ZHCSCZ1B june   2014  – may 2023 TPS65262-1

PRODUCTION DATA  

  1.   1
  2. 特性
  3. 应用
  4. 说明
  5. Revision History
  6. Device Comparison Table
  7. Pin Configuration and Functions
  8. Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  9. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Adjusting the Output Voltage
      2. 8.3.2  Enable and Adjusting UVLO
      3. 8.3.3  Soft-Start Time
      4. 8.3.4  Power-Up Sequencing
        1. 8.3.4.1 External Power Sequencing
        2. 8.3.4.2 Automatic Power Sequencing
      5. 8.3.5  V7V Low Dropout Regulator and Bootstrap
      6. 8.3.6  Out-of-Phase Operation
      7. 8.3.7  Output Overvoltage Protection (OVP)
      8. 8.3.8  PSM
      9. 8.3.9  Slope Compensation
      10. 8.3.10 Overcurrent Protection (OCP)
        1. 8.3.10.1 High-Side MOSFET OCP
        2. 8.3.10.2 Low-Side MOSFET OCP
      11. 8.3.11 Power Good
      12. 8.3.12 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Operation With VIN < 4.5 V (Minimum VIN)
      2. 8.4.2 Operation With EN Control
      3. 8.4.3 Operation at Light Loads
  10. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Output Inductor Selection
        2. 9.2.2.2 Output Capacitor Selection
        3. 9.2.2.3 Input Capacitor Selection
        4. 9.2.2.4 Loop Compensation
      3. 9.2.3 Application Curves
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 接收文档更新通知
    2. 10.2 支持资源
    3. 10.3 Trademarks
    4. 10.4 静电放电警告
    5. 10.5 术语表
  12. 11Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
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订购信息

Electrical Characteristics

TA = 25°C, VIN = 12 V, FSW = 600 kHz (unless otherwise noted)
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
INPUT SUPPLY VOLTAGE
VINInput voltage range4.518V
UVLOVIN undervoltage lockoutVIN rising44.254.5V
VIN falling3.53.754V
Hysteresis500mV
IDDSDNShutdown supply currentEN1 = EN2 = EN3 = MODE = LEN1 = LEN2 = 0 V12µA
IDDQ_NSWInput quiescent current without buck1, buck2, buck3 switchingEN1 = EN2 = EN3 = 5 V, FB1 = FB2 = FB3 = 0.8 V, LEN1 = LEN2 = 0790µA
IDDQ_NSW1EN1 = 5 V, EN2 = EN3 = 0 V, FB1 = 0.8 V, LEN1 = LEN2 = 0340µA
IDDQ_NSW2EN2 = 5 V, EN1 = EN3 = 0 V, FB2 = 0.8 V, LEN1 = LEN2 = 0370µA
IDDQ_NSW3EN3 = 5V, EN1 = EN2 = 0 V, FB3 = 0.8 V, LEN1 = LEN2 = 0370µA
IDDQ_LDO1LDO input quiescent currentEN1 = EN2 = EN3 = LEN2 = 0 V, LFB1 = 0.8 V, LEN1 = 5 V190µA
IDDQ_LDO2EN1 = EN2 = EN3 = LEN1 = 0 V, LFB2 = 0.8 V, LEN2 = 5 V190µA
V7VV7V LDO output voltageV7V load current = 0 A66.36.6V
IOCP_V7VV7V LDO current limit175mA
FEEDBACK VOLTAGE REFERENCE
VFBFeedback voltageVCOMP = 1.2 V, TJ = 25°C0.5950.60.605V
VCOMP = 1.2 V, TJ = –40°C to 125°C0.5940.60.606V
VLINEREG_BUCKLine regulation-DC(1)IOUT1 = 1.5 A, IOUT2 = 1 A, IOUT3 = 1 A, 5 V < VINx < 18 V0.002%/V
VLOADREG_BUCKLoad regulation-DC(1)VIN = 12 V, IOUTx = (10–100%) × IOUTx_max0.02%/A
BUCK1, BUCK2, BUCK3
VENXHEN1, EN2, EN3 high-level input voltage1.21.26V
VENXLEN1, EN2, EN3 low-level input voltage1.11.15V
IENXEN1, EN2, EN3 pullup currentENx = 1 V3.6µA
ENx = 1.5 V6.6
IENhysHysteresis current3µA
ISS1Buck1 soft-start charging current4.356µA
TSS2/3Buck2, buck3 soft-start time1ms
TON_MINMinimum on time80100ns
Gm_EA1/2/3Error amplifier trans-conductance–2 µA < ICOMPX < 2 µA300µs
Gm_PS1/2/3COMP voltage to inductor current Gm(1)ILX = 0.5 A7.4A/V
ILIMIT1Buck1 peak inductor current limit4.45.16.06A
ILIMITSOURCE1Buck1 low-side source current limit4.4A
ILIMITS1Buck1 low-side sink current limit1.3A
ILIMIT2/3Buck2, buck3 peak inductor current limit1.82.43A
ILIMITSOURCE2/3Buck2, buck3 low-side source current limit1.75A
ILIMITS2/3Buck2, buck3 low-side sink current limit1A
THiccup_waitOC wait time(1)0.5ms
THiccup_reHiccup time before restart(1)14ms
Rdson_HS1Buck1 high-side switch resistanceVIN1 = 12 V100
Rdson_LS1Buck1 low-side switch resistanceVIN1 = 12 V65
Rdson_HS2Buck2 high-side switch resistanceVIN1 = 12 V195
Rdson_LS2Buck2 low-side switch resistanceVIN1 = 12 V145
Rdson_HS3Buck3 high-side switch resistanceVIN1 = 12 V195
Rdson_LS3Buck3 low-side switch resistanceVIN1 = 12 V145
POWER GOOD, MODE, POWER SEQUENCE
Vth_PGFeedback voltage thresholdFBx undervoltage falling92.5%VREF
FBx undervoltage rising95
FBx overvoltage rising107.5
FBx overvoltage falling105
TDEGLITCH(PG)_FPGOOD falling edge deglitch time0.19ms
TRDEGLITCH(PG)_RPGOOD rising edge deglitch time1ms
IPGPGOOD pin leakage0.05µA
VLOW_PGPGOOD pin low voltageISINK = 1 mA0.4V
VMODEHMODE high-level input voltage1.21.26V
VMODELMODE low-level input voltage1.11.15V
IMODEMODE pullup currentMODE = 1 V3.6µA
MODE = 1.5 V6.6
TpsdelayDelay time between bucks at automatic power sequencing mode(1)MODE = 1.5 V1.7ms
LDO1 AND LDO2
VLENXHLEN1, LEN2 high-level input voltage1.21.26V
VLENXLLEN1, LEN2 low-level input voltage1.11.15V
ILENXLEN1, LEN2 pullup currentLENx = 1 V3.6µA
LENx = 1.5 V6.6
VINLDO1LDO input voltage range1.35.5V
VOUTLDO1LDO output voltage rangeLoad current = 350 mA1V
VLDOFB1LDO voltage referenceLoad current = 10 mA0.5940.60.606V
Imax_LDO1LDO current limit350455540mA
Vdropout1LDO dropout voltageIOUT = 20 mA12mV
IOUT = 350 mA400mV
VLINEREG_LDO1LDO line regulation-DC(1)VOUT = 1.8 V, IOUT = 10 mA,
LVIN1 changes from 2 to 5.5 V
0.002%/V
VLOADREG_LDO1LDO load regulation-DC(1)IOUT = 1 to 350 mA, LVIN1 = 5 V0.2%/A
PSRRLDO1Ripple rejection(1)LVIN1 = 5 V, Vout = 1.8 V, IOUT = 10 mA, ƒ = 10 kHz56dB
VINLDO2LDO input voltage range1.35.5V
VOUTLDO2LDO output voltage rangeLoad current = 150 mA1V
VLDOFB2LDO voltage referenceLoad current = 10 mA0.5940.60.606V
Imax_LDO2LDO current limit170220290mA
Vdropout2LDO dropout voltage(1)IOUT = 10 mA12mV
IOUT = 150 mA250
VLINEREG_LDO2LDO line regulation-DC(1)VOUT = 1.8 V, IOUT= 10 mA,
LVIN2 changes from 2 to 5.5 V
0.002%/V
VLOADREG_LDO2LDO load regulation-DC(1)IOUT = 1 to 150 mA, LVIN2 = 5 V0.2%/A
PSRRLDO2Ripple rejection(1)LVIN2 = 5 V, Vout = 1.8 V, IOUT = 10 mA, ƒ = 10 kHz56dB
OSCILLATOR
FSWSwitching frequency570600630kHz
THERMAL PROTECTION
TTRIP_OTPThermal protection trip point(1)Temperature rising160°C
THYST_OTPHysteresis20°C
Lab validation result