SLUSF27
November 2023
TPS546B24S
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics
5.6
Typical Characteristics
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagram
6.3
Feature Description
6.3.1
Average Current-Mode Control
6.3.1.1
On-Time Modulator
6.3.1.2
Current Error Integrator
6.3.1.3
Voltage Error Integrator
6.3.2
Linear Regulators
6.3.3
AVIN and PVIN Pins
6.3.4
Input Undervoltage Lockout (UVLO)
6.3.4.1
Fixed AVIN UVLO
6.3.4.2
Fixed VDD5 UVLO
6.3.4.3
Programmable PVIN UVLO
6.3.4.4
EN/UVLO Pin
6.3.5
Start-Up and Shutdown
6.3.6
Differential Sense Amplifier and Feedback Divider
6.3.7
Set Output Voltage and Adaptive Voltage Scaling (AVS)
6.3.7.1
Reset Output Voltage
6.3.7.2
Soft Start
6.3.8
Prebiased Output Start-Up
6.3.9
Soft Stop and (65h) TOFF_FALL Command
6.3.10
Power Good (PGOOD)
6.3.11
Set Switching Frequency
6.3.12
Frequency Synchronization
6.3.13
Loop Follower Detection
6.3.14
Current Sensing and Sharing
6.3.15
Telemetry
6.3.16
Overcurrent Protection
6.3.17
Overvoltage/Undervoltage Protection
6.3.18
Overtemperature Management
6.3.19
Fault Management
6.3.20
Back-Channel Communication
6.3.21
Switching Node (SW)
6.3.22
PMBus General Description
6.3.23
PMBus Address
6.3.24
PMBus Connections
6.4
Device Functional Modes
6.4.1
Programming Mode
6.4.2
Standalone, Loop Controller, Loop Follower Mode Pin Connections
6.4.3
Continuous Conduction Mode
6.4.4
Operation With CNTL Signal (EN/UVLO)
6.4.5
Operation with (01h) OPERATION Control
6.4.6
Operation with CNTL and (01h) OPERATION Control
6.5
Programming
6.5.1
Supported PMBus Commands
6.5.2
Pin Strapping
6.5.2.1
Programming MSEL1
6.5.2.2
Programming MSEL2
6.5.2.3
Programming VSEL
6.5.2.4
Programming ADRSEL
6.5.2.5
Programming MSEL2 for a Loop Follower Device (GOSNS Tied to BP1V5)
6.5.2.6
Pin-Strapping Resistor Configuration
6.6
Register Maps
6.6.1
Conventions for Documenting Block Commands
6.6.2
(01h) OPERATION
6.6.3
(02h) ON_OFF_CONFIG
6.6.4
(03h) CLEAR_FAULTS
6.6.5
(04h) PHASE
6.6.6
(10h) WRITE_PROTECT
6.6.7
(15h) STORE_USER_ALL
6.6.8
(16h) RESTORE_USER_ALL
6.6.9
(19h) CAPABILITY
6.6.10
(1Bh) SMBALERT_MASK
6.6.11
(1Bh) SMBALERT_MASK_VOUT
6.6.12
(1Bh) SMBALERT_MASK_IOUT
6.6.13
(1Bh) SMBALERT_MASK_INPUT
6.6.14
(1Bh) SMBALERT_MASK_TEMPERATURE
6.6.15
(1Bh) SMBALERT_MASK_CML
6.6.16
(1Bh) SMBALERT_MASK_OTHER
6.6.17
(1Bh) SMBALERT_MASK_MFR
6.6.18
(20h) VOUT_MODE
6.6.19
(21h) VOUT_COMMAND
6.6.20
(22h) VOUT_TRIM
6.6.21
(24h) VOUT_MAX
6.6.22
(25h) VOUT_MARGIN_HIGH
6.6.23
(26h) VOUT_MARGIN_LOW
6.6.24
(27h) VOUT_TRANSITION_RATE
6.6.25
(29h) VOUT_SCALE_LOOP
6.6.26
(2Bh) VOUT_MIN
6.6.27
(33h) FREQUENCY_SWITCH
6.6.28
(35h) VIN_ON
6.6.29
(36h) VIN_OFF
6.6.30
(37h) INTERLEAVE
6.6.31
(38h) IOUT_CAL_GAIN
6.6.32
(39h) IOUT_CAL_OFFSET
6.6.33
(40h) VOUT_OV_FAULT_LIMIT
6.6.34
(41h) VOUT_OV_FAULT_RESPONSE
6.6.35
(42h) VOUT_OV_WARN_LIMIT
6.6.36
(43h) VOUT_UV_WARN_LIMIT
6.6.37
(44h) VOUT_UV_FAULT_LIMIT
6.6.38
(45h) VOUT_UV_FAULT_RESPONSE
6.6.39
(46h) IOUT_OC_FAULT_LIMIT
6.6.40
(47h) IOUT_OC_FAULT_RESPONSE
6.6.41
(4Ah) IOUT_OC_WARN_LIMIT
6.6.42
(4Fh) OT_FAULT_LIMIT
6.6.43
(50h) OT_FAULT_RESPONSE
6.6.44
(51h) OT_WARN_LIMIT
6.6.45
(55h) VIN_OV_FAULT_LIMIT
6.6.46
(56h) VIN_OV_FAULT_RESPONSE
6.6.47
(58h) VIN_UV_WARN_LIMIT
6.6.48
(60h) TON_DELAY
6.6.49
(61h) TON_RISE
6.6.50
(62h) TON_MAX_FAULT_LIMIT
6.6.51
(63h) TON_MAX_FAULT_RESPONSE
6.6.52
(64h) TOFF_DELAY
6.6.53
(65h) TOFF_FALL
6.6.54
(78h) STATUS_BYTE
6.6.55
(79h) STATUS_WORD
6.6.56
(7Ah) STATUS_VOUT
6.6.57
(7Bh) STATUS_IOUT
6.6.58
(7Ch) STATUS_INPUT
6.6.59
(7Dh) STATUS_TEMPERATURE
6.6.60
(7Eh) STATUS_CML
6.6.61
(7Fh) STATUS_OTHER
6.6.62
(80h) STATUS_MFR_SPECIFIC
6.6.63
(88h) READ_VIN
6.6.64
(8Bh) READ_VOUT
6.6.65
(8Ch) READ_IOUT
6.6.66
(8Dh) READ_TEMPERATURE_1
6.6.67
(98h) PMBUS_REVISION
6.6.68
(99h) MFR_ID
6.6.69
(9Ah) MFR_MODEL
6.6.70
(9Bh) MFR_REVISION
6.6.71
(9Eh) MFR_SERIAL
6.6.72
(ADh) IC_DEVICE_ID
6.6.73
(AEh) IC_DEVICE_REV
6.6.74
(B1h) USER_DATA_01 (COMPENSATION_CONFIG)
6.6.75
(B5h) USER_DATA_05 (POWER_STAGE_CONFIG)
6.6.76
(D0h) MFR_SPECIFIC_00 (TELEMETRY_CONFIG)
6.6.77
(DAh) MFR_SPECIFIC_10 (READ_ALL)
6.6.78
(DBh) MFR_SPECIFIC_11 (STATUS_ALL)
6.6.79
(DCh) MFR_SPECIFIC_12 (STATUS_PHASE)
6.6.80
(E3h) MFR_SPECIFIC_19 (PGOOD_CONFIG)
6.6.81
(E4h) MFR_SPECIFIC_20 (SYNC_CONFIG)
6.6.82
(ECh) MFR_SPECIFIC_28 (STACK_CONFIG)
6.6.83
(EDh) MFR_SPECIFIC_29 (MISC_OPTIONS)
6.6.84
(EEh) MFR_SPECIFIC_30 (PIN_DETECT_OVERRIDE)
6.6.85
(EFh) MFR_SPECIFIC_31 (DEVICE_ADDRESS)
6.6.86
(F0h) MFR_SPECIFIC_32 (NVM_CHECKSUM)
6.6.87
(F1h) MFR_SPECIFIC_33 (SIMULATE_FAULT)
6.6.88
(FAh) MFR_SPECIFIC_42 (PASSKEY)
6.6.89
(FBh) MFR_SPECIFIC_43 (EXT_WRITE_PROTECT)
6.6.90
(FCh) MFR_SPECIFIC_44 (FUSION_ID0)
6.6.91
(FDh) MFR_SPECIFIC_45 (FUSION_ID1)
7
Application and Implementation
7.1
Application Information
7.2
Typical Application
7.2.1
Design Requirements
7.2.2
Detailed Design Procedure
7.2.2.1
Custom Design With WEBENCH® Tools
7.2.2.2
Switching Frequency
7.2.2.3
Inductor Selection
7.2.2.4
Output Capacitor Selection
7.2.2.4.1
Output Voltage Deviation During Load Transient
7.2.2.4.2
Output Voltage Ripple
7.2.2.5
Input Capacitor Selection
7.2.2.6
AVIN, BP1V5, VDD5 Bypass Capacitor
7.2.2.7
Bootstrap Capacitor Selection
7.2.2.8
R-C Snubber
7.2.2.9
Output Voltage Setting (VSEL Pin)
7.2.2.10
Compensation Selection (MSEL1 Pin)
7.2.2.11
Soft Start, Overcurrent Protection, and Stacking Configuration (MSEL2 Pin)
7.2.2.12
Enable and UVLO
7.2.2.13
ADRSEL
7.2.2.14
Pin-Strapping Resistor Selection
7.2.2.15
BCX_CLK and BCX_DAT
7.2.3
Application Curves
7.3
Power Supply Recommendations
7.4
Layout
7.4.1
Layout Guidelines
7.4.2
Layout Example
7.4.3
Mounting and Thermal Profile Recommendation
8
Device and Documentation Support
8.1
Device Support
8.1.1
Third-Party Products Disclaimer
8.1.2
Development Support
8.1.2.1
Custom Design With WEBENCH® Tools
8.1.2.2
Texas Instruments Fusion Digital Power Designer
8.2
Documentation Support
8.2.1
Related Documentation
8.3
Receiving Notification of Documentation Updates
8.4
Support Resources
8.5
Trademarks
8.6
Electrostatic Discharge Caution
8.7
Glossary
9
Revision History
10
Mechanical, 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)
RVF|40
MPQF268C
サーマルパッド・メカニカル・データ
RVF|40
QFND333E
発注情報
slusf27_oa
slusf27_pm
8.1
Device Support