The TPS7H1210-SEP negative voltage linear regulator is a low noise, high PSRR regulator capable of sourcing a maximum load of 1 A.
The regulator include a CMOS logic-level-compatible enable pin (EN) to allow for user-customizable power management schemes. Other features include built-in current limit and thermal shutdown to protect the device and system during fault conditions.
The TPS7H1210-SEP device is designed using bipolar technology primarily for high-accuracy, low-noise applications, where clean voltage rails are critical to maximize system performance. Therefore, it ideal to power op amps, ADCs, DACs, and other high-performance analog circuitry.
Additionally, the TPS7H1210-SEP device is suitable for post DC-DC converter regulation. By filtering the output voltage ripple inherent to DC-DC switching conversion, maximum system performance is ensured in sensitive devices and RF applications.
PART NUMBER(1) | GRADE | PACKAGE(2) |
---|---|---|
TPS7H1210MRGWSEP | 20 krad(Si) RLAT, 30 krad(Si) characterized | VQFN (20) 5.00 mm × 5.00 mm Mass = 83.6 mg |
TPS7H1210EVM | Evaluation board | EVM |
DATE | REVISION | NOTES |
---|---|---|
* | Initial Release |
PIN | I/O(1) | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
EN | 13 | I | Enable. This dual-polarity pin turns the regulator on when |VEN| ≥ 2 V. The EN pin can be connected to IN if not used. If VEN is negative polarity, then keep |VEN| ≤ |VIN|. |
FB | 3 | I | Feedback. This pin is the input to the control-loop error amplifier. It is used to set the output voltage of the device and is normally equal to VREF (–1.182 V, typical) during operation. |
GND | 7 | — | Ground. |
IN | 15, 16 | I | Input supply. It is recommended to connect a 10-µF capacitor from IN to GND (as close to the device as possible). |
NC | 2, 4–6, 8–12, 17–19 | — | No connect. This pin is not internally connected. It is recommended to connect these pins to GND to prevent charge buildup; however, these pins can also be left open or tied to any voltage between GND and VIN. |
NR_SS | 14 | — | Noise reduction and soft start. A capacitor connected from this pin to GND controls the soft-start function and allows RMS noise to be reduced to very low levels. TI recommends connecting a 100-nF capacitor from NR_SS to GND (as close to the device as possible) to filter the noise generated by the internal band gap and maximize AC performance. |
OUT | 1, 20 | O | Output of the regulator. A capacitor greater than or equal to 10 µF must be tied from this pin to ground to ensure stability. TI recommends connecting a 47-µF ceramic capacitor from OUT to GND (as close to the device as possible) to maximize AC performance. |
Thermal Pad |
— | — | Connect the thermal pad to a large-area ground plane. The thermal pad is not internally grounded and it must be externally tied to GND for proper operation. |
MIN | MAX | UNIT | ||
---|---|---|---|---|
Input voltage | IN to GND | –35 | 0.3 | V |
FB to GND | –2 | 0.3 | V | |
FB to IN | –0.3 | 35 | V | |
EN to GND | –35 | 10 | V | |
NR_SS to IN | –0.3 | 35 | V | |
NR_SS to GND | –2 | 0.3 | V | |
Output voltage | OUT to GND | –33 | 0.3 | V |
OUT to IN | –0.3 | 35 | V | |
Output current | Peak output | Internally limited | ||
Operating virtual junction temperature | TJ | –55 | 150 | °C |
Storage temperature | Tstg | –65 | 150 | °C |