The TLV61220 device provides a power-supply solution for products powered by either a single-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. Possible output currents depend on the input-to-output voltage ratio. The boost converter is based on a hysteretic controller topology using synchronous rectification to obtain maximum efficiency at minimal quiescent currents. The output voltage of the adjustable version can be programmed by an external resistor divider, or is set internally to a fixed output voltage. The converter can be switched off by a featured enable pin. While being switched off, battery drain is minimized. The device is packaged in a 6-pin thin SOT-23 package (DBV).
spacer
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
TLV61220 | SOT (6) | 2.90 mm x 1.60 mm |
Changes from * Revision (May 2012) to A Revision
TA | OUTPUT VOLTAGE DC/DC |
PACKAGE | PART NUMBER |
---|---|---|---|
–40°C to 85°C | Adjustable | 6-Pin SOT-23 | TLV61220DBV |
PIN | I/O | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
EN | 3 | I | Enable input (VBAT enabled, GND disabled) |
FB | 4 | I | Voltage feedback for programming the output voltage |
GND | 2 | — | IC ground connection for logic and power |
SW | 1 | I | Boost and rectifying switch input |
VBAT | 6 | I | Supply voltage |
VOUT | 5 | O | Boost converter output |
MIN | MAX | UNIT | ||
---|---|---|---|---|
VIN | Input voltage on VBAT, SW, VOUT, EN, FB | –0.3 | 7.5 | V |
TJ | Operating junction temperature | –40 | 150 | °C |
Tstg | Storage temperature | –65 | 150 | °C |
VALUE | UNIT | |||
---|---|---|---|---|
V(ESD) | Electrostatic discharge | Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) | ±2000 | V |
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) | ±1500 |
MIN | NOM | MAX | UNIT | ||
---|---|---|---|---|---|
VIN | Supply voltage at VIN | 0.7 | 5.5 | V | |
TA | Operating free air temperature range | –40 | 85 | °C | |
TJ | Operating virtual junction temperature range | –40 | 125 | °C |
THERMAL METRIC(1) | TLV61220 | UNIT | |
---|---|---|---|
DBV | |||
6 PINS | |||
RθJA | Junction-to-ambient thermal resistance | 185.7 | °C/W |
RθJC(top) | Junction-to-case (top) thermal resistance | 124.3 | |
RθJB | Junction-to-board thermal resistance | 31.3 | |
ψJT | Junction-to-top characterization parameter | 22.9 | |
ψJB | Junction-to-board characterization parameter | 30.8 | |
RθJC(bot) | Junction-to-case (bottom) thermal resistance | N/A |
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | ||
---|---|---|---|---|---|---|---|
DC/DC STAGE | |||||||
VIN | Input voltage range | 0.7 | 5.5 | V | |||
VIN | Minimum input voltage at startup | RLoad ≥ 150 Ω | 0.7 | V | |||
VOUT | TLV61220 output voltage range | VIN < VOUT | 1.8 | 5.5 | V | ||
VFB | TLV61220 feedback voltage | 483 | 500 | 513 | mV | ||
ILH | Inductor current ripple | 200 | mA | ||||
ISW | switch current limit | VOUT = 3.3 V, VIN = 1.2 V, TA = 25 °C | 220 | 400 | mA | ||
VOUT = 3.3 V, TA = -40°C to 85 °C | 180 | 400 | mA | ||||
VOUT = 3.3 V, TA = 0°C to 85 °C | 200 | 400 | mA | ||||
RDS(on) | Rectifying switch on resistance, HSD | VOUT = 3.3 V | 1000 | mΩ | |||
VOUT = 5 V | 700 | mΩ | |||||
Main switch on resistance, LSD | VOUT = 3.3 V | 600 | mΩ | ||||
VOUT = 5 V | 550 | mΩ | |||||
Line regulation | VIN < VOUT | 0.5% | |||||
Load regulation | VIN < VOUT | 0.5% | |||||
IQ | Quiescent current | VIN | IO = 0 mA, VEN = VIN = 1.2 V, VOUT = 3.3 V |
0.5 | 0.9 | μA | |
VOUT | 5 | 7.5 | μA | ||||
ISD | Shutdown current | VIN | VEN = 0 V, VIN = 1.2 V, VOUT ≥ VIN | 0.2 | 0.5 | μA | |
ILKG | Leakage current into VOUT | VEN = 0 V, VIN = 1.2 V, VOUT = 3.3 V | 1 | μA | |||
Leakage current into SW | VEN = 0 V, VIN = 1.2 V, VSW = 1.2 V, VOUT ≥ VIN | 0.01 | 0.2 | μA | |||
IFB | TLV61220 Feedback input current | VFB = 0.5 V | 0.01 | μA | |||
IEN | EN input current | Clamped on GND or VIN (VIN < 1.5 V) | 0.005 | 0.1 | μA | ||
CONTROL STAGE | |||||||
VIL | EN input low voltage | VIN ≤ 1.5 V | 0.2 × VIN | V | |||
VIH | EN input high voltage | VIN ≤ 1.5 V | 0.8 × VIN | V | |||
VIL | EN input low voltage | 5 V > VIN > 1.5 V | 0.4 | V | |||
VIH | EN input high voltage | 5 V > VIN > 1.5 V | 1.2 | V | |||
VUVLO | Undervoltage lockout threshold for turn off | VIN decreasing | 0.5 | 0.7 | V | ||
Overvoltage protection threshold | 5.5 | 7.5 | V | ||||
Overtemperature protection | 140 | °C | |||||
Overtemperature hysteresis | 20 | °C |
FIGURE | ||
---|---|---|
Output Current | Input Voltage, ISW = 330 mA, Minimum ISW= 200 mA, VO = 1.8V | Figure 1 |
Input Voltage, ISW = 400 mA, Minimum ISW = 200 mA, VO = 3.3V | Figure 2 | |
Input Voltage, ISW = 380 mA, Minimum ISW = 200 mA, VO = 5V | Figure 3 | |
Efficiency | vs Output Current, VO = 1.8 V, VI = [0.7 V; 1.2 V; 1.5 V] | Figure 4 |
vs Output Current, VO = 3.3 V, VI = [0.7 V; 1.2 V; 2.4V; 3V] | Figure 5 | |
vs Output Current, VO = 5 V, VI = [0.7 V; 1.2 V; 3.6V; 4.2V] | Figure 6 | |
Efficiency | vs Input Voltage, VO = 1.8 V, IO = [100µA; 1mA ; 10mA; 50mA] | Figure 7 |
vs Input Voltage, VO = 3.3 V, IO = [100µA; 1mA ; 10mA; 50mA] | Figure 8 | |
vs Input Voltage, VO = 5 V, IO = [100µA; 1mA ; 10mA; 50mA] | Figure 9 | |
Output Voltage | vs Output Current, VO = 1.8 V, VI = [0.7 V; 1.2 V] | Figure 10 |
vs Output Current, VO = 3.3 V, VI = [0.7 V; 1.2 V; 2.4 V] | Figure 11 |
VO = 1.8 V |
VO = 5 V |
VO = 3.3 V |