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The TPS799L family of low-dropout (LDO), low-power linear regulators offers excellent ac performance with very low ground current. High power-supply rejection ratio (PSRR), low noise, fast start-up, and excellent line and load transient response are provided while consuming a very low 40-μA (typical) ground current.
The TPS799Lxx is stable with ceramic capacitors and uses an advanced BiCMOS fabrication process to yield a dropout voltage of typically 100 mV at a
200-mA output. The TPS799L uses a precision voltage reference and feedback loop to achieve an overall accuracy of 2% over all load, line, process, and temperature variations. The TPS799L features inrush current protection when the EN toggle is used to start the device, immediately clamping the current.
All devices are fully specified over the temperature range of TJ = –40°C to 125°C, and offered in a low-profile, die-sized ball grid array (DSBGA) package, ideal for wireless handsets and WLAN cards.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
TPS799Lxx | DSBGA (5) | 1.57 mm × 1.20 mm |
Changes from A Revision (July 2012) to B Revision
Changes from * Revision (April 2012) to A Revision
PIN | I/O | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
EN | A1 | I | Driving this pin high turns on the regulator. Driving this pin low puts the regulator into shutdown mode. EN can be connected to IN if not used. |
GND | B2 | — | Ground |
IN | C3 | I | Input supply |
NR | A3 | — | Noise reduction; connecting this pin to an external capacitor bypasses noise generated by the internal band gap. This capacitor allows output noise to be reduced to very low levels. |
OUT | C1 | O | Output of the regulator. To assure stability, a small ceramic capacitor (total typical capacitance ≥ 2.0 μF) is required from this pin to ground. |
MIN | MAX | UNIT | ||
---|---|---|---|---|
Voltage(2) | IN | –0.3 | 7.0 | V |
EN | –0.3 | VIN + 0.3 | V | |
OUT | –0.3 | VIN + 0.3 | V | |
Current | OUT | Internally limited | mA | |
Temperature | Operating virtual junction, TJ | –55 | 150 | °C |
MIN | MAX | UNIT | |||
---|---|---|---|---|---|
Tstg | Storage temperature range | –55 | 150 | °C | |
V(ESD) | Electrostatic discharge | Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins(1) | –2000 | 2000 | V |
Charged device model (CDM), per JEDEC specification JESD22-C101, all pins(2) | –500 | 500 |
MIN | NOM | MAX | UNIT | ||
---|---|---|---|---|---|
VIN | Input voltage | 2.7 | 6.5 | V | |
IOUT | Output current | 0.5 | 200 | mA | |
TJ | Operating junction temperature | –40 | 125 | °C |
THERMAL METRIC(1) | TPS799Lxx | UNIT | |
---|---|---|---|
YZY (DSBGA) | |||
5 PINS | |||
RθJA | Junction-to-ambient thermal resistance | 143.3 | °C/W |
RθJC(top) | Junction-to-case (top) thermal resistance | 1.1 | |
RθJB | Junction-to-board thermal resistance | 84.7 | |
ψJT | Junction-to-top characterization parameter | 3.8 | |
ψJB | Junction-to-board characterization parameter | 84.4 | |
RθJC(bot) | Junction-to-case (bottom) thermal resistance | N/A |
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | ||
---|---|---|---|---|---|---|---|
VIN | Input voltage range(1) | 2.7 | 6.5 | V | |||
VOUT | Output voltage range | 5.2 | 6.2 | V | |||
Output accuracy, nominal | TJ = 25°C | –1.0% | 1.0% | ||||
Output accuracy(1)
Over VIN, IOUT, temperature |
VOUT + 0.3 V ≤ VIN ≤ 6.5 V 500 μA ≤ IOUT ≤ 200 mA |
–2.0% | ±1.0% | 2.0% | |||
ΔVO(ΔVI) | Line regulation(1) | VOUT(NOM) + 0.3 V ≤ VIN ≤ 6.5 V | 0.02 | %/V | |||
ΔVO(ΔIO) | Load regulation | 500 μA ≤ IOUT ≤ 200 mA | 0.002 | %/mA | |||
VDO | Dropout voltage (VIN = VOUT(NOM) – 0.1 V) |
VOUT ≥ 3.3 V, IOUT = 200 mA | 90 | 160 | mV | ||
ILIM | Output current limit(2) | VOUT = 0.9 × VOUT(NOM) | 220 | 340 | 600 | mA | |
IGND | Ground pin current | 500 μA ≤ IOUT ≤ 200 mA | 40 | 60 | μA | ||
ISHDN | Shutdown current (IGND) | VEN ≤ 0.4 V, 2.7 V ≤ VIN ≤ 6.5 V | 0.15 | 1.0 | μA | ||
PSRR | Power-supply rejection ratio | VIN = 6.5 V, VOUT = 2.85 V, CNR = 0.01 μF, IOUT = 100 mA |
f = 100 Hz | 70 | dB | ||
f = 1 kHz | 66 | dB | |||||
f = 10 kHz | 51 | dB | |||||
f = 100 kHz | 38 | dB | |||||
VN | Output noise voltage | BW = 10 Hz to 100 kHz | CNR = 0.01 μF | 10.5 × VOUT | μVRMS | ||
CNR = none | 94 × VOUT | μVRMS | |||||
Start-up time | VOUT = 5.7 V, RL = 28 Ω, COUT = 2.2 μF |
CNR = 0.01 μF | 90 | μs | |||
CNR = none | 95 | μs | |||||
VEN(HI) | Enable high (enabled) | 1.2 | VIN | V | |||
VEN(LO) | Enable low (shutdown) | 0 | 0.4 | V | |||
IEN(HI) | Enable pin current, enabled | VEN = VIN = 6.5 V | 0.03 | 1.0 | μA | ||
Tsd | Thermal shutdown temperature | Shutdown, temperature increasing | 165 | °C | |||
Reset, temperature decreasing | 145 | °C | |||||
TJ | Operating junction temperature | –40 | 125 | °C | |||
UVLO | Undervoltage lockout | VIN rising | 1.90 | 2.20 | 2.65 | V | |
Hysteresis | VIN falling | 70 | mV |
VIN = 6.5 V |
VIN = 6.2 V | ||
VIN = 6.5 V |
VIN = 5.95 V |
VIN = 6 V |
TPS799Axx | ||
IOUT = 250 mA |
VIN = 6.5 V |
VIN = 6.5 V | ||
VIN = 5.95 V |
VIN = 6.2 V |
VIN = 6 V |
CIN = COUT = 20 µF | IOUT = 47 mA | |