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TPS62054DGS

Buck Switching Regulator IC Positive Fixed 1.8V 1 Output 800mA 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

TPS62054DGS
Datasheet:

TPS62054DGS Datasheet (PDF)
Function:

Step-Down
Output Configuration:

Positive
Topology:

Buck
Output Type:

Fixed
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TPS62054DGS General Description

The TPS6205x devices are a family of high-efficiency synchronous step-down DC-DC converters that are ideally suited for systems powered from a 1- or 2-cell Li-Ion battery or from a 3- to 5-cell NiCd, NiMH, or alkaline battery.

The TPS6205x devices are synchronous pulse width modulation (PWM) converters with integrated N- and P-channel power MOSFET switches. Synchronous rectification increases efficiency and reduces external component count. To achieve highest efficiency over a wide load current range, the converter enters a power-saving pulse frequency modulation (PFM) mode at light load currents. Operating frequency is typically 850 kHz, allowing the use of small inductor and capacitor values. The device can be synchronized to an external clock signal in the range of 600 kHz to 1.2 MHz. For low noise operation, the converter can be programmed into forced-fixed frequency in PWM mode. In shutdown mode, the current consumption is reduced to less than 2 µA. The TPS6205x devices are available in the 10-pin (DGS) micro-small outline package (MSOP) and operates over a free air temperature range of 40°C to 85°C.

Key Features

High-Efficiency Synchronous Step-Down
Converter With up to 95% Efficiency
12-µA Quiescent Current (Typical)
2.7-V to 10-V Operating Input Voltage Range
Adjustable Output Voltage Range: 0.7 V to 6 V
Fixed Output Voltage Options Available With
1.5 V, 1.8 V, and 3.3 V
Synchronizable to External Clock: Up to 1.2 MHz
High-Efficiency Over a Wide Load Current Range
in Power-Save Mode
100% Maximum Duty Cycle for Lowest Dropout
Low-Noise Operation in Forced Fixed-
Frequency PWM Operation Mode
Internal Softstart
Overtemperature and Overcurrent Protected
Available in 10-Pin Micro-Small Outline
Package MSOP

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Voltage Regulators - DC DC Switching Regulators	Series	-
Function	Step-Down	Output Configuration	Positive
Topology	Buck	Output Type	Fixed
Number of Outputs	1	Voltage - Input (Min)	2.7V
Voltage - Input (Max)	10V	Voltage - Output (Min/Fixed)	1.8V
Voltage - Output (Max)	-	Current - Output	800mA
Frequency - Switching	850kHz	Synchronous Rectifier	Yes
Operating Temperature	-40°C ~ 125°C (TJ)	Mounting Type	Surface Mount
Base Product Number	TPS62054