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55
60
65
70
75
80
85
90
95
100
0.001 0.01 0.1 1 10 100
Iout (mA)
Efficiency (%)
Test Conditions:
V = 2.5V, V = 3V,
O IN
T = 25 C, L = 10 H (Toko DFE252012C)
A
o
m
G000
TPS62736
TPS62736
10 PH
L
22PF
V
OUT
V
IN
4.7
F
> 90% at
I
OUT
= 15 P
A
IN
SW
OUT
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TPS62736
,
TPS62737
SLVSBO4C –OCTOBER 2012–REVISED DECEMBER 2014
TPS6273x Programmable Output Voltage Ultra-Low Power Buck Converter
With Up to 50 mA / 200 mA Output Current
1 Features 3 Description
The TPS6273x family provides a highly integrated
1
• Industry's Highest Efficiency at Low Output
ultra low power buck converter solution that is well
Currents: > 90% With I
OUT
= 15 µA
suited for meeting the special needs of ultra-low
• Ultra-Low Power Buck Converter
power applications such as energy harvesting. The
– TPS62736 Optimized for 50-mA Output
TPS6273x provides the system with an externally
programmable regulated supply to preserve the
Current
overall efficiency of the power-management stage
– TPS62737 Optimized for 200-mA Output
compared to a linear step-down converter. This
Current
regulator is intended to step-down the voltage from
– 1.3-V to 5-V Resistor Programmable Output
an energy storage element such as a battery or super
Voltage Range
capacitor to supply the rail to low-voltage electronics.
The regulated output has been optimized to provide
– 2-V to 5.5-V Input Operating Range
high efficiency across low-output currents (<10 µA) to
– 380-nA and 375-nA Quiescent Current During
high currents (200 mA).
Active Operation for TPS62736 and TPS62737
The TPS6273x integrates an optimized hysteretic
– 10-nA Quiescent Current During Ship Mode
controller for low-power applications. The internal
Operation
circuitry uses a time-based sampling system to
– 2% Voltage Regulation Accuracy
reduce the average quiescent current.
• 100% Duty Cycle (Pass Mode)
Device Information
(1)
• EN1 and EN2 Control
PART NUMBER PACKAGE BODY SIZE (NOM)
– Two Power-Off States:
TPS6273x VQFN (14) 3.50 mm × 3.50 mm
1. Shipmode (Full Power-Off State)
(1) For all available packages, see the orderable addendum at
2. Standby Mode Includes VIN_OK Indication
the end of the datasheet.
• Input Power-Good Indication (VIN_OK)
– Push-Pull Driver
– Resistor Programmable Threshold Level
2 Applications
• Ultra-Low Power Applications
• 2-Cell and 3-Cell Alkaline-Powered Applications
• Energy Harvesting
• Solar Chargers
Efficiency vs Output Current
• Thermal Electric Generator (TEG) Harvesting
• Wireless Sensor Networks (WSN)
• Low-Power Wireless Monitoring
• Environmental Monitoring
• Bridge and Structural Health Monitoring (SHM)
• Smart Building Controls
• Portable and Wearable Health Devices
• Entertainment System Remote Controls
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
DATA.
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