LM2775_15 Datasheet, PDF (1/27 Pages) Texas Instruments – LM2775 Switched Capacitor 5-V Boost Converter

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LM2775 Switched Capacitor 5-V Boost Converter
LM2775
SNVSA57 – MAY 2015
1 Features
•1 2.7-V to 5.5-V Input Range
• Fixed 5-V Output
• 200-mA Output Current
• Inductorless Solution: Only Requires 3 Small
Ceramic Capacitors
• Shutdown Disconnects Load from V_IN
• Current Limit and Thermal Protection
• 2-MHz Switching Frequency
• PFM Operation During Light Load Currents (PFM
pin tied high)
2 Applications
• USB OTG
• HDMI Power
• Portable Electronics
2.7 V to 5.5 V
Typical Application Circuit
2.2 2F
LM2775
VIN
VOUT
EN
C1+
PFM
C1-
5 V @ up to 200 mA
1 2F
2.2 2F
OUTDIS
GND
3 Description
The LM2775 is a regulated switched-capacitor
doubler that produces a low-noise output voltage. The
LM2775 can supply up to 200 mA of output current
over a 3.1-V to 5.5-V input range, as well as up to
125 mA of output current when the input voltage is as
low as 2.7 V. At low output currents, the LM2775 can
reduce its quiescent current by operating in a pulse
frequency modulation (PFM) mode. PFM mode can
be enabled or disabled by driving the PFM pin to high
or low. Additionally, when the LM2775 is in shutdown,
the user can chose to have the output voltage pulled
to GND or left in a high impedance state by setting
the OUTDIS pin high or low.
The LM2775 has been placed in TI's 8-pin WSON, a
package with excellent thermal properties that keeps
the part from overheating under almost all rated
operating conditions.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LM2775
WSON (8)
2.00 mm × 2.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
space
space
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Load Regulation
5.04
5.02
5.00
4.98
4.96
4.94
4.92
4.90
1E-5
T_A = -40°C
T_A = +25°C
T_A = +85°C
0.0001
0.001
0.01
I_OUT (A)
0.05
0.2 0.5
D003
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.