ADR293GR Analog Devices Inc, ADR293GR Datasheet - Page 12

• Manufacturer Part Number: ADR293GR
• Description: IC VREF PREC 5V 5MA OUT 8-SOIC
• Manufacturer: Analog Devices Inc
• Series: XFET®r

Specifications of ADR293GR

• Rohs Status: RoHS non-compliant
• Reference Type: Series
• Voltage - Output: 5V
• Tolerance: ±0.2%
• Temperature Coefficient: 30ppm/°C
• Voltage - Input: 6 ~ 15 V
• Number Of Channels: 1
• Current - Quiescent: 15µA
• Current - Output: 5mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Current - Cathode: -

ADR293
VOLTAGE REGULATOR FOR PORTABLE
EQUIPMENT
The ADR293 is ideal for providing a stable, low cost, and low
power reference voltage in portable equipment power supplies.
Figure 26 shows how the ADR293 can be used in a voltage
regulator that not only has low output noise (as compared to
switch mode design) and low power, but also a very fast
recovery after current surges. Some precautions should be taken
in the selection of the output capacitors. Too high an ESR
(effective series resistance) could endanger the stability of the
circuit. A solid tantalum capacitor, 16 V or higher, and an
aluminum electrolytic capacitor, 10 V or higher, are recom-
mended for C1 and C2, respectively. In addition, the path from
the ground side of C1 and C2 to the ground side of R1 should
be kept as short as possible.
Rev. C | Page 12 of 16
LEAD-ACID
CHARGER
BATTERY
INPUT
6V
Figure 26. Voltage Regulator for Portable Equipment
0.1µF
+
ADR293
GND
V
V
4
2
IN
OUT
402kΩ
1%
R1
6
2
3
OP20
402kΩ
1%
7
4
R2
6
510kΩ
R3
TANT
68µF
C1
IRF9530
+
+
5V, 100mA
C2
1000µF
ELECT