TPS63700_15 Datasheet, PDF (1/26 Pages) Texas Instruments – TPS63700 DC-DC Inverter

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TPS63700
SLVS530D – SEPTEMBER 2005 – REVISED OCTOBER 2015
TPS63700 DC-DC Inverter
1 Features
•1 Adjustable Output Voltage Down to –15 V
• 2.7-V to 5.5-V Input Voltage Range
• Up to 360-mA Output Current
• 1000-mA Typical Switch Current Limit
• Up to 84% Efficiency
• Typical 1.4-MHz Fixed-Frequency PWM
Operation
• Thermal Shutdown
• Typical –19-V Output Overvoltage Protection
• 1.5-μA Shutdown Current
• Small 3-mm × 3-mm SON-10 Package (DRC)
2 Applications
• Generic Negative Voltage Supply
• Small-to-Medium Size OLED Displays
• Bias Supply
Efficiency vs Output Current
90
V_IN = 3.6 V
V_IN = 5 V
80
70
V_IN = 3.3 V ^{VIN = 4.2 V}
60
3 Description
The TPS63700 is an inverting DC/DC converter
generating a negative output voltage down to –15 V
with output currents up to 360 mA, depending on
input-voltage to output-voltage ratio. With a peak
efficiency of 84%, the device is ideal for portable
battery-powered equipment. The input voltage range
of 2.7 V to 5.5 V allows the TPS63700 to be directly
powered from a Li-ion battery, from 3-cell NiMH/NiCd,
from a 3.3-V or 5-V supply rail.
The inverter operates with a fixed-frequency pulse
width modulation (PWM) control topology. The device
has an internal current limit, overvoltage protection,
and a thermal shutdown for highest reliability under
fault conditions.
A switching frequency of typically 1.4 MHz allows the
use of small external components enabling a small
solution size.
The TPS63700 comes in a small 3-mm × 3-mm SON-
10 package.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS63700
VSON (10)
3.00 mm x 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
50
40
30
20
10
0
0
VIN
2.7 V To 5.5 V
100
200
300
400
I_O − Output Current − mA
R1
C1
0.1 μF
Typical Application Schematic
TPS63700
VIN
VREF
EN
FB
C2
0.22 μF
PS_GND
OUT
D1
IN
SW
C4
10 μF
GND
COMP
PowerPAD
C6
4.7 nF
L1
4.7 μH
R2
R3
VOUT
−5 V
C5
22 μF
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.