SBVS190E March   2012  – December 2015 TPS7A7300

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configurations
  6. Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 User-Configurable Output Voltage
      2. 7.3.2 Traditional Adjustable Configuration
      3. 7.3.3 Undervoltage Lockout (UVLO)
      4. 7.3.4 Soft-Start
      5. 7.3.5 Current Limit
      6. 7.3.6 Enable
      7. 7.3.7 Power Good
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Operation
      2. 7.4.2 Dropout Operation
      3. 7.4.3 Disabled
  8. Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 ANY-OUT Programmable Output Voltage
        2. 8.2.2.2 Traditional Adjustable Output Voltage
        3. 8.2.2.3 Input Capacitor Requirements
        4. 8.2.2.4 Output Capacitor Requirements
      3. 8.2.3 Application Curves
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Thermal Considerations
    4. 10.4 Power Dissipation
    5. 10.5 Estimating Junction Temperature
  11. 11Device And Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, And Orderable Information

パッケージ・オプション

メカニカル・データ(パッケージ|ピン)
サーマルパッド・メカニカル・データ
発注情報

6 Specifications

6.1 Absolute Maximum Ratings

Over operating junction temperature range (unless otherwise noted).(1)
MIN MAX UNIT
Voltage IN, PG, EN –0.3 7 V
SS, FB, SNS, OUT –0.3 VIN + 0.3(2) V
50 mV, 100 mV, 200 mV, 400 mV, 800 mV, 1.6 V –0.3 VOUT + 0.3(2) V
Current OUT Internally limited A
PG (sink current into IC) 5 mA
Temperature Operating virtual junction, TJ –55 160 °C
Storage, Tstg –55 150 °C
(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 is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) The absolute maximum rating is VIN + 0.3 V or +7 V, whichever is smaller.

6.2 ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±2000 V
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) ±500
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

6.3 Recommended Operating Conditions

over operating junction temperature range (unless otherwise noted)
MIN NOM MAX UNIT
VIN Supply voltage 1.425 6.5 V
VOUT Output voltage 0.9 5 V
VEN Enable voltage 0 6.5 V
VPG Pullup voltage 0 6.5 V
Any-out voltage 50 mV, 100 mV, 200 mV,
400 mV, 800 mV, 1.6 V
0 VOUT V
IOUT Output current 0 3 A
COUT Output capacitance 4.7 200(1) µF
CFB Feedforward capacitance 0 100 nF
TJ Junction temperature –40 125 °C
(1) For output capacitors larger than 47 µF, a feedforward capacitor of at least 220 pF must be used.

6.4 Thermal Information

THERMAL METRIC(1) TPS7A7300 UNIT
RGW (VQFN)
20 PINS
RθJA Junction-to-ambient thermal resistance 35.7 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 33.6 °C/W
RθJB Junction-to-board thermal resistance 15.2 °C/W
ψJT Junction-to-top characterization parameter 0.4 °C/W
ψJB Junction-to-board characterization parameter 15.4 °C/W
RθJC(bot) Junction-to-case (bottom) thermal resistance 3.8 °C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953.

6.5 Electrical Characteristics

Over operating temperature range (TJ = –40°C to +125°C), 1.425 V ≤ VIN ≤ 6.5 V, VIN ≥ VOUT(TARGET) + 0.3 V or
VIN ≥ VOUT(TARGET) + 0.7 V(1)(2), OUT connected to 50 Ω to GND(4),VEN = 1.1 V, COUT = 10 μF, CSS = 10 nF, CFF = 0 pF (RGW package), CFF = 220 pF (RGT package), and PG pin pulled up to VIN with 100 kΩ, 27 kΩ ≤ R2 ≤ 33 kΩ for adjustable configuration(3), unless otherwise noted.
Typical values are at TJ = +25°C.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VIN Input voltage range 1.425 6.5 V
V(SS) SS pin voltage 0.5 V
VOUT Output voltage range Adjustable with external feedback resistors 0.9 5 V
Fixed with voltage setting pins 0.9 3.5
Output voltage accuracy(5)(6) Adjustable, 25 mA ≤ IOUT ≤ 3 A –2.0% 2.0%
Fixed, 25 mA ≤ IOUT ≤ 3 A –3.0% 3%
ΔVO(ΔVI) Line regulation IOUT = 25 mA 0.01 %/V
ΔVO(ΔIO) Load regulation 25 mA ≤ IOUT ≤ 3 A 0.1 %/A
V(DO) Dropout voltage (7) VOUT ≤ 3.3 V, IOUT = 3 A, V(FB) = GND 240 mV
3.3 V < VOUT, IOUT = 3 A, V(FB) = GND 700 mV
I(LIM) Output current limit VOUT forced at 0.9 × VOUT(TARGET), VIN = 3.3 V, VOUT(TARGET) = 0.9 V 3.6 A
I(GND) GND pin current Full load, IOUT = 3 A 3.7 mA
Minimum load, VIN = 6.5 V,
VOUT(TARGET) = 0.9 V, IOUT = 25 mA
4 mA
Shutdown, PG = (open), VIN = 6.5 V,
VOUT(TARGET) = 0.9 V, V(EN) < 0.5 V
0.1 5 μA
I(EN) EN pin current VIN = 6.5 V, V(EN) = 0 V and 6.5 V ±0.1 μA
VIL(EN) EN pin low-level input voltage (disable device) 0 0.5 V
VIH(EN) EN pin high-level input voltage (enable device) 1.1 6.5 V
VIT(PG) PG pin threshold For the direction PG↓ with decreasing VOUT 0.85VOUT 0.9VOUT 0.96VOUT V
Vhys(PG) PG pin hysteresis For PG↑ 0.02VOUT V
VOL(PG) PG pin low-level output voltage VOUT < VIT(PG), IPG = –1 mA (current into device) 0.4 V
Ilkg(PG) PG pin leakage current VOUT > VIT(PG), V(PG) = 6.5 V 1 μA
I(SS) SS pin charging current V(SS) = GND, VIN = 3.3 V 3.5 5.1 7.2 μA
Vn Output noise voltage BW = 100 Hz to 100 kHz,
VIN = 1.5 V, VOUT = 1.2 V, IOUT = 3 A
39.46 μVRMS
Tsd Thermal shutdown temperature Shutdown, temperature increasing 160 °C
Reset, temperature decreasing 140 °C
TJ Operating junction temperature –40 125 °C
(1) When VOUT ≤ 3.5 V, VIN ≥ (VOUT + 0.3 V) or 1.425 V, whichever is greater; when VOUT > 3.5 V, VIN ≥ (VOUT + 0.7 V).
(2) VOUT(TARGET) is the calculated target VOUT value from the output voltage setting pins: 50mV, 100mV, 200mV, 400mV, 800mV, and 1.6V in fixed configuration, or the expected VOUT value set by external feedback resistors in adjustable configuration.
(3) R2 is the bottom-side of the feedback resistor between the FB pin and GND. See Figure 30 for details.
(4) This 50-Ω load is disconnected when the test conditions specify an IOUT value.
(5) When the TPS7A7300 is connected to external feedback resistors at the FB pin, external resistor tolerances are not included.
(6) The TPS7A7300 is not tested at VOUT = 0.9 V, 2.7 V ≤ VIN ≤ 6.5 V, and 500 mA ≤ IOUT ≤ 3 A because the power dissipation is higher than the maximum rating of the package. Also, this accuracy specification does not apply on any application condition that exceeds the power dissipation limit of the package.
(7) V(DO) is not defined for output voltage settings less than 1.2 V.

6.6 Typical Characteristics

At TJ = 25°C, VIN = VOUT(TARGET) + 0.3 V, IOUT = 25 mA, V(EN) = VIN, CIN = 10 μF, COUT = 10 μF, C(SS) = 10 nF, and the PG pin pulled up to VIN with 100-kΩ pullup resistor, unless otherwise noted.
TPS7A7300 bvs136_g002.png
Figure 1. Load Regulation (0.9 V, Adjustable)
TPS7A7300 bvs136_g202.png
Figure 3. Load Regulation (0.9 V, Fixed By Setting Pins)
TPS7A7300 bvs136_g012.png
Figure 5. Dropout Voltage vs Output Current
TPS7A7300 bvs136_g006.png
Figure 7. Line Regulation (0.9 V, Adjustable)
TPS7A7300 bvs136_g206.png
Figure 9. Line Regulation (0.9 V, Fixed By Setting Pins)
TPS7A7300 bvs136_g020.png
Figure 11. Measured Output Voltage vs Pin-Setting
TPS7A7300 bvs136_g031.png
Figure 13. Gnd Pin Current vs Output Current
TPS7A7300 bvs136_g032.png
Figure 15. GND Pin Current In Shutdown vs Temperature
TPS7A7300 bvs136_g050.png
Figure 17. Power-Good Threshold Voltage vs Temperature
TPS7A7300 bvs136_g062.png
Figure 19. Noise Spectral Density By Output Voltage
TPS7A7300 bvs136_g072.png
Figure 21. Power-Supply Ripple Rejection vs Frequency
TPS7A7300 bvs136_g317.png
Figure 23. Load Transient Response (VOUT = 3.3 V)
TPS7A7300 bvs136_g005.png
Figure 2. Load Regulation (5.0 V, Adjustable)
TPS7A7300 bvs136_g205.png
Figure 4. Load Regulation (3.5 V, Fixed By Setting Pins)
TPS7A7300 bvs136_g015.png
Figure 6. Dropout Voltage vs Temperature
TPS7A7300 bvs136_g007.png
Figure 8. Line Regulation (5 V, Adjustable)
TPS7A7300 bvs136_g207.png
Figure 10. Line Regulation (3.5 V, Fixed By Setting Pins)
TPS7A7300 bvs136_g021.png
Figure 12. Accuracy vs Pin-Setting
TPS7A7300 bvs136_g033.png
Figure 14. GND Pin Current vs Input Voltage
TPS7A7300 bvs136_g042.png
Figure 16. Current Limit vs Output Voltage (Foldback)
TPS7A7300 bvs136_g051.png
Figure 18. Power-Good Pin Drive Capability
TPS7A7300 bvs136_g063.png
Figure 20. Noise Spectral Density By External Capacitors
TPS7A7300 bvs136_g314.png
Figure 22. Load Transient Response (VOUT = 1.2 V)