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BH29NB1WHFV-TR

P1-P3P4-P6P7-P9
1/8
www.rohm.com
2011.01 - Rev.B
© 2011 ROHM Co., Ltd. All rights reserved.
CMOS LDO Regulators for Portable Equipments
1ch 150mA
CMOS LDO Regulators
BH□□NB1WHFV series
●Description
The BH□□NB1WHFV series is a line of 150 mA output, high-performance CMOS regulators that deliver a high ripple
rejection ratio of 80 dB (Typ., 1 kHz). They are ideal for use in high-performance, analog applications and offer improved line
regulation, load regulation, and noise characteristics. Using the ultra-small HVSOF5 package, which features a built-in heat
sink, contributes to space-saving application designs.
●Features
1) High accuracy output voltage: ± 1%
2) High ripple rejection ratio: 80 dB (Typ., 1 kHz)
3) Stable with ceramic capacitors
4) Low bias current: 60 µA
5) Output voltage on/off control
6) Built-in overcurrent and thermal shutdown circuits
7) Ultra-small HVSOF5 power package
●Applications
Battery-driven portable devices, etc.
●Product line
150 mA BH□□NB1WHFV Series
Product name 2.5 2.8 2.85 2.9 3.0 3.1 3.3 Package
BH□□NB1WHFV √ √ √ √ √ √ √ HVSOF5
Model name: BH□□
NB1W□
a b
Symbol Description
a
Output voltage specification
□□ Output voltage (V) □□ Output voltage (V)
25 2.5 V (Typ.) 30 3.0 V (Typ.)
28 2.8 V (Typ.) 31 3.1 V (Typ.)
2J 2.85 V (Typ.) 33 3.3 V (Typ.)
29 2.9 V (Typ.)
b Package HFV: HVSOF5
No.11020EBT04
Technical Note
BH□□NB1WHFV series
2/8
www.rohm.com
2011.01 - Rev.B
© 2011 ROHM Co., Ltd. All rights reserved.
●Absolute maximum ratings
Parameter Symbol Ratings Unit
Applied power supply voltage VMAX −0.3 to +6.0 V
Power dissipation Pd 410
*1
mW
Operating temperature range Topr −40 to +85 °C
Storage temperature range Tstg −55 to +125 °C
*1: Reduce by 4.1 mW/C over 25C, when mounted on a glass epoxy PCB (70 mm 70 mm 1.6 mm).
●Recommended operating ranges (not to exceed Pd)
Parameter Symbol Ratings Unit
Power supply voltage VIN 2.5 to 5.5 V
Output current IOUT 0 to 150 mA
●Recommended operating conditions
Parameter Symbol
Ratings
Unit Conditions
Min. Typ. Max.
Input capacitor CIN 0.1
*2
— — µF
The use of ceramic
capacitors is recommended.
Output capacitor CO 2.2
*2
— — µF
The use of ceramic
capacitors is recommended.
*2 Make sure that the output capacitor value is not kept lower than this specified level across a variety of temperature, DC bias characteristic.
And also make sure that the capacitor value cannot change as time progresses.
●Electrical characteristics
(Unless otherwise specified, Ta = 25°C, V
IN = VOUT + 1.0 V, STBY = 1.5 V, CIN = 0.1 µF, CO = 2.2 µF)
Parameter Symbol
Limits
Unit Conditions
Min. Typ. Max.
Output voltage VOUT VOUT0.99 VOUT VOUT1.01 V
IOUT = 1 mA
Circuit current IGND — 60 100 µA
IOUT = 50 mA
Circuit current (STBY) ISTBY — — 1.0 µA
STBY = 0 V
Ripple rejection ratio RR — 80 — dB
VRR = −20 dBv, fRR = 1 kz,
I
OUT = 10 mA
Load response 1 LTV1 — 25 — mV
I
OUT = 1 mA to 30 mA
Load response 2 LTV2 — 25 — mV
I
OUT = 30 mA to 1 mA
Dropout voltage 1 VSAT1 — 80 150 mV
V
IN = 0.98 VOUT,
I
OUT = 30 mA
Dropout voltage 2 VSAT2 — 250 450 mV
V
IN = 0.98 VOUT,
I
OUT = 100 mA
Line regulation VDL1 — 1 20 mV
V
IN = VOUT + 0.5 V to 5.5 V,
I
OUT = 50 mA
Load regulation 1 VDLO1 — 6 30 mV
IOUT = 1 mA to 100 mA
Load regulation 2 VDLO2 — 9 90 mV
IOUT = 1 mA to 150 mA
Overcurrent protection
limit current
ILMAX — 250 — mA
V
O = VOUT 0.98
Short current ISHORT — 50 — mA
V
O = 0 V
STBY pull-down resistance RSTB 275 550 1100 kΩ
STBY control voltage
ON VSTBH 1.5 — VIN V
OFF VSTBL −0.3 — 0.3 V
* This IC is not designed to be radiation-resistant.
Technical Note
BH□□NB1WHFV series
3/8
www.rohm.com
2011.01 - Rev.B
© 2011 ROHM Co., Ltd. All rights reserved.
●Reference data
Fig.1 Output Voltage vs Input Voltage
(BH25NB1WHFV)
Fig.5 GND Current vs Input Voltage
(BH30NB1WHFV)
Fig.6 GND Current vs Input Voltage
(BH33NB1WHFV)
Fig.7 Output Voltage vs Output Current
(BH25NB1WHFV)
Fig.8 Output Voltage vs Output Current
(BH30NB1WHFV)
Fig.9 Output Voltage vs Output Current
(BH33NB1WHFV)
Fig.10 Dropout voltage vs Output Current
(BH25NB1WHFV)
Fig.11 Dropout voltage vs Output Current
(BH30NB1WHFV)
Fig.12 Dropout voltage vs Output Current
(BH33NB1WHFV)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
012345
Input Voltage VIN[V]
Output Voltage VOUT[V]
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
012345
Input Voltage VIN[V]
Output Voltage VO UT[V]
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
012345
Input Voltage VIN[V]
Output Voltage VOUT[V]
0
10
20
30
40
50
60
70
80
012345
Input Voltage VIN[V]
GND Current IGND[mA]
0
10
20
30
40
50
60
70
80
012345
Input Voltage VI N[V]
GND Current IGND[mA]
0
10
20
30
40
50
60
70
80
012345
Input Voltage VIN[V]
GND Current IGND[mA]
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0 50 100 150 200 250 300
Output Current IOUT[mA]
Output Voltage VOUT[V]
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0 50 100 150 200 250 300
Output Current IOUT [mA]
Output Voltage VOUT[V]
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0 50 100 150 200 250 300
Output Current IOUT[mA]
Output Voltage VOUT[V]
0.0
0.1
0.2
0.3
0.4
0.5
0 50 100 150
Output Current IOUT[mA]
Dropout Voltage VSAT[V]
0.0
0.1
0.2
0.3
0.4
0.5
050100150
Output Current IOUT[mA]
Dropout Voltage VSAT[V]
0.0
0.1
0.2
0.3
0.4
0.5
0 50 100 150
Output Current IOUT[mA]
Dropout Voltage VSAT[V]
Fig.2 Output Voltage vs Input Voltage
(BH30NB1WHFV)
Fig.3 Output Voltage vs Input Voltage
(BH33NB1WHFV)
Fig.4 GND Current vs Input Voltage
(BH25NB1WHFV)
P1-P3P4-P6P7-P9

BH29NB1WHFV-TR

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LDO Voltage Regulators 150MA 2.9V CMOS LDO Regulator
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