General view

ROB304

ICCE

Year
Unknown
Category
Components
Type
Integrated circuits
Documentation score
1/5
Last edited
06 OCT 2026

Specifications

Function
negative voltage stabilizer
Package
TO-100
Max. internal power dissipation (Pdi)
500 mW
Max. input voltage (VI)
−40 V
Max. input–output voltage differential (VI − VO max)
−40 V
Input voltage range (VIR)
−40…−8 V
Output voltage range (VOR)
−30…−0.035 V
Input–output voltage differential (VI − VO)
−0.5…−40 V
Line regulation (KU)
0.056…0.1%
Load regulation (KL)
1…5 mV
Temperature stability (KT)
0.3…1%
Quiescent current (IB)
1.7…5 mA
Short-circuit current limit (Ios)
25 mA
Output noise voltage (VNO)
0.067% VO
Ripple rejection (RR)
0.2…1 mV/V

Sources: [1][3]

Description

The ROB304 is a negative voltage stabilizer, an analog integrated circuit listed in the Agenda radioelectronistului (2nd edition, 1989) among the integrated circuits made in Romania by ICCE (CCSIT-CE), in a TO-100 package [1]. Its pinout is in the Gallery.

Coded as (Romanian system, internal CCSIT-CE code) [2]:

Part Meaning
RO manufacturer’s code: RO (Romania)
B bipolar integrated circuit
304 identification number

The Agenda radioelectronistului (2nd edition, 1989) gives the parameters of the ROB304 in the table of DC voltage stabilizers made in Romania by IPRS Băneasa and CCSIT-CE (section 35.3) [3]: absolute maximum ratings and electrical characteristics over the full temperature range; they are in the specifications.

Notes on the table of section 35.3 [3]: Values printed with „<” (maximum) or „>” (minimum) are given here without the sign: „<” for Ios. KU, KL and KT are given with the units printed in the table (the column headings give % VO). The column of the minimum output current gives, where marked with a footnote, the quiescent current IB.

Gallery

ICCE ROB304: PinoutNo image available
Pinout

Documents

No documents available yet.

References

  1. [1]N. Drăgulănescu – „Agenda radioelectronistului”, 2nd edition, Editura Tehnică, 1989, section 35.2 „Circuite integrate analogice – producător: CCSIT-CE”, p. 600
  2. [2]N. Drăgulănescu – „Agenda radioelectronistului”, 2nd edition, Editura Tehnică, 1989, section 26.7 „Sistemul românesc (codul intern CCSIT-CE)”, p. 486
  3. [3]N. Drăgulănescu – „Agenda radioelectronistului”, 2nd edition, Editura Tehnică, 1989, section 35.3 „Parametrii caracteristici ai unor circuite integrate analogice”, table C „Stabilizatoare de tensiune continuă produse în R.S.R.”, p. 618