TS3300
0.6-3V
IN
, 1.8-3.6V
OUT
, 3.5µA, High-Efficiency Boost + Output Load Switch
FEATURES
Combines Low-power Boost + Output Load
Switch
Boost Regulator
Input Voltage: 0.6V- 3V
Output Voltage: 1.8V- 3.6V
Efficiency: Up to 84%
No-load Input Current: 3.5µA
Delivers >100mA at 1.8V
BO
from 1.2V
BI
Boost Shutdown Control
No External Schottky Diode Required
Anti-Crush Capability
Prevents Input Voltage Collapse when
powered with Weak/High Impedance Power
Sources
Single-Inductor, Discontinuous Conduction
Mode Scheme with Automatic Peak Current
Adjustment
16-Pin, Low-Profile, Thermally-Enhanced
3mm x 3mm TQFN Package
DESCRIPTION
The TS3300 is a 1st-generation power management
product that combines a high-efficiency boost
regulator and an output load switch in one package.
The boost regulator operates from a supply voltage
as low as 0.6V and can deliver at least 75mA at
1.2V
BI
to 3V
BO
, an industry first.
The TS3300 includes an
anti-crush
TM
feature to
prevent the collapse of the input voltage to the boost
regulator when the input is a weak (high impedance)
source. If the input voltage drops below a determined
voltage threshold (settable by a resistor divider), the
boost regulator switching cycles are paused,
effectively limiting the minimum input voltage.
Anti-
crush
TM
is useful in applications where a buffer
capacitor at the boost’s output can service burst
loads, and the input source exhibits substantial
source impedance (such as an old battery, or at cold
temperatures).
The TS3300 is fully specified over the -40°C to +85°C
temperature range and is available in a low-profile,
thermally-enhanced 16-pin 3x3mm TQFN package
with an exposed back-side paddle. For best
performance, solder the exposed back-side paddle to
PCB ground.
APPLICATIONS
Coin Cell-Powered Portable Equipment
Single Cell Li-ion or Alkaline Powered Equipment
Solar or Mechanical Energy Harvesting
Wireless Microphones
Wireless Remote Sensors
RFID Tags
Blood Glucose Meters
Personal Health-Monitoring Devices
TYPICAL APPLICATION CIRCUIT
Efficiency vs Output Load Current
100
90 1.2V
BI
to 1.8V
BO
80
EFFICIENCY - %
70
60
50
40
30
20
10
L: LPS4018-103ML
0
1
0.01
0.1
I
BO
- mA
1.2V
BI
to 3V
BO
10
100
Page 1
© 2014 Silicon Laboratories, Inc. All rights reserved.
TS3300
ABSOLUTE MAXIMUM RATINGS
BI to GND ................................................................. -0.3V to V
BO
+0.1V
CCP................................................................................ -0.3V to +2.5V
BEN to GND ............................................................... -0.3V to V
BI
+0.3V
BI FB, BO FB to GND ...............................................-0.3V to V
BO
+0.3V
SW EN, REG EN, REG FB, REG OUT to GND .... -0.3V to V
REGIN
+0.3V
BO, REG IN to GND..................................................... -0.3V to +5.75V
LSW to GND ................................................................ -0.3V to +5.75V
Continuous Power Dissipation (T
A
= +70°C)
16-Pin TQFN (Derate at 17.5mW/°C above +70°C) ..... 1398mW
Operating Temperature Range ................................. -40°C to +85°C
Storage Temperature Range .................................. -65°C to +150°C
Lead Temperature (Soldering, 10s)...................................... +300°C
Electrical and thermal stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These
are stress ratings only and functional operation of the device at these or any other condition beyond those indicated in the operational sections
of the specifications is not implied. Exposure to any absolute maximum rating conditions for extended periods may affect device reliability and
lifetime.
PACKAGE/ORDERING INFORMATION
ORDER NUMBER
PART
CARRIER QUANTITY
MARKING
TS3300ITQ1633
3300I
TS3300ITQ1633T
Tape
& Reel
Tape
& Reel
-----
3000
Lead-free Program:
Silicon Labs supplies only lead-free packaging.
Consult Silicon Labs for products specified with wider operating temperature ranges.
Page 2
TS3300 Rev. 1.0
TS3300
ELECTRICAL CHARACTERISTICS
V
BI
= 1.2V, V
BO
= 3V, V
BEN
= GND, I
BO
= 20mA, L = 10µH, C
BI
=C
BO
= 22µF unless otherwise noted. Values are at T
A
= -40°C to +85°C unless
otherwise specified. Typical values are at T
A
=+25°C unless otherwise specified. Please see Note 1.
PARAMETER
Minimum Input Boost
Voltage
Maximum Input Boost
Voltage
Output Boost Voltage
Range
SYMBOL
V
BI_MIN
V
BI_MAX
V
BO
See Note 2.
No-Load Input Current
I
Q
-40°C<T
A
<+85°C
See Note 2.
Active-Mode
See Note 3.
@ BO
@ BI
@ BO
@ BI
@ BI
CONDITIONS
I
BO
= 0mA. T
A
=25ºC
Guaranteed by design
3
1.8
3.5
0.07
6
0.9
10.8
0.4
1
100
0.489
0.363
0.505
0.392
50
I
BO
=0mA
365
10
0.27
0.48
Measured from REGIN to
REGOUT. See Note 4.
V
IL
V
IH
0.9
V
BI
- 0.05
1.2
0.2
V
V
mV
Ω
0.521
0.425
µA
nA
V
V
mV
mA
mA
µA
3.6
MIN
TYP
0.6
MAX
0.75
UNITS
V
V
V
Output Load-Switch
Supply Current
Boost Shutdown Supply
Current
Boost Feedback Voltage
during operation
Anti-Crush Feedback
Voltage
Anti-Crush Feedback
Voltage Hysteresis
Inductor Peak Current
Inductor Valley Current
NMOS
On
Resistance
PMOS
LOAD
SWITCH
Boost Enable Threshold
I
REGIN
I
SHUTDOWN
V
BO FB
V
BI FB
V
BI FB_HYST
I
PK
I
V
R
ON
NMOS
R
ON
PMOS
R
ON
LOAD SWITCH
V
BEN
V
BEN_HYST
I
REGOUT
= 0mA, V
REG EN
= V
REGIN
V
BEN
= V
BI
T
A
=25°C
@ BI
Output voltage accuracy: ±4%
V
BI
≥
0.6V
200
Boost Enable Hysteresis
0.2 x V
REGIN
V
IL
(CMOS logic)
Output Load Switch
V
V
REG EN
Enable Threshold
V
IH
(CMOS logic)
0.8 x V
REGIN
Output Load Switch
100
mV
V
REG EN_HYST
Enable Hysteresis
BO FB Input Leakage
±0.1
±1
I
BO FB
Current
REGEN Input Leakage
10
I
REG EN
nA
Current
REGFB Input Leakage
±0.1
±1
I
REG FB
Current
Note 1:
All devices are 100% production tested at T
A
=+25°C and are guaranteed by characterization for T
A
=-40°C to +85°C, as specified.
Note 2:
I
BO
=0mA, V
BO FB
=0.6V.
Note 3:
Boost Only Circuit configuration. I
BO
=0mA. V
BI FB
=V
BI
. V
BI
=1.2V. V
BO
=3V.
Note 4:
V
SW EN
=V
REGIN
=V
BO
. V
REG EN
=GND.
TS3300 Rev. 1.0
Page 3
TS3300
TYPICAL PERFORMANCE CHARACTERISTICS
V
BI
= 1.2V, V
BO
= 3V, V
BEN
= GND, I
BO
= 0A, L = 10µH (LPS4018-103ML), C
BI
=C
BO
= 22µF, V
SW EN
=V
REG FB
=V
REG EN
=V
REGIN
=V
BO
,
I
REGOUT
=0A, unless otherwise specified. Values are at T
A
= 25°C unless otherwise specified.
Boost Regulator
Efficiency vs Load Current
100
90
80
EFFICIENCY - %
70
60
50
40
30
20
10
0
0.01
0.1
1
I
BO
- mA
Boost Minimum Start-Up Voltage
vs Source Resistance
1.2
START-UP VOLTAGE - V
START-UP VOLTAGE - V
1.1
+85ºC
1
0.9
0.8
0.7
0.6
L: 10µH (LPS4018-103ML)
0.5
0
5
10
15
20
25
SOURCE RESISTANCE-
Ω
30
0.8
0
3
6
9
12
I
BO
- mA
15
18
+25ºC
-40ºC
1.8
L: 22µH (LPS4018-223ML)
1.6
10
100
L: LPS4018-103ML
0
0.5
1
1.5
V
BI
- V
2
2.5
60
1.2V
BI
to 3V
BO
180
I
BO
- mA
V
BO
=1.8V
120
V
BO
=3V
1.2V
BI
to 1.8V
BO
300
240
Boost Regulator
Maximum Output Current vs V
BI
( for V
BO
to drop 2.5%)
Boost Minimum Start-Up Voltage
vs Load Current
1.4
1.2
1
Inductor Peak Current vs
Load Current
1.1
INDUCTOR PEAK CURRENT - A
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0
25
50
I
BO
- mA
75
100
1.2V
BI
to 1.8V
BO
1.2V
BI
to 3V
BO
Page 4
TS3300 Rev. 1.0
TS3300
TYPICAL PERFORMANCE CHARACTERISTICS
V
BI
= 1.2V, V
BO
= 3V, V
BEN
= GND, I
BO
= 0A, L = 10µH (LPS4018-103ML), C
BI
=C
BO
= 22µF, V
SW EN
=V
REG FB
=V
REG EN
=V
REGIN
=V
BO
,
I
REGOUT
=0A, unless otherwise specified. Values are at T
A
= 25°C unless otherwise specified.
Boost Regulator Output Voltage Ripple
V
BI
= 1.2V, V
BO
= 1.8V, C
BO
= 22µF, I
BO
= 5mA
Boost Regulator Output Voltage Ripple
V
BI
= 1.2V, V
BO
= 1.8V, C
BO
= 22µF, I
BO
= 40mA
V
BO
– 50mV/DIV
V
BO
– 50mV/DIV
20µs/DIV
Boost Regulator Output Voltage Ripple
V
BI
= 1.2V, V
BO
= 1.8V, C
BO
= 22µF, I
BO
= 80mA
50µs/DIV
Boost Regulator Output Voltage Ripple
V
BI
= 1.2V, V
BO
= 3V, C
BO
= 22µF, I
BO
= 5mA
V
BO
– 50mV/DIV
50µs/DIV
Boost Regulator Output Voltage Ripple
V
BI
= 1.2V, V
BO
= 3V, C
BO
= 22µF, I
BO
= 80mA
V
BO
– 50mV/DIV
50µs/DIV
V
BO
– 50mV/DIV
50µs/DIV
TS3300 Rev. 1.0
Page 5
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