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TPS82697 Datasheet Preview

TPS82697 Datasheet

Step-Down Converter

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TPS82690
TPS82695
TPS82697
www.ti.com
SLVSA66B JUNE 2011 REVISED FEBRUARY 2012
500-mA, HIGH-EFFICIENCY MicroSiPSTEP-DOWN CONVERTER (PROFILE <1mm)
Check for Samples: TPS82690, TPS82695, TPS82697
FEATURES
1
2 Total Solution Size <6.7 mm2
95% Efficiency at 4MHz Operation
24μA Quiescent Current
High Duty-Cycle Operation
Best in Class Load and Line Transient
• ±2% Total DC Voltage Accuracy
Automatic PFM/PWM Mode Switching
Low Ripple Light-Load PFM Mode
Excellent AC Load Regulation
Internal Soft Start, 130-µs Start-Up Time
Integrated Active Power-Down Sequencing
(Optional)
Current Overload and Thermal Shutdown
Protection
Sub 1-mm Profile Solution
APPLICATIONS
LDO Replacement
Cell Phones, Smart-Phones
PoL Applications
TPS82690SIP
VBAT
3.25 V .. 4.35 V
CI
DC/DC Converter
L
VIN
SW
GND
FB
ENABLE
EN
MODE
VOUT
2.85 V @ 500mA
CO
MODE
SELECTION
GND
Figure 1. Typical Application
DESCRIPTION
The TPS8269xSIP device is a complete 500mA,
DC/DC step-down power supply intended for
low-power applications. Included in the package are
the switching regulator, inductor and input/output
capacitors. No additional components are required to
finish the design.
The TPS8269xSIP is based on a high-frequency
synchronous step-down dc-dc converter optimized for
battery-powered portable applications. The
MicroSIPDC/DC converter operates at a regulated
4-MHz switching frequency and enters the
power-save mode operation at light load currents to
maintain high efficiency over the entire load current
range.
The PFM mode extends the battery life by reducing
the quiescent current to 24μA (typ) during light load
operation. For noise-sensitive applications, the device
has PWM spread spectrum capability providing a
lower noise regulated output, as well as low noise at
the input. These features, combined with high PSRR
and AC load regulation performance, make this
device suitable to replace a linear regulator to obtain
better power conversion efficiency.
The TPS8269xSIP is packaged in a compact (2.3mm
x 2.9mm) and low profile (1.0mm) BGA package
suitable for automated assembly by standard surface
mount equipment.
100
150
VI = 3.6 V,
95 VO = 2.85 V
Efficiency
PFM/PWM Operation
135
90
120
85
105
80
90
75
75
70
60
65
Power Loss
45
PFM/PWM Operation
60
30
55
50
0.1
1
10
100
IO - Load Current - mA
15
0
1000
Figure 2. Efficiency vs. Load Current
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
MicroSiP, MicroSIP are trademarks of Texas Instruments.
2
UNLESS OTHERWISE NOTED this document contains
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 20112012, Texas Instruments Incorporated




etcTI

TPS82697 Datasheet Preview

TPS82697 Datasheet

Step-Down Converter

No Preview Available !

TPS82690
TPS82695
TPS82697
SLVSA66B JUNE 2011 REVISED FEBRUARY 2012
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
TA
-40°C to 85°C
PART
NUMBER
TPS82695
TPS82690 (4)
TPS82696 (4)
TPS82697 (4)
ORDERING INFORMATION(1)
OUTPUT
VOLTAGE (2)
DEVICE
SPECIFIC FEATURE
2.5V
2.85V
2.9V
2.8V
ORDERING (3)
TPS82695SIP
TPS82690SIP
TPS82696SIP
TPS82697SIP
PACKAGE
MARKING
UF
RC
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
(2) Internal tap points are available to facilitate output voltages in 25mV increments.
(3) The SIP package is available in tape and reel. Add a R suffix (e.g. TPS82690SIPR) to order quantities of 3000 parts. Add a T suffix (e.g.
TPS82690SIPT) to order quantities of 250 parts.
(4) Product preview. Contact TI factory for more information
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)(1)
VI
IO
TA
TINT (max)
Tstg
ESD rating (5)
Voltage at VIN(2)(3)
Voltage at VOUT(3)
Voltage at EN, MODE (3)
Peak output current
Power dissipation
Operating temperature range(4)
Maximum internal operating temperature
Storage temperature range
Human body model
Charge device model
Machine model
UNIT
0.3 V to 6 V
0.3 V to 3.6 V
0.3 V to VI + 0.3 V
500 mA
Internally limited
40°C to 85°C
125°C
55°C to 125°C
2 kV
1 kV
200 V
(1) 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 conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) Operation above 4.35V input voltage for extended periods may affect device reliability. See input capacitor selection section for more
details.
(3) All voltage values are with respect to network ground terminal.
(4) In applications where high power dissipation and/or poor package thermal resistance is present, the maximum ambient temperature may
have to be derated. Maximum ambient temperature (TA(max)) is dependent on the maximum operating temperature (TINT(max)), the
maximum power dissipation of the device in the application (PD(max)), and the junction-to-ambient thermal resistance of the part/package
in the application (θJA), as given by the following equation: TA(max)= TJ(max)(θJA X PD(max)). To achieve optimum performance, it is
recommended to operate the device with a maximum internal temperature of 105°C.
(5) The human body model is a 100-pF capacitor discharged through a 1.5-kresistor into each pin. The machine model is a 200-pF
capacitor discharged directly into each pin.
2
Copyright © 20112012, Texas Instruments Incorporated


Part Number TPS82697
Description Step-Down Converter
Maker etcTI
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TPS82697 Datasheet PDF






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