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BH18RB1WGUT-E2

P1-P3P4-P6P7-P9
1/8
www.rohm.com
2011.01 - Rev.C
© 2011 ROHM Co., Ltd. All rights reserved.
CMOS LDO Regulators for Portable Equipments
1ch 150mA
CMOS LDO Regulators
BH□□RB1WGUT series
●Description
The BH□□RB1WGUT series is a line of 150 mA output CMOS regulators that deliver a highly stable precision (± 1%) output
voltage. Proprietary ROHM technology enables a small load regulation of 2 mV and a dropout voltage of 100 mV.
At just 1.0 mm 1.04 mm, the new VCSP60N1 package is extremely compact, and the IC's enhanced protection circuits
contribute to improved end products characteristics.
●Features
1) High accuracy output voltage: ± 1%
2) Dropout voltage: 100 mV (at 100 mA)
3) Stable with ceramic capacitors
4) Low bias current: 34 μA
5) High ripple rejection ratio: 63 dB (Typ., 1 kHz)
6) Output voltage on/off control
7) Built-in overcurrent and thermal shutdown circuits
8) VCSP60N1 WL-CSP package : (1.0×1.04×0.6mm)
●Applications
Battery-driven portable devices, etc.
●Product line
150 mA BH□□RB1WGUT Series
Product name 1.5 1.8 2.5 2.8 2.9 3.0 3.1 3.3 Package
BH□□RB1WGUT
√ √ √ √ √ √ √ √ VCSP60N1
Model name: BH□□
RB1W□
a b
Symbol Description
a
Output voltage specification
□□ Output voltage (V) □□ Output voltage (V)
15 1.5 V (Typ.) 29 2.9 V (Typ.)
18 1.8 V (Typ.) 30 3.0 V (Typ.)
25 2.5 V (Typ.) 31 3.1 V (Typ.)
28 2.8 V (Typ.) 33 3.3 V (Typ.)
b Package GUT: VCSP60N1
No.11020ECT03
BH□□RB1WGUT series
Technical Note
2/8
www.rohm.com
2011.01 - Rev.C
© 2011 ROHM Co., Ltd. All rights reserved.
●Absolute maximum ratings
Parameter
Symbol Ratings Unit
Applied supply voltage
VMAX -0.3 to +6.5 V
Power dissipation
Pd 530
*1
mW
Operating temperature range
Topr -40 to +85 °C
Storage temperature range
Tstg -55 to +125 °C
*1: Reduce by 5.3 mW/C over 25C, when mounted on a glass epoxy PCB (7 mm 7 mm 0.8 mm).
●Recommended operating ranges (not to exceed Pd)
Parameter
Symbol Ratings Unit
Power supply voltage
V
IN 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 0.7
*2
1.0 — µF
The use of ceramic capacitors is
recommended.
Output capacitor CO 0.7
*2
1.0 — 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
*5
, STBY = 1.5 V, CIN = 1 µF, CO = 1 µF)
Parameter
Symbol
Limits
Unit
Conditions
Min. Typ. Max.
Output voltage 1 VOUT1
V
OUT
0.99
V
OUT
VOUT
1.01
V
IOUT = 1 mA, Ta = 25°C,
BH25RB1WGUT or higher
VOUT
- 25 mV
VOUT
+ 25 mV
I
OUT = 1mA, Ta = 25°C,
BH15, 18RB1WGUT
Output voltage 2 VOUT2
V
OUT
0.97
V
OUT
VOUT
1.03
V
IOUT = 1 mA
Ta = -40°C to 85°C
*3
Circuit current IGND — 34 72 µA
I
OUT = 0 mA
Ta = -40°C to 85°C
*3
Circuit current (STBY) ICCST — — 1.0 µA STBY = 0 V
Ripple rejection ratio RR — 63 — dB
VRR = -20 dBV, fRR = 1 kHz,
I
OUT = 10 mA
Dropout voltage VSAT — 100 150 mV
VIN = 0.98 VOUT, IOUT = 100 mA
(Excluding BH15, 18RB1WGUT)
Line regulation VDLI — 2 20 mV
I
OUT = 10 mA
V
IN = VOUT + 0.5 V to 5.5 V
*4
Load regulation VDLO — 2 30 mV IOUT = 1 mA to 100 mA
Overcurrent protection limit current ILMAX — 300 — mA VO = VOUT 0.98
Short current ISHORT — 40 — mA VO = 0 V
STBY pin current ISTBY 0.5 1.3 3.6 µA Ta = -40°C to 85°C
*3
STBY control voltage
ON VSTBH 1.2 — VIN V Ta = -40°C to 85°C
*3
OFF VSTBL -0.2 — 0.2 V Ta = -40°C to 85°C
*3
* This IC is not designed to be radiation-resistant.
*3: These specifications are guaranteed by design.
*4: For BH15, 18RB1WGUT, VIN = 3.0 V to 5.5 V.
*5: For BH15, 18RB1WGUT, VIN = 3.5 V.
BH□□RB1WGUT series
Technical Note
3/8
www.rohm.com
2011.01 - Rev.C
© 2011 ROHM Co., Ltd. All rights reserved.
●Typical characteristics
Fig. 1 Output Voltage vs Input Voltage
(BH15RB1WGUT)
Fig. 2 Output Voltage vs Input Voltage
(BH28RB1WGUT)
Fig. 3 Output Voltage vs Input Voltage
(BH33RB1WGUT)
Fig. 4 GND Current vs Input Voltage
(BH15RB1WGUT)
Fig. 5 GND Current vs Input Voltage
(BH28RB1WGUT)
Fig. 6 GND Current vs Input Voltage
(BH33RB1WGUT)
Fig. 7 Output Voltage vs Output Current
(BH15RB1WGUT)
Fig. 8 Output Voltage vs Output Current
(BH28RB1WGUT)
Fig. 9 Output Voltage vs Output Current
(BH33RB1WGUT)
Fig. 10 Dropout Voltage vs Output Current
(BH28RB1WGUT)
Fig. 11 Dropout Voltage vs Output Current
(BH33RB1WGUT)
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 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 VOUT[V]
0
10
20
30
40
50
60
012345
Input Voltage VIN[V]
GND Current IGND[µA]
0
10
20
30
40
50
60
012345
Input Voltage VIN[V]
GND Current IGND[µA]
0
10
20
30
40
50
60
012345
Input Voltage VIN[V]
GND Current IGND[µA]
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0 100 200 300 400
Output Current IOUT[mA]
Output Voltage VOUT[V]
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0 100 200 300 400
Output Current IOUT[mA]
Output Voltage VOUT[V]
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0 100 200 300 400
Output Current IOUT[mA]
Output Voltage VOUT[V]
0
50
100
150
200
0 50 100 150
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]
P1-P3P4-P6P7-P9

BH18RB1WGUT-E2

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LDO Voltage Regulators 1.8V
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