BA3259HFP_11 Datasheet, PDF (1/11 Pages) Rohm – Secondary Dual-Output (Fixed/Variable) LDO Regulators

Secondary LDO Regulators
Secondary Dual-Output
(Fixed/Variable) LDO Regulators
BA3259HFP,BA30E00WHFP
No.11026EBT02
●Description
The BA3259HFP and BA30E00WHFP are 2-output, low-saturation regulators. These units have both a 3.3 V fixed output as
well as a variable output with a voltage accuracy of ±2%, and incorporate an overcurrent protection circuit to prevent IC
destruction due to output shorting along with a TSD (Thermal Shut Down) circuit to protect the IC from thermal destruction
caused by overloading.
●Features
1) Output voltage accuracy: ± 2%.
2) Reference voltage accuracy: ± 2%
3) Output current capacity: 1 A (BA3259HFP), 0.6 A (BA30E00WHFP)
4) Ceramic capacitor can be used to prevent output oscillation (BA3259HFP)
6) Low dissipation with two voltage input supported (BA30E00WHFP)
7) Built-in thermal shutdown circuit
8) Built-in overcurrent protection circuit
●Applications
Available to all commercial devices, such as FPD, TV, and PC sets besides DSP power supplies for DVD and CD sets.
●Product Lineup
Part Number
BA3259HFP
BA30E00WHFP
Output voltage Vo1 Output voltage Vo2 Output Current Io1 Output Current Io2
3.3 V
0.8 V to 3.3 V
1 A max
1 A max
3.3 V
0.8 V to 3.3 V
0.6 A max
0.6 A max
Package
HRP5
HRP7
●Absolute Maximum Ratings
BA3259HFP
Parameter
Symbol
Ratings
Units
BA30E00WHFP
Parameter
Symbol
Applied voltage
Vcc
15 ^*1
V
Applied voltage
Vcc
Power dissipation
Pd
2300 ^*2
mW Power dissipation
Pd
Operating
temperature range
Topr
0 to 85
℃
Operating
temperature range
Topr
Ambient storage
temperature range
Tstg
−55 to 150
℃
Ambient storage
temperature range
Tstg
Maximum junction
temperature
Tjmax
150
℃
Maximum junction
temperature
Tjmax
*1 Must not exceed Pd.
*2 Derated at 18.4 mW/℃ at Ta>25℃ when mounted on a glass epoxy board (70 mm  70 mm  1.6 mm).
Ratings
18 ^*1
2300 ^*2
−25 to 105
−55 to 150
150
Units
V
mW
℃
℃
℃
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2011.03 - Rev.B