BH28RB1WGUT-E2 Rohm Semiconductor, BH28RB1WGUT-E2 Datasheet - Page 4

• Manufacturer Part Number: BH28RB1WGUT-E2
• Description: IC REG LDO 2.8V 150MA 4-VCSP
• Manufacturer: Rohm Semiconductor

Specifications of BH28RB1WGUT-E2

• Regulator Topology: Positive Fixed
• Voltage - Output: 2.8V
• Voltage - Input: Up to 5.5V
• Voltage - Dropout (typical): 0.1V @ 100mA
• Number Of Regulators: 1
• Current - Output: 150mA (Max)
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 4-VCSP
• Primary Input Voltage: 3.8V
• Output Voltage: 2.8V
• Dropout Voltage Vdo: 25mV
• No. Of Pins: 4
• Output Current: 150mA
• Voltage Regulator Case Style: VCSP
• Operating Temperature Range: -40°C To +85°C
• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 5.5 V
• Output Type: Fixed
• Dropout Voltage (max): 150 mV
• Line Regulation: 20 mV
• Load Regulation: 2 mV
• Voltage Regulation Accuracy: 1 %
• Maximum Power Dissipation: 0.53 W
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Output Voltage Fixed: 2.8V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: BH28RB1WGUT-E2TR

Fig. 18 Load Response (Co = 1.0 μF)
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BH□□RB1WGUT series
www.rohm.com
Fig. 12 Output Voltage vs Temperature
1.60
1.55
1.50
1.45
1.40
80
70
60
50
40
30
20
10
Fig. 21 Output Voltage Rise Time
100
-50
VOUT
(BH15RB1WGUT)
STBY
VOUT
Fig. 15 Ripple Rejection
-25
Co = 1 μF
(BH15RB1WGUT)
(BH15RB1WGUT)
(BH15RB1WGUT)
1 k
IOUT = 1 mA → 30 mA
Frequency f[Hz]
0
Temp[ ℃ ]
Co = 2.2 μF
25
10 k
Co=1.0μF
Io=10mA
IOUT=1mA
50
1 V/div
R
50 μs/div
50 mV/div
100 μs/div
100 k
L
75
= 1.5 kΩ
1 V/div
100
1M
Fig. 19 Load Response (Co = 1.0 μF)
Fig. 13 Output Voltage vs Temperature
2.90
2.85
2.80
2.75
2.70
80
70
60
50
40
30
20
10
Fig. 22 Output Voltage Rise
-50
100
STBY
VOUT
VOUT
Fig. 16 Ripple Rejection
Co = 1 μF
(BH28RB1WGUT)
(BH28RB1WGUT)
-25
(BH28RB1WGUT)
(BH28RB1WGUT)
1 k
IOUT = 1 mA → 30 mA
Frequency f[Hz]
0
Time
Temp[ ℃ ]
10 k
Co = 2.2 μF
25
4/8
1 V/div
Co=1.0μF
IOUT=1mA
Io=10mA
50
R
100 μs/div
L
100 k
= 2.8 kΩ
50 μs/div
50 mV/div
1 V/div
75
1M
100
Fig. 14 Output Voltage vs Temperature
Fig, 20 Load Response (Co = 1.0 μF)
3.40
3.35
3.30
3.25
3.20
80
70
60
50
40
30
20
10
Fig. 23 Output Voltage Rise Time
-50
100
VOUT
Fig. 17 Ripple Rejection
STBY
VOUT
(BH33RB1WGUT)
-25
Co = 1 μF
(BH33RB1WGUT)
(BH33RB1WGUT)
(BH33RB1WGUT)
1 k
Frequency f[Hz]
0
IOUT = 1 mA → 30 mA
Technical Note
2011.01 - Rev.C
Temp[ ℃ ]
Co=1.0μF
Io=10mA
10 k
25
Co = 2.2 μF
50
1 V/div
IOUT=1mA
100 k
R
50 mV/div
L
100 μs/div
50 μs/div
= 3.3 kΩ
1 V/div
75
1M
100