ROHM BAOOLBSG

Regulator ICs
Super-mini package regulator IC
BALBSG series
The BALBSG (the “” indicates the output voltage value) is a low-saturation series regulator IC employing
the super-mini mold package of the SMP5 (2916 package). Equipped with a power-saving function that reduces current
consumption, it also offers outstanding ripple rejection and other characteristics, and is ideal for cellular telephones and
other compact telephones.
Applications
Residential / industrial device power supplies for cellular
telephones such as the CDMA and GSM, and for other
portable communication devices
Features
1) Internal output transistor (Io = 150mA)
2) Internal temperature protection circuit
3) Power-saving function enables designs with low current consumption
4) High level of ripple rejection (R.R. = 66dB)
5) SMP5 super-mini package enables space-saving
designs
6) Low I / O voltage differential (90mV Typ. at Io =
50mA)
Super-mini regulator lineup
Absolute maximum ratings (Ta = 25°C)
Recommended operating conditions (Ta = 25°C)
381
Regulator ICs
Block diagram
382
BALBSG series
Regulator ICs
BALBSG series
Pin descriptions
Input / output circuits
383
Regulator ICs
Electrical characteristics
BA028LBSG (unless otherwise noted, Ta = 25°C, VCC = 3.8V)
384
BALBSG series
Regulator ICs
BALBSG series
BA030LBSG (unless otherwise noted, Ta = 25°C, VCC = 4.0V)
385
Regulator ICs
BA032LBSG (unless otherwise noted, Ta = 25°C, VCC = 4.2V)
386
BALBSG series
Regulator ICs
BALBSG series
BA038LBSG (unless otherwise noted, Ta = 25°C, VCC = 4.8V)
387
Regulator ICs
Application example
Electrical characteristic curves (BA030LBSG)
388
BALBSG series
Regulator ICs
BALBSG series
External dimensions (Units: mm)
389