TS3003

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FEATURES

 Ultra Low Supply Current: 1.9

μA at 25kHz

 Supply Voltage Operation: 1.55V to 5.25V

 Single Resistor Sets FOUT at 50% Duty Cycle

 Programmable FOUT Period:



9kHz

≤ FOUT ≤ 300kHz

 FOUT Period Accuracy: 3%

 FOUT Period Drift: 0.02%/ºC

 Single Resistor Sets Output Frequency

 Separate PWM Control and Buffered Output

 FOUT/PWMOUT Output Driver Resistance:

160

Ω

APPLICATIONS

Portable and Battery-Powered Equipment

Low-Parts-Count Nanopower Oscillator

Compact Micropower Replacement for Crystal and

Ceramic Oscillators

Micropower Pulse-width Modulation Control

Micropower Pulse-position Modulation Control

Micropower Clock Generation

Micropower Sequential Timing

DESCRIPTION

The TS3003 is a single-supply, second-generation

oscillator/timer fully specified to operate at a supply

voltage range of 1.55 V to 5.25 V while consuming

less than 2.4

μA(max) supply current. Requiring only

a resistor to set the base output frequency (or output

period) at 25 kHz (or 40 µs) with a 50% duty cycle,

the TS3003 timer/oscillator is compact, easy-to-use,

and versatile. Optimized for ultra-long life, low

frequency, battery-powered/portable applications, the

TS3003 joins the TS3001, TS3002, TS3004, and

TS3006 in the CMOS timer family of “NanoWatt

Analog™”

high-performance

analog

integrated

circuits.

The TS3003 output frequency can be user-adjusted

from 9 kHz to 300 kHz with a single resistor. In

addition, the TS3003 represents a 25% reduction in

pcb area and a factor-of-10 lower power consumption

over

other

CMOS-based

integrated

circuit

oscillators/timers. When compared against industry-

standard 555-timer-based products, the TS3003

offers up to 84% reduction in pcb area and over three

orders of magnitude lower power consumption.

The TS3003 is fully specified over the -40°C to +85°C

temperature range and is available in a low-profile,

10-pin 3x3 mm TDFN package with an exposed

back-side paddle.

A 1.55V to 5.25V, 1.9µA, 9kHz to 300kHz Silicon Timer

TYPICAL APPLICATION CIRCUIT