TPS40222

Name: TPS40222
Brand: TI
SKU: TPS40222
Price: 0.78 USD

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1.6A, 1.25-MHz Buck Converter in a 3 mm SON Package

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Data sheet

document-pdfAcrobat 1.6-A, 1.25-MHz BUCK CONVERTER datasheet (Rev. A)

TPS40222

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Data sheet

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Product details

Vin (min) (V)

4.5

Vin (max) (V)

8

Iout (max) (A)

1.6

Operating temperature range (°C)

-40 to 125

Control mode

current mode

Rating

Catalog

Vout (min) (V)

0.8

Vout (max) (V)

7

Features

UVLO fixed

Iq (typ) (µA)

1000

Duty cycle (max) (%)

90

Vin (min) (V)

4.5

Vin (max) (V)

8

Iout (max) (A)

1.6

Operating temperature range (°C)

-40 to 125

Control mode

current mode

Rating

Catalog

Vout (min) (V)

0.8

Vout (max) (V)

7

Features

UVLO fixed

Iq (typ) (µA)

1000

Duty cycle (max) (%)

90

VSON (DRP)

6

9 mm² 3 x 3

Input Voltage Range 4.5 V_DC to 8 V_DC
Output Voltage (0.8 V to 90% V_IN)
0 A to 1.6 A Current Capability
Fixed 1.25-MHz Switching Frequency
Reference 0.8 V ±1%
Internal 250 m N-Channel MOSFET Switch
Current Mode Control with Internal Slope Compensation
Internal Soft-Start
Internal Loop Compensation
Short Circuit Protection
Thermal Shutdown
High Efficiency Up to 92%
Small 3 mm × 3 mm SON Package
APPLICATIONS
- Disk Drives
- Set Top Box
- Point of Load Power
- ASIC Power Supplies

Input Voltage Range 4.5 V_DC to 8 V_DC
Output Voltage (0.8 V to 90% V_IN)
0 A to 1.6 A Current Capability
Fixed 1.25-MHz Switching Frequency
Reference 0.8 V ±1%
Internal 250 m N-Channel MOSFET Switch
Current Mode Control with Internal Slope Compensation
Internal Soft-Start
Internal Loop Compensation
Short Circuit Protection
Thermal Shutdown
High Efficiency Up to 92%
Small 3 mm × 3 mm SON Package
APPLICATIONS
- Disk Drives
- Set Top Box
- Point of Load Power
- ASIC Power Supplies

The TPS40222 is a fixed-frequency, current-mode, non-synchronous buck converter optimized for applications powered by a 5-V distributed source. With internally determined operating frequency, soft-start time, and control loop compensation, the TPS40222 provides many features with a minimum of external components.

The TPS40222 operates at 1.25 MHz and supports up to 1.6-A output loads. The output voltage can be programmed to as low as 0.8 V. The TPS40222 utilizes pulse-by-pulse current limit as well as frequency foldback to protect the converter during a catastrophic short circuited output condition.

The TPS40222 is a fixed-frequency, current-mode, non-synchronous buck converter optimized for applications powered by a 5-V distributed source. With internally determined operating frequency, soft-start time, and control loop compensation, the TPS40222 provides many features with a minimum of external components.

The TPS40222 operates at 1.25 MHz and supports up to 1.6-A output loads. The output voltage can be programmed to as low as 0.8 V. The TPS40222 utilizes pulse-by-pulse current limit as well as frequency foldback to protect the converter during a catastrophic short circuited output condition.

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	Type	Title		Date
*	Data sheet	1.6-A, 1.25-MHz BUCK CONVERTER datasheet (Rev. A)		30 Dec 2005
	User guide	Using the TPS40222, a 5-V Input 1.6-A Output Nonsynchronous Buck Converter		18 Apr 2006