The REG710 is a switched capacitor voltage converterthat produces a regulated, low-ripple output voltage from an unregulated input voltage

REG710-27

Manufacturer Part NumberREG710-27
DescriptionThe REG710 is a switched capacitor voltage converterthat produces a regulated, low-ripple output voltage from an unregulated input voltage
ManufacturerTexas Instruments
REG710-27 datasheet
 


Specifications of REG710-27

Iout(max)(a)0.03Iq(typ)(ma)0.065
Switching Frequency(max)(khz)1000Vin(min)(v)1.8
Vin(max)(v)5.5Vout(min)(v)2.7
Vout(max)(v)2.7Preset Vout(v)2.7
Efficiency(typ)(%)90TopologyBuck-Boost
Operating Temperature Range(c)-40 to 85Pin/package6SOT-23
Regulated Outputs(#)1  
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PROTECTION
The regulator has thermal shutdown circuitry that
protects it from damage caused by overload
conditions. The thermal protection circuitry disables
the output when the junction temperature reaches
approximately +160°C, allowing the device to cool.
When
the
junction
temperature
approximately
+140°C,
the
output
automatically reenabled. Continuously running the
regulator
into
thermal
shutdown
reliability. The regulator also provides current limit to
protect itself and the load.
SHUTDOWN MODE
The EN pin enables the IC when pulled high and
places it into energy-saving shutdown mode when
pulled low. When in shutdown mode, the output is
disconnected from the input and the quiescent current
is reduced to 0.01 A typical. This shutdown mode
functionality is only valid when V
minimum recommended operating voltage. The EN
pin cannot be left floating and must be actively
terminated either high or low.
CAPACITOR SELECTION
For minimum output voltage ripple, the output
capacitor C
should be a ceramic, surface-mount
OUT
type. Tantalum capacitors generally have a higher
effective series resistance (ESR) and may contribute
to higher output voltage ripple. Leaded capacitors
also increase ripple due to the higher inductance of
the package itself. To achieve best operation with low
input voltage and high load current, the input and
MANUFACTURER
PART NUMBER
C1206C255K8RAC
Kemet
C1206C224K8RAC
ECJ−2YBOJ225K
Panasonic
ECJ−2VBIC224K
ECJ−2VBIC104
EMK316BJ225KL
Taiyo Yuden
TKM316BJ224KF
Copyright © 2001–2009, Texas Instruments Incorporated
SBAS221G – DECEMBER 2001 – REVISED JANUARY 2009
pump capacitors (C
also be surface-mount ceramic types. In all cases,
X7R or X5R dielectric are recommended. See the
typical operating circuit shown in
component values.
cools
to
circuitry
is
Enable
can
degrade
V
IN
is above the
Figure 20. Typical Operating Circuit
IN
With light loads or higher input voltage, a smaller
0.1 F pump capacitor (C
and output capacitors (C
can be used. To minimize output voltage ripple,
increase the output capacitor, C
larger.
The capacitors listed in
REG710. This table is only a representative list of
compatible parts.
Table 1. Suggested Capacitors
DIELECTRIC
VALUE
TOLERANCE
2.2 F
±10%
0.22 F
±10%
2.2 F
±10%
0.22 F
±10%
0.1 F
±10%
2.2 F
±10%
0.22 F
±10%
Product Folder Link(s):
REG710
REG710
and C
, respectively) should
IN
PUMP
Figure 20
C
PUMP
0.22mF
4
6
3
1
5
V
OUT
REG710
C
C
IN
OUT
2.2mF
2.2mF
GND
2
) and smaller 1 F input
PUMP
and C
, respectively)
IN
OUT
, to 10 F or
OUT
Table 1
can be used with the
RATED
PACKAGE
WORKING
MATERIAL
SIZE
VOLTAGE
X7R
1206
10V
X7R
1206
10V
X5R
805
6.3V
X7R
805
16V
X7R
805
16V
X7R
1206
16V
X7R
1206
25V
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