (T_A).................. −55°C to +125°C Output switch voltage range (V_SWITCH)..................... 0 V to 60 V Output switch current (I_SWITCH)............................ ≤ 3.0 A

intended Use: