The TPS8267x device is a complete 600mA, 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 TPS8267x is based on a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. The MicroSiP™ DC/DC converter operates at a regulated 5.5-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 17μA (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 TPS8267x 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.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
TPS8267x | µSIP (8) | 2.30 x 2.90 mm |
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Efficiency vs Output Current![]() |
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Changes from I Revision (November 2014) to J Revision
Changes from H Revision (October 2014) to I Revision
Changes from G Revision (September 2014) to H Revision
Changes from F Revision (November 2012) to G Revision
Changes from E Revision (October 2012) to F Revision
Changes from D Revision (April 2012) to E Revision
Changes from C Revision (November 2011) to D Revision
Changes from B Revision (August 2011) to C Revision
Changes from A Revision (April 2011) to B Revision
Changes from * Revision (October 2010) to A Revision
PART NUMBER (1) | OUTPUT VOLTAGE | DEVICE SPECIFIC FEATURE | PACKAGE MARKING |
---|---|---|---|
TPS82670 | 1.86V | PWM Spread Spectrum Modulation Low PFM Output Ripple Voltage Output Capacitor Discharge |
YK |
TPS82671 | 1.8V | PWM Spread Spectrum Modulation Low PFM Output Ripple Voltage |
RA |
TPS826711 | 1.8V | PWM Spread Spectrum Modulation Low PFM Output Ripple Voltage Output Capacitor Discharge |
YW |
TPS826716 | 1.6V | PWM Spread Spectrum Modulation Low PFM Output Ripple Voltage |
GS |
TPS82672 | 1.5V | PWM Spread Spectrum Modulation Low PFM Output Ripple Voltage |
WD |
TPS826721 | 2.1V | PWM Spread Spectrum Modulation Low PFM Output Ripple Voltage |
EO |
TPS82673 | 1.26V | PWM Spread Spectrum Modulation Low PFM Output Ripple Voltage Output Capacitor Discharge |
YL |
TPS82674 | 1.2V | PWM Spread Spectrum Modulation Low PFM Output Ripple Voltage Output Capacitor Discharge |
SW |
TPS826745 | 1.225V | PWM Spread Spectrum Modulation Low PFM Output Ripple Voltage Output Capacitor Discharge |
B5 |
TPS82675 | 1.2V | PWM Spread Spectrum Modulation Low PFM Output Ripple Voltage |
RB |
TPS82676 | 1.1V | PWM Spread Spectrum Modulation Low PFM Output Ripple Voltage Output Capacitor Discharge |
TU |
TPS826765 | 1.05V | PWM Spread Spectrum Modulation Low PFM Output Ripple Voltage Output Capacitor Discharge |
AN |
TPS82677 | 1.2V | Output Capacitor Discharge | SK |
TPS8267195 | 1.95V | PWM Spread Spectrum Modulation Low PFM Output Ripple Voltage |
4A |
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PIN | I/O | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
VOUT | A1 | O | Power output pin. Apply output load between this pin and GND. |
VIN | A2, A3 | I | The VIN pins supply current to the TPS8267x internal regulator. |
EN | B2 | I | This is the enable pin of the device. Connect this pin to ground to force the converter into shutdown mode. Pull this pin to VI to enable the device. This pin must not be left floating and must be terminated. |
MODE | B1 | I | This is the mode selection pin of the device. This pin must not be left floating and must be terminated. |
MODE = LOW: The device is operating in regulated frequency pulse width modulation mode (PWM) at high-load currents and in pulse frequency modulation mode (PFM) at light load currents. | |||
MODE = HIGH: Low-noise mode is enabled and regulated frequency PWM operation is forced. | |||
GND | C1, C2, C3 | – | Ground pin. |
MIN | MAX | UNIT | |||
---|---|---|---|---|---|
VI (3) | Voltage at VIN(2) | –0.3 | 6 | V | |
Voltage at VIN (TPS826721)(2) | -0.3 | 5.5 | |||
Voltage at VOUT | –0.3 | 3.6 | V | ||
Voltage at EN, MODE | –0.3 | VIN + 0.3 | V | ||
Power dissipation | Internally limited | ||||
TA | Operating temperature range(4) | –40 | 85 | °C | |
TINT (max) | Maximum internal operating temperature | 125 | °C | ||
Tstg | Storage temperature | –55 | 125 | °C |
VALUE | UNIT | ||
---|---|---|---|
VESD(1) | Human body model (HBM) ESD stress voltage(2) | ±2000 | V |
Charge device model (CDM) ESD stress voltage(3) | ±1000 | ||
Machine model (MM) ESD stress voltage(4) | ±200 | V |
MIN | NOM | MAX | UNIT | |||
---|---|---|---|---|---|---|
VIN | Input voltage range | 2.3 | 4.8(2) | V | ||
IO | Output current range | TPS82671 to TPS826765 | 0 | 600 | mA | |
Additional output capacitance (PFM/PWM operation)(1) | TPS82670 to TPS82676 TPS826711, TPS826716, TPS826721, TPS826765, TPS8267195 |
0 | 2.5 | µF | ||
TPS82677 | 0 | 4 | µF | |||
Additional output capacitance (PWM operation)(1) | 0 | 7 | µF | |||
TA | Ambient temperature | –40 | +85 | °C | ||
TJ | Operating junction temperature | –40 | +125 | °C |
THERMAL METRIC(1) | TPS8267x | UNIT | |
---|---|---|---|
SIP | |||
8 PINS | |||
RθJA | Junction-to-ambient (top) thermal resistance | 125 | °C/W |
Junction-to-ambient (bottom) thermal resistance | 70 | ||
RθJCtop | Junction-to-case (top) thermal resistance | - | |
RθJB | Junction-to-board thermal resistance | - | |
ψJT | Junction-to-top characterization parameter | - | |
ψJB | Junction-to-board characterization parameter | - | |
RθJCbot | Junction-to-case (bottom) thermal resistance | - |
VI = 3.6 V | VO = 1.8 V | (TPS82671) |
VO = 1.8 V | RL = 12 Ω | (TPS82671) |
VO = 1.8 V |
VO = 1.8 V | RL = 150 Ω | (TPS82671) |
VI = 3.6 V | VO = 1.8 V | (TPS82671) |